Benchmark 2021-B23 Mortgage Trust

07/01/2024 | Press release | Distributed by Public on 07/01/2024 09:57

Asset Backed Issuer Distribution Report Form 10 D


Benchmark 2021-B23 Mortgage Trust
Commercial Mortgage Pass-Through Certificates, Series 2021-B23
STATEMENT TO NOTEHOLDERS
June 17, 2024
TRANSACTION PARTIES
Depositor: Citigroup Commercial Mortgage Securities Inc.
Master Servicer / Special Servicer: CWCapital Asset Management LLC
Asset Representations Reviewer /
Park Bridge Lender Services LLC
Operating Advisor:
Trustee: Wilmington Trust, National Association
Certificate Administrator: Citibank, N.A.
Dragana Boskovic Citibank, Agency and Trust
(212) 816-0735 388 Greenwich Street Trading, 4th Floor
[email protected] New York, NY 10013
TABLE OF CONTENTS
1 . Distribution Summary 2
1.1 . Summary 2
1.2 . Factors 4
1.3 . Interest Detail 5
1.4 . Interest Shortfall Detail 7
1.5 . Principal Detail 9
2 . Reconciliation Detail 10
3 . Other Information 11
4 . Stratification Detail 12
5 . Mortgage Loan Detail 17
6 . NOI Detail 20
7 . Delinquency Loan Detail 22
8 . Collateral Performance Delinquency and Loan Status Detail 23
9 . Appraisal Reduction Detail 24
10 . Historical Appraisal Reduction Detail 25
11 . Loan Modification Detail 26
12 . Historical Loan Modification Detail 27
13 . Specially Serviced Loan Detail 28
14 . Historical Specially Serviced Loan Detail 29
15 . Unscheduled Principal Detail 30
16 . Historical Unscheduled Principal Detail 31
17 . Liquidated Loan Detail 32
18 . Historical Liquidated Loan Detail 33
19 . CREFC Investor Reporting Package Legends 34
20 . Notes 35
Reports Available at sf.citidirect.com v. 21.09.28 Page 1 of 35 © Copyright 2024 Citigroup

Benchmark 2021-B23 Mortgage Trust
Commercial Mortgage Pass-Through Certificates, Series 2021-B23
DISTRIBUTION SUMMARY
June 17, 2024
Accrual Other Non-Cash
Original Prior Pass-Through Day Interest (As Interest) Principal Total Realized Loss Balance Current
Class Balance Balance Rate Count Distributed Distributed Distributed Distributed /(Recovery) Change Balance
A-1 21,244,000.00 6,214,762.15 0.418000 % 30/360 2,164.81 - 534,605.25 536,770.06 - - 5,680,156.90
A-2 155,183,000.00 155,183,000.00 1.620000 % 30/360 209,497.05 - - 209,497.05 - - 155,183,000.00
A-4 A1 200,000,000.00 200,000,000.00 1.823000 % 30/360 303,833.33 - - 303,833.33 - - 200,000,000.00
A-4 A2 200,000,000.00 200,000,000.00 1.823000 % 30/360 303,833.33 - - 303,833.33 - - 200,000,000.00
A-5 421,699,000.00 421,699,000.00 2.070000 % 30/360 727,430.77 - - 727,430.77 - - 421,699,000.00
A-AB 19,922,000.00 19,922,000.00 1.766000 % 30/360 29,318.54 - - 29,318.54 - - 19,922,000.00
A-S 163,615,000.00 163,615,000.00 2.274000 % 30/360 310,050.42 - - 310,050.42 - - 163,615,000.00
B 59,992,000.00 59,992,000.00 2.095000 % 30/360 104,736.03 - - 104,736.03 - - 59,992,000.00
C 45,449,000.00 45,449,000.00 2.563000 % 30/360 97,071.49 - - 97,071.49 - - 45,449,000.00
COMB_VRR 76,545,008.00 75,753,995.45 0.000000 % 30/360 208,971.36 - 28,137.12 237,108.48 - - 75,725,858.33
D 50,902,000.00 50,902,000.00 2.000000 % 30/360 84,836.67 - - 84,836.67 - - 50,902,000.00
E 21,816,000.00 21,816,000.00 2.000000 % 30/360 36,360.00 - - 36,360.00 - - 21,816,000.00
F 32,723,000.00 32,723,000.00 2.310263 % 30/360 62,998.94 - - 62,998.94 - - 32,723,000.00
G 14,543,000.00 14,543,000.00 2.310263 % 30/360 27,998.46 - - 27,998.46 - - 14,543,000.00
H 47,267,145.00 47,267,145.00 2.310263 % 30/360 90,999.61 - - 90,999.61 - - 47,267,145.00
R - - 0.000000 % 30/360 - - - - - - -
S - - 0.000000 % 30/360 - - - - - - -
Spear 360-A 12,350,000.00 12,350,000.00 2.851548 % 30/360 29,347.18 - - 29,347.18 - - 12,350,000.00
Spear 360-B 16,387,000.00 16,387,000.00 2.851548 % 30/360 38,940.26 - - 38,940.26 - - 16,387,000.00
Spear 360-C 16,388,000.00 16,388,000.00 2.851548 % 30/360 38,942.64 - - 38,942.64 - - 16,388,000.00
Spear 360-D 7,125,000.00 7,125,000.00 2.851548 % 30/360 16,931.07 - - 16,931.07 - - 7,125,000.00
Spear 360-V 2,750,000.00 2,750,000.00 2.851548 % 30/360 6,534.80 - - 6,534.80 - - 2,750,000.00
Total 1,585,900,153.00 1,570,079,902.60 2,730,796.76 - 562,742.37 3,293,539.13 - - 1,569,517,160.23
Notional
X-A 1,181,663,000.00 1,166,633,761.94 1.370190 % 30/360 1,332,092.02 - - 1,332,092.02 - (534,605.25 ) 1,166,099,156.69
X-B 105,441,000.00 105,441,000.00 1.013537 % 30/360 89,057.00 - - 89,057.00 - - 105,441,000.00
X-D 72,718,000.00 72,718,000.00 1.310263 % 30/360 79,399.74 - - 79,399.74 - - 72,718,000.00
X-F 32,723,000.00 32,723,000.00 1.000000 % 30/360 27,269.17 - - 27,269.17 - - 32,723,000.00
X-G 14,543,000.00 14,543,000.00 1.000000 % 30/360 12,119.17 - - 12,119.17 - - 14,543,000.00
X-H 47,267,145.00 47,267,145.00 1.000000 % 30/360 39,389.29 - - 39,389.29 - - 47,267,145.00
Reports Available at sf.citidirect.com v. 21.09.28 Page 2 of 35 © Copyright 2024 Citigroup

Benchmark 2021-B23 Mortgage Trust
Commercial Mortgage Pass-Through Certificates, Series 2021-B23
DISTRIBUTION SUMMARY
June 17, 2024
Accrual Other Non-Cash
Original Prior Pass-Through Day Interest (As Interest) Principal Total Realized Loss Balance Current
Class Balance Balance Rate Count Distributed Distributed Distributed Distributed /(Recovery) Change Balance
Total 1,454,355,145.00 1,439,325,906.94 1,579,326.39 - - 1,579,326.39 - (534,605.25 ) 1,438,791,301.69
Grand Total 3,040,255,298.00 3,009,405,809.54 4,310,123.15 - 562,742.37 4,872,865.52 - (534,605.25 ) 3,008,308,461.92
Reports Available at sf.citidirect.com v. 21.09.28 Page 3 of 35 © Copyright 2024 Citigroup

Benchmark 2021-B23 Mortgage Trust
Commercial Mortgage Pass-Through Certificates, Series 2021-B23
DISTRIBUTION SUMMARY - FACTORS
June 17, 2024
Other Non-Cash
Record Interest (As Interest) Principal Total Realized Loss Balance Current
Class CUSIP Date Distributed Distributed Distributed Distributed /(Recovery) Change Balance
A-1 08162 RAA5 05/31/2024 0.10190218 - 25.16499953 25.26690171 - - 267.37699586
A-2 08162 RAB3 05/31/2024 1.35000000 - - 1.35000000 - - 1,000.00000000
A-4 A1 08162 RAC1 05/31/2024 1.51916665 - - 1.51916665 - - 1,000.00000000
A-4 A2 08162RBX4 U0810TAU7 08162RBY2 05/31/2024 1.51916665 - - 1.51916665 - - 1,000.00000000
A-5 08162 RAD9 05/31/2024 1.72499999 - - 1.72499999 - - 1,000.00000000
A-AB 08162 RAE7 05/31/2024 1.47166650 - - 1.47166650 - - 1,000.00000000
A-S 08162 RAG2 05/31/2024 1.89499997 - - 1.89499997 - - 1,000.00000000
B 08162 RAH0 05/31/2024 1.74583328 - - 1.74583328 - - 1,000.00000000
C 08162 RAJ6 05/31/2024 2.13583335 - - 2.13583335 - - 1,000.00000000
COMB_VRR 08162 RBG1 05/31/2024 2.73004557 - 0.36758922 3.09763479 - - 989.29845732
D 08162RAK3 U0810TAA1 08162RAL1 05/31/2024 1.66666673 - - 1.66666673 - - 1,000.00000000
E 08162RAM9 U0810TAB9 08162RAN7 05/31/2024 1.66666667 - - 1.66666667 - - 1,000.00000000
F 08162RAP2 U0810TAC7 08162RAQ0 05/31/2024 1.92521896 - - 1.92521896 - - 1,000.00000000
G 08162RAR8 U0810TAD5 08162RAS6 05/31/2024 1.92521901 - - 1.92521901 - - 1,000.00000000
H 08162RAT4 U0810TAE3 08162RAU1 05/31/2024 1.92521909 - - 1.92521909 - - 1,000.00000000
R 08162 RBH9 05/31/2024 - - - - - - -
S 08162 RBV8 05/31/2024 - - - - - - -
Spear 360-A 08162RBK2 U0810TAN3 08162RBL0 05/31/2024 2.37628988 - - 2.37628988 - - 1,000.00000000
Spear 360-B 08162RBM8 U0810TAP8 08162RBN6 05/31/2024 2.37628974 - - 2.37628974 - - 1,000.00000000
Spear 360-C 08162RBP1 U0810TAQ6 08162RBQ9 05/31/2024 2.37628997 - - 2.37628997 - - 1,000.00000000
Spear 360-D 08162RBR7 U0810TAR4 08162RBS5 05/31/2024 2.37629053 - - 2.37629053 - - 1,000.00000000
Spear 360-V 08162 RBU0 05/31/2024 2.37629091 - - 2.37629091 - - 1,000.00000000
X-A 08162 RAF4 05/31/2024 1.12730281 - - 1.12730281 - - 986.82886465
X-B 08162RAV9 U0810TAF0 08162RAW7 05/31/2024 0.84461452 - - 0.84461452 - - 1,000.00000000
X-D 08162RAX5 U0810TAG8 08162RAY3 05/31/2024 1.09188564 - - 1.09188564 - - 1,000.00000000
X-F 08162RAZ0 U0810TAH6 08162RBA4 05/31/2024 0.83333344 - - 0.83333344 - - 1,000.00000000
X-G 08162RBB2 U0810TAJ2 08162RBC0 05/31/2024 0.83333356 - - 0.83333356 - - 1,000.00000000
X-H 08162RBD8 U0810TAK9 08162RBE6 05/31/2024 0.83333339 - - 0.83333339 - - 1,000.00000000
Reports Available at sf.citidirect.com v. 21.09.28 Page 4 of 35 © Copyright 2024 Citigroup

Benchmark 2021-B23 Mortgage Trust
Commercial Mortgage Pass-Through Certificates, Series 2021-B23
DISTRIBUTION INFORMATION - INTEREST DETAIL
June 17, 2024
Rate Interest Shortfall Paid
Accrual Net Non Carry Basis Carry
Class Uncapped Capped Next Dates Accrued Deferred Recovered Forward Risk Accrued Forward Basis Risk Total
A-1 0.41800 % 0.41800 % 0.41800 % 05/01-05/31 2,164.81 - - - - 2,164.81 - - 2,164.81
A-2 1.62000 % 1.62000 % 1.62000 % 05/01-05/31 209,497.05 - - - - 209,497.05 - - 209,497.05
A-4 A1 1.82300 % 1.82300 % 1.82300 % 05/01-05/31 303,833.33 - - - - 303,833.33 - - 303,833.33
A-4 A2 1.82300 % 1.82300 % 1.82300 % 05/01-05/31 303,833.33 - - - - 303,833.33 - - 303,833.33
A-5 2.07000 % 2.07000 % 2.07000 % 05/01-05/31 727,430.77 - - - - 727,430.77 - - 727,430.77
A-AB 1.76600 % 1.76600 % 1.76600 % 05/01-05/31 29,318.54 - - - - 29,318.54 - - 29,318.54
A-S 2.27400 % 2.27400 % 2.27400 % 05/01-05/31 310,050.42 - - - - 310,050.42 - - 310,050.42
B 2.09500 % 2.09500 % 2.09500 % 05/01-05/31 104,736.03 - - - - 104,736.03 - - 104,736.03
C 2.56300 % 2.56300 % 2.56300 % 05/01-05/31 97,071.49 - - - - 97,071.49 - - 97,071.49
COMB_VRR 0.00000 % 0.00000 % 0.00000 % 05/01-05/31 208,971.36 - - - - 208,971.36 - - 208,971.36
D 2.00000 % 2.00000 % 2.00000 % 05/01-05/31 84,836.67 - - - - 84,836.67 - - 84,836.67
E 2.00000 % 2.00000 % 2.00000 % 05/01-05/31 36,360.00 - - - - 36,360.00 - - 36,360.00
F 2.20099 % 2.31026 % 2.31026 % 05/01-05/31 62,998.94 - - - - 62,998.94 - - 62,998.94
G 2.20099 % 2.31026 % 2.31026 % 05/01-05/31 27,998.46 - - - - 27,998.46 - - 27,998.46
H 2.20099 % 2.31026 % 2.31026 % 05/01-05/31 90,999.61 - - 16.55 - 90,999.61 - - 90,999.61
R 0.00000 % 0.00000 % 0.00000 % 05/01-05/31 - - - - - - - - -
S 0.00000 % 0.00000 % 0.00000 % 05/01-05/31 - - - - - - - - -
Spear 360-A 2.75956 % 2.85155 % 2.85155 % 05/01-05/31 29,347.18 - - - - 29,347.18 - - 29,347.18
Spear 360-B 2.75956 % 2.85155 % 2.85155 % 05/01-05/31 38,940.26 - - - - 38,940.26 - - 38,940.26
Spear 360-C 2.75956 % 2.85155 % 2.85155 % 05/01-05/31 38,942.64 - - - - 38,942.64 - - 38,942.64
Spear 360-D 2.75956 % 2.85155 % 2.85155 % 05/01-05/31 16,931.07 - - - - 16,931.07 - - 16,931.07
Spear 360-V 2.75956 % 2.85155 % 2.85155 % 05/01-05/31 6,534.80 - - - - 6,534.80 - - 6,534.80
Total 2,730,796.76 - - 16.55 - 2,730,796.76 - - 2,730,796.76
Notional
X-A 1.28027 % 1.37019 % 1.37019 % 05/01-05/31 1,332,092.02 - - - - 1,332,092.02 - - 1,332,092.02
X-B 0.90426 % 1.01354 % 1.01354 % 05/01-05/31 89,057.00 - - - - 89,057.00 - - 89,057.00
X-D 1.20099 % 1.31026 % 1.31026 % 05/01-05/31 79,399.74 - - - - 79,399.74 - - 79,399.74
X-F 1.00000 % 1.00000 % 1.00000 % 05/01-05/31 27,269.17 - - - - 27,269.17 - - 27,269.17
X-G 1.00000 % 1.00000 % 1.00000 % 05/01-05/31 12,119.17 - - - - 12,119.17 - - 12,119.17
Reports Available at sf.citidirect.com v. 21.09.28 Page 5 of 35 © Copyright 2024 Citigroup

Benchmark 2021-B23 Mortgage Trust
Commercial Mortgage Pass-Through Certificates, Series 2021-B23
DISTRIBUTION INFORMATION - INTEREST DETAIL
June 17, 2024
Paid
Rate Interest Shortfall
Accrual Net Non Carry Basis Carry
Class Uncapped Capped Next Dates Accrued Deferred Recovered Forward Risk Accrued Forward Basis Risk Total
X-H 1.00000 % 1.00000 % 1.00000 % 05/01-05/31 39,389.29 - - - - 39,389.29 - - 39,389.29
Total 1,579,326.39 - - - - 1,579,326.39 - - 1,579,326.39
Grand Total 4,310,123.15 - - 16.55 - 4,310,123.15 - - 4,310,123.15
Reports Available at sf.citidirect.com v. 21.09.28 Page 6 of 35 © Copyright 2024 Citigroup

Benchmark 2021-B23 Mortgage Trust
Commercial Mortgage Pass-Through Certificates, Series 2021-B23
DISTRIBUTION INFORMATION - INTEREST SHORTFALL
June 17, 2024
Non-Recov Shortfall Carry Forward Interest Basis Risk Shortfall
Other
Class PPIS SSRA Shortfall Prior Int. on Prior New Paid Outstanding Prior Int. on Prior New Paid Outstanding
A-1 - - - - - - - - - - - - -
A-2 - - - - - - - - - - - - -
A-4 A1 - - - - - - - - - - - - -
A-4 A2 - - - - - - - - - - - - -
A-5 - - - - - - - - - - - - -
A-AB - - - - - - - - - - - - -
A-S - - - - - - - - - - - - -
B - - - - - - - - - - - - -
C - - - - - - - - - - - - -
COMB_VRR - - - - - - - - - - - - -
D - - - - - - - - - - - - -
E - - - - - - - - - - - - -
F - - - - - - - - - - - - -
G - - - - - - - - - - - - -
H - - - 8,595.60 16.55 - - 8,612.15 - - - - -
R - - - - - - - - - - - - -
S - - - - - - - - - - - - -
Spear 360-A - - - - - - - - - - - - -
Spear 360-B - - - - - - - - - - - - -
Spear 360-C - - - - - - - - - - - - -
Spear 360-D - - - 0.33 - - - 0.33 - - - - -
Spear 360-V - - - - - - - - - - - - -
Total - - - 8,595.93 16.55 - - 8,612.48 - - - - -
Notional
X-A - - - - - - - - - - - - -
X-B - - - - - - - - - - - - -
X-D - - - - - - - - - - - - -
X-F - - - - - - - - - - - - -
X-G - - - - - - - - - - - - -
Reports Available at sf.citidirect.com v. 21.09.28 Page 7 of 35 © Copyright 2024 Citigroup

Benchmark 2021-B23 Mortgage Trust
Commercial Mortgage Pass-Through Certificates, Series 2021-B23
DISTRIBUTION INFORMATION - INTEREST SHORTFALL DETAIL
June 17, 2024
Non-Recov Shortfall Carry Forward Interest Basis Risk Shortfall
Other
Class PPIS SSRA Shortfall Prior Int. on Prior New Paid Outstanding Prior Int. on Prior New Paid Outstanding
X-H - - - - - - - - - - - - -
Total - - - - - - - - - - - - -
Grand Total - - - 8,595.93 16.55 - - 8,612.48 - - - - -
Reports Available at sf.citidirect.com v. 21.09.28 Page 8 of 35 © Copyright 2024 Citigroup

Benchmark 2021-B23 Mortgage Trust
Commercial Mortgage Pass-Through Certificates, Series 2021-B23
DISTRIBUTION INFORMATION - PRINCIPAL DETAIL
June 17, 2024
Sub % Sub %
Non-Cash Cumulative
Prior Principal Accreted Realized Loss Balance Current Realized Class % Class %
Class Balance Distributed Principal /(Recovery) Change Balance Loss Original Current Original Current
A-1 6,214,762.15 534,605.25 - - - 5,680,156.90 - 1.34 % 0.36 % 30.00 % 30.32 %
A-2 155,183,000.00 - - - - 155,183,000.00 - 9.79 % 9.89 % 30.00 % 30.32 %
A-4 A1 200,000,000.00 - - - - 200,000,000.00 - 12.61 % 12.74 % 30.00 % 30.32 %
A-4 A2 200,000,000.00 - - - - 200,000,000.00 - 12.61 % 12.74 % 30.00 % 30.32 %
A-5 421,699,000.00 - - - - 421,699,000.00 - 26.59 % 26.87 % 30.00 % 30.32 %
A-AB 19,922,000.00 - - - - 19,922,000.00 - 1.26 % 1.27 % 30.00 % 30.32 %
A-S 163,615,000.00 - - - - 163,615,000.00 - 10.32 % 10.42 % 18.75 % 18.95 %
B 59,992,000.00 - - - - 59,992,000.00 - 3.78 % 3.82 % 14.63 % 14.78 %
C 45,449,000.00 - - - - 45,449,000.00 - 2.87 % 2.90 % 11.50 % 11.62 %
COMB_VRR 75,753,995.45 28,137.12 - - - 75,725,858.33 - 4.83 % 4.82 % 0.00 % 0.00 %
D 50,902,000.00 - - - - 50,902,000.00 - 3.21 % 3.24 % 8.00 % 8.09 %
E 21,816,000.00 - - - - 21,816,000.00 - 1.38 % 1.39 % 6.50 % 6.57 %
F 32,723,000.00 - - - - 32,723,000.00 - 2.06 % 2.08 % 4.25 % 4.30 %
G 14,543,000.00 - - - - 14,543,000.00 - 0.92 % 0.93 % 3.25 % 3.29 %
H 47,267,145.00 - - - - 47,267,145.00 - 2.98 % 3.01 % 0.00 % 0.00 %
R - - - - - - - 0.00 % 0.00 % 0.00 % 0.00 %
S - - - - - - - 0.00 % 0.00 % 0.00 % 0.00 %
Spear 360-A 12,350,000.00 - - - - 12,350,000.00 - 0.78 % 0.79 % 77.55 % 77.55 %
Spear 360-B 16,387,000.00 - - - - 16,387,000.00 - 1.03 % 1.04 % 47.75 % 47.75 %
Spear 360-C 16,388,000.00 - - - - 16,388,000.00 - 1.03 % 1.04 % 17.95 % 17.95 %
Spear 360-D 7,125,000.00 - - - - 7,125,000.00 - 0.45 % 0.45 % 5.00 % 5.00 %
Spear 360-V 2,750,000.00 - - - - 2,750,000.00 - 0.17 % 0.18 % 0.00 % 0.00 %
Total 1,570,079,902.60 562,742.37 - - - 1,569,517,160.23 - 100.01 % 100.00 %
Reports Available at sf.citidirect.com v. 21.09.28 Page 9 of 35 © Copyright 2024 Citigroup

Benchmark 2021-B23 Mortgage Trust
Commercial Mortgage Pass-Through Certificates, Series 2021-B23
RECONCILIATION DETAIL
June 17, 2024
SOURCE OF FUNDS ALLOCATION OF FUNDS
Interest Funds Available Scheduled Fees
Scheduled Interest 4,326,513.80 Servicing Fee 6,791.26
Prepayment Interest Excess - Trustee/Certificate Administrator Fee 7,436.07
Prepayment Interest Shortfall - Operating Advisor Fee 1,278.58
Interest Adjustments - Asset Representations Reviewer Ongoing Fee 208.74
ASER Amount - CREFC Intellectual Property Royalty License Fee 676.00
Realized Loss in Excess of Principal Balance -
Total Scheduled Fees 16,390.65
Total Interest Funds Available 4,326,513.80 Additional Fees, Expenses, etc.
Principal Funds Available Additional Servicing Fee -
Scheduled Principal 562,742.37 Special Servicing Fee -
Unscheduled Principal Collections - Work-out Fee -
Net Liquidation Proceeds - Liquidation Fee -
Repurchased Principal - Trust Fund Expenses -
Substitution Principal - Trust Advisor Expenses -
Other Principal - Reimbursement of Interest on Advances to the Servicer -
Borrower Reimbursable Trust Fund Expenses -
Total Principal Funds Available 562,742.37
Other Expenses -
Other Funds Available
Yield Maintenance Charges - Total Additional Fees, Expenses, etc. -
Withdrawal of Withheld Amounts from the Interest Reserve Distributions
Account -
Interest Distribution 4,310,123.15
Deposit of Withheld Amounts to the Interest Reserve Account -
Principal Distribution 562,742.37
Total Other Funds Available - Yield Maintenance Charge Distribution -
Total Distributions 4,872,865.52
Total Funds Available 4,889,256.17 Total Funds Allocated 4,889,256.17
Reports Available at sf.citidirect.com v. 21.09.28 Page 10 of 35 © Copyright 2024 Citigroup

Benchmark 2021-B23 Mortgage Trust
Commercial Mortgage Pass-Through Certificates, Series 2021-B23
OTHER INFORMATION
June 17, 2024
Other Information
Monthly Debt Service Payment Advance 0.00
Has a Consultation Period Commenced? N
Has a CCR Consultation Period Commenced? N
Has a Control Period Terminated? N
Has a Consultation Period Terminated? N
Collateral Information
% of Cut-Off Principal Balance Outstanding 98.966959 %
Controlling Class Information
The Controlling Class Representative is LD II Holdco XV, LLC
There Are No Disclosable Special Servicer Fees.
Reports Available at sf.citidirect.com v. 21.09.28 Page 11 of 35 © Copyright 2024 Citigroup

Benchmark 2021-B23 Mortgage Trust
Commercial Mortgage Pass-Through Certificates, Series 2021-B23
STRATIFICATION DETAIL
June 17, 2024
Anticipated Remaining Term
Anticipated Remaining Asset Ending Scheduled % of Wtd Avg
Term Range Count Balance Agg.Bal. WAC WAM DSCR
60 Months or Less 3 157,400,000.00 10.03 3.1276 17 2.820496
61 to 90 Months 58 1,412,117,160.23 89.97 3.2082 78 3.678097
91 Months or Greater 0 0.00 0.00 0.0000 0 0.000000
Total 61 1,569,517,160.23 100.00 3.2001 71 3.592092
Debt Service Coverage Ratio
Debt Service Coverage Asset Ending Scheduled % of Wtd Avg
Ratio Range Count Balance Agg.Bal. WAC WAM DSCR
1.250 or Less 2 20,795,734.67 1.32 3.7466 79 1.176732
1.251 to 1.500 2 26,251,692.99 1.67 3.7714 79 1.341907
1.501 to 1.750 5 49,800,276.54 3.17 3.6518 79 1.584013
1.751 to 2.000 3 44,527,803.89 2.84 3.3214 26 1.955780
2.001 to 2.250 7 170,029,221.17 10.83 2.9017 79 2.134314
2.251 to 2.500 3 78,300,000.00 4.99 3.5737 69 2.331264
2.501 to 2.750 6 219,449,948.72 13.98 3.3678 79 2.649285
2.751 to 3.000 7 281,584,978.93 17.94 3.1160 55 2.912197
3.001 to 3.250 6 90,019,598.28 5.74 3.4927 79 3.121507
3.251 to 3.500 2 30,865,000.00 1.97 3.5220 43 3.429290
3.501 to 3.750 5 114,099,131.44 7.27 3.3798 77 3.533430
3.751 to 4.000 2 52,440,100.00 3.34 3.1678 79 3.805122
4.001 or Greater 11 391,353,673.60 24.93 2.9420 78 6.326213
Total 61 1,569,517,160.23 100.00 3.2001 71 3.592092
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Benchmark 2021-B23 Mortgage Trust
Commercial Mortgage Pass-Through Certificates, Series 2021-B23
STRATIFICATION DETAIL
June 17, 2024
Ending Schedule Balance
Ending Schedule Balance Asset Ending Scheduled % of Wtd Avg
Range Count Balance Agg.Bal. WAC WAM DSCR
1 to 5,000,000 5 19,487,556.18 1.24 3.5252 79 2.414228
10,000,001 to 15,000,000 10 126,644,219.57 8.07 3.4797 79 2.619458
15,000,001 to 20,000,000 10 181,940,000.00 11.59 3.2723 71 3.555856
20,000,001 to 25,000,000 1 22,128,949.14 1.41 2.7681 79 2.130000
25,000,001 to 30,000,000 3 87,500,000.00 5.57 2.8392 75 2.909143
30,000,001 to 35,000,000 5 167,915,100.00 10.70 3.1214 63 5.931797
35,000,001 to 40,000,000 2 75,184,978.93 4.79 3.4378 79 2.951094
40,000,001 to 45,000,000 2 84,500,000.00 5.38 2.9230 79 3.824308
45,000,001 to 50,000,000 2 97,199,948.72 6.19 2.8953 79 3.539342
5,000,001 to 10,000,000 12 82,854,560.40 5.28 3.7264 78 2.385249
50,000,001 to 55,000,000 1 55,000,000.00 3.50 2.7681 79 2.130000
55,000,001 to 60,000,000 2 118,075,000.00 7.52 3.4680 73 5.382450
60,000,001 to 65,000,000 1 63,700,000.00 4.06 3.3100 79 2.610000
65,000,001 to 70,000,000 2 132,386,847.29 8.43 3.0178 79 2.817984
70,000,001 to 75,000,000 2 150,000,000.00 9.56 3.3197 79 4.145000
75,000,001 to 80,000,000 0 0.00 0.00 0.0000 0 0.000000
80,000,001 to 85,000,000 0 0.00 0.00 0.0000 0 0.000000
85,000,000+ 1 105,000,000.00 6.69 3.0320 19 2.990000
Total 61 1,569,517,160.23 100.00 3.2001 71 3.592092
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Benchmark 2021-B23 Mortgage Trust
Commercial Mortgage Pass-Through Certificates, Series 2021-B23
STRATIFICATION DETAIL
June 17, 2024
Loan Rate
Asset Ending Scheduled % of Wtd Avg
Loan Rate Range Count Balance Agg.Bal. WAC WAM DSCR
4.00 or Less 60 1,562,026,138.39 99.52 3.1927 71 3.601502
4.01 to 4.25 0 0.00 0.00 0.0000 0 0.000000
4.26 to 4.50 0 0.00 0.00 0.0000 0 0.000000
4.51 to 4.75 1 7,491,021.84 0.48 4.7470 79 1.630000
4.76 to 5.00 0 0.00 0.00 0.0000 0 0.000000
5.01 to 5.25 0 0.00 0.00 0.0000 0 0.000000
5.26 to 5.50 0 0.00 0.00 0.0000 0 0.000000
5.51 to 5.75 0 0.00 0.00 0.0000 0 0.000000
5.76 to 6.00 0 0.00 0.00 0.0000 0 0.000000
6.01 to 6.25 0 0.00 0.00 0.0000 0 0.000000
6.26 to 6.50 0 0.00 0.00 0.0000 0 0.000000
6.51 to 6.75 0 0.00 0.00 0.0000 0 0.000000
6.76 to 7.00 0 0.00 0.00 0.0000 0 0.000000
7.01 or Greater 0 0.00 0.00 0.0000 0 0.000000
Total 61 1,569,517,160.23 100.00 3.2001 71 3.592092
Property Type
Asset Ending Scheduled % of Wtd Avg
Property Type Range Count Balance Agg.Bal. WAC WAM DSCR
Industrial 10 181,998,001.67 11.60 3.3664 78 2.938644
Lodging 5 137,491,021.84 8.76 3.5513 69 3.128643
Mixed Use 11 357,950,000.00 22.81 2.9341 78 4.988243
Multifamily 4 46,955,000.00 2.99 3.7388 79 2.577433
Office 19 703,855,768.44 44.85 3.1267 65 2.679712
Other 0 0.00 0.00 0.0000 0 0.000000
Retail 5 97,260,100.00 6.20 3.4339 79 7.855009
Self Storage 7 44,007,268.28 2.80 3.6616 79 2.640195
Total 61 1,569,517,160.23 100.00 3.2001 71 3.592092
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Benchmark 2021-B23 Mortgage Trust
Commercial Mortgage Pass-Through Certificates, Series 2021-B23
STRATIFICATION DETAIL
June 17, 2024
Remaining Amortization Term
Remaining Amortization Asset Ending Scheduled % of Wtd Avg
Term Range Count Balance Agg.Bal. WAC WAM DSCR
240 Months or Less 39 1,184,095,100.00 75.44 3.1873 69 3.953113
241 to 270 Months 0 0.00 0.00 0.0000 0 0.000000
271 to 300 Months 0 0.00 0.00 0.0000 0 0.000000
301 Months or Greater 22 385,422,060.23 24.56 3.2393 78 2.482963
Total 61 1,569,517,160.23 100.00 3.2001 71 3.592092
Seasoning
Asset Ending Scheduled % of Wtd Avg
Seasoning Range Count Balance Agg.Bal. WAC WAM DSCR
12 Months or Less 0 0.00 0.00 0.0000 0 0.000000
13 to 24 Months 0 0.00 0.00 0.0000 0 0.000000
25 to 36 Months 0 0.00 0.00 0.0000 0 0.000000
37 to 48 Months 55 1,377,917,160.23 87.79 3.1737 73 3.683716
49 Months or Greater 6 191,600,000.00 12.21 3.3898 58 2.933168
Total 61 1,569,517,160.23 100.00 3.2001 71 3.592092
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Benchmark 2021-B23 Mortgage Trust
Commercial Mortgage Pass-Through Certificates, Series 2021-B23
STRATIFICATION DETAIL
June 17, 2024
State
Asset Ending Scheduled % of Wtd Avg
State Range Count Balance Agg.Bal. WAC WAM DSCR
California 9 229,890,259.69 14.65 2.8061 74 2.902583
Florida 5 148,514,948.72 9.46 3.3851 79 2.768034
Idaho 2 53,445,000.00 3.41 3.4528 79 11.610884
Illinois 3 56,051,692.99 3.57 3.5844 79 2.515987
Indiana 1 8,500,000.00 0.54 3.3970 75 2.540000
Louisiana 1 6,795,734.67 0.43 3.4100 79 1.170000
Michigan 2 10,537,635.08 0.67 3.8225 80 1.801227
Minnesota 1 14,000,000.00 0.89 3.9100 79 1.180000
Missouri 1 19,825,000.00 1.26 2.9800 79 3.830000
N/A 6 164,244,577.21 10.46 3.4602 60 2.422608
New Jersey 1 12,309,254.70 0.78 3.1320 79 1.610000
New York 13 283,950,000.00 18.09 2.8823 78 3.293796
North Carolina 1 6,027,803.89 0.38 3.6150 79 2.000000
Oregon 1 75,000,000.00 4.78 3.2994 79 5.620000
Pennsylvania 3 55,100,000.00 3.51 3.5556 79 2.879365
Tennessee 3 57,716,021.84 3.68 3.3952 72 4.123679
Texas 2 86,000,000.00 5.48 3.3925 77 3.519302
Utah 1 58,700,000.00 3.74 3.3770 78 8.470000
Virginia 1 18,070,000.00 1.15 3.1600 79 3.160000
Washington 2 137,615,100.00 8.77 3.0913 33 3.179602
West Virginia 1 3,524,131.44 0.22 3.8100 79 3.680000
Wisconsin 1 63,700,000.00 4.06 3.3100 79 2.610000
Total 61 1,569,517,160.23 100.00 3.2001 71 3.592092
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Benchmark 2021-B23 Mortgage Trust
Commercial Mortgage Pass-Through Certificates, Series 2021-B23
MORTGAGE LOAN DETAIL
June 17, 2024
Prop Paid Beginning Ending Payment Workout Mod
Type Through Gross Interest Principal Scheduled Scheduled Maturity Status Strategy Code
Loan ID OMCR (1) City State Date Coupon Payment Payment Balance Balance Date (2 ) (3 ) (4 )
30506677 10 A2 MU Farmington UT 06/05/2024 3.37700 % 170,697.97 - 58,700,000.00 58,700,000.00 12/05/2030 0 0 0
30506755 11 OF Saint Petersburg FL 06/06/2024 3.42000 % 139,215.79 71,964.90 47,271,913.62 47,199,948.72 02/06/2031 0 0 8
30506694 12 OF Wyomissing PA 06/06/2024 3.50000 % 129,295.83 - 42,900,000.00 42,900,000.00 01/06/2031 0 0 0
30506727 13 A MU Palo Alto CA 06/06/2024 2.32789 % 83,390.01 - 41,600,000.00 41,600,000.00 10/06/2037 0 0 0
30506685 14 A2 OF 06/01/2024 3.39200 % 116,093.94 61,121.16 39,746,100.09 39,684,978.93 01/01/2031 0 0 0
30506701 15 IN Chicago IL 05/31/2024 3.48900 % 106,656.79 - 35,500,000.00 35,500,000.00 01/01/2031 0 0 0
30530087 16 A1 LO Nashville TN 06/06/2024 3.13900 % 94,605.97 - 35,000,000.00 35,000,000.00 03/06/2030 0 0 0
30506775 17 A1 RT Meridian ID 06/05/2024 3.49900 % 105,455.97 - 35,000,000.00 35,000,000.00 02/05/2031 0 0 0
30530114 18 A5 OF 06/06/2024 3.22200 % 94,610.45 - 34,100,000.00 34,100,000.00 04/04/2025 0 0 0
30506605 19 RT Silverdale WA 06/05/2024 3.28200 % 92,175.71 - 32,615,100.00 32,615,100.00 01/05/2031 0 0 0
30506696 1 A1 MU New York NY 06/06/2024 2.40000 % 103,333.33 - 50,000,000.00 50,000,000.00 01/06/2031 0 0 0
30506741 1 A4 MU New York NY 06/06/2024 2.40000 % 41,333.33 - 20,000,000.00 20,000,000.00 01/06/2031 0 0 0
30506742 1 A5 MU New York NY 06/06/2024 2.40000 % 30,586.67 - 14,800,000.00 14,800,000.00 01/06/2031 0 0 0
30506781 22 MU Brooklyn NY 06/06/2024 3.40000 % 58,409.17 - 19,950,000.00 19,950,000.00 02/06/2031 0 0 0
30506693 23 IN Mexico MO 06/06/2024 2.98000 % 50,873.15 - 19,825,000.00 19,825,000.00 01/06/2031 0 0 0
30506721 24 RT Nampa ID 06/05/2024 3.36500 % 53,446.95 - 18,445,000.00 18,445,000.00 01/05/2031 0 0 0
30506638 25 OF Los Angeles CA 06/06/2024 3.50000 % 55,154.17 - 18,300,000.00 18,300,000.00 01/06/2026 0 0 0
30506698 26 OF Richmond VA 06/06/2024 3.16000 % 49,170.48 - 18,070,000.00 18,070,000.00 01/06/2031 0 0 0
30506777 27 OF New York NY 06/06/2024 3.34000 % 47,455.83 - 16,500,000.00 16,500,000.00 02/06/2031 0 0 0
30530112 28 IN Murfreesboro TN 06/06/2024 3.31900 % 43,513.47 - 15,225,000.00 15,225,000.00 01/06/2031 0 0 0
30506697 29 IN Melrose Park IL 06/06/2024 3.70000 % 43,890.16 23,771.44 13,775,464.43 13,751,692.99 01/06/2031 0 0 0
30530111 2 A1 OF Redmond WA 06/06/2024 3.03200 % 274,143.33 - 105,000,000.00 105,000,000.00 01/06/2026 0 0 0
30506725 30 MF Minneapolis MN 06/06/2024 3.91000 % 47,137.22 - 14,000,000.00 14,000,000.00 01/06/2031 0 0 0
30506726 31 MF New York NY 06/06/2024 3.81000 % 43,471.04 - 13,250,000.00 13,250,000.00 01/06/2031 0 0 0
Robbinsville
30506688 32 OF NJ 06/01/2024 3.13200 % 33,261.57 23,548.65 12,332,803.35 12,309,254.70 01/01/2031 0 0 0
Township
30319206 33 MF Kissimmee FL 06/06/2024 3.55400 % 38,453.79 - 12,565,000.00 12,565,000.00 02/06/2031 0 0 0
30506785 34 MU Brooklyn NY 06/06/2024 3.85000 % 41,440.97 - 12,500,000.00 12,500,000.00 02/06/2031 0 0 0
30530109 35 IN San Diego CA 06/06/2024 3.10600 % 31,108.36 22,309.43 11,630,983.03 11,608,673.60 01/06/2031 0 0 0
30506782 36 OF Cambria Heights NY 06/06/2024 3.85000 % 38,125.69 - 11,500,000.00 11,500,000.00 02/06/2031 0 0 0
30506724 37 SS 06/06/2024 3.61000 % 32,251.64 15,335.75 10,374,934.03 10,359,598.28 01/06/2031 0 0 0
30506722 38 OF Hollywood FL 06/06/2024 3.20000 % 25,764.44 - 9,350,000.00 9,350,000.00 01/06/2031 0 0 0
Reports Available at sf.citidirect.com v. 21.09.28 Page 17 of 35 © Copyright 2024 Citigroup

Benchmark 2021-B23 Mortgage Trust
Commercial Mortgage Pass-Through Certificates, Series 2021-B23
MORTGAGE LOAN DETAIL
June 17, 2024
Prop Paid Beginning Ending Payment Workout Mod
Type Through Gross Interest Principal Scheduled Scheduled Maturity Status Strategy Code
Loan ID OMCR (1) City State Date Coupon Payment Payment Balance Balance Date (2 ) (3 ) (4 )
30530113 39 IN Bloomington IN 06/06/2024 3.39700 % 24,864.15 - 8,500,000.00 8,500,000.00 09/06/2030 0 0 0
30319197 3 A1 OF San Francisco CA 06/06/2024 2.76806 % 158,753.41 215,260.28 66,602,107.57 66,386,847.29 01/06/2031 0 0 0
30319198 3 A2 OF San Francisco CA 06/06/2024 2.76806 % 52,917.80 71,753.43 22,200,702.57 22,128,949.14 01/06/2031 0 0 0
30319199 3 A3 OF San Francisco CA 06/06/2024 2.76806 % 10,583.56 14,350.69 4,440,140.35 4,425,789.66 01/06/2031 0 0 0
30319200 3 B OF San Francisco CA 06/06/2024 2.76806 % 131,098.52 - 55,000,000.00 55,000,000.00 01/06/2031 0 0 0
30506723 40 LO Memphis TN 06/01/2024 4.74700 % 30,664.38 10,609.70 7,501,631.54 7,491,021.84 01/01/2031 0 0 0
30506713 41 MF Modesto CA 06/06/2024 3.59600 % 22,109.41 - 7,140,000.00 7,140,000.00 01/06/2031 0 0 0
30506706 42 SS New Orleans LA 06/06/2024 3.41000 % 19,985.54 10,428.70 6,806,163.37 6,795,734.67 01/06/2031 0 0 0
30506751 43 RT Schaumburg IL 06/06/2024 3.84900 % 22,538.03 - 6,800,000.00 6,800,000.00 02/06/2031 0 0 0
30506711 44 IN Hawthorne NY 06/06/2024 3.81800 % 22,192.13 - 6,750,000.00 6,750,000.00 01/06/2031 0 0 0
30319207 45 MU Detroit MI 06/06/2024 3.95000 % 22,789.31 - 6,700,000.00 6,700,000.00 02/06/2031 0 0 0
30506745 46 SS Bristol PA 06/06/2024 3.98000 % 22,276.94 - 6,500,000.00 6,500,000.00 01/06/2031 0 0 0
30506730 47 SS Knightdale NC 06/06/2024 3.61500 % 18,796.99 10,582.03 6,038,385.92 6,027,803.89 01/06/2031 0 0 0
30506684 48 SS Mechanicsburg PA 06/06/2024 3.49000 % 17,130.08 - 5,700,000.00 5,700,000.00 01/06/2031 0 0 0
30506753 49 SS 06/06/2024 3.84000 % 16,864.00 - 5,100,000.00 5,100,000.00 02/06/2031 0 0 0
30530115 4 A1 OF West Palm Beach FL 06/06/2024 3.34003 % 215,709.95 - 75,000,000.00 75,000,000.00 02/06/2031 0 0 0
30506695 50 RT Bradenton FL 06/06/2024 3.69000 % 13,981.00 - 4,400,000.00 4,400,000.00 01/06/2031 0 0 0
30506748 51 IN Troy MI 06/06/2024 3.60000 % 11,917.51 6,722.95 3,844,358.03 3,837,635.08 02/06/2031 0 0 0
Lewisburg and White
30506746 52 SS WV 06/06/2024 3.81000 % 11,578.44 4,983.26 3,529,114.70 3,524,131.44 01/06/2031 0 0 0
Sulphur Springs
Rancho Santa
30506749 53 IN CA 06/06/2024 3.93000 % 11,167.75 - 3,300,000.00 3,300,000.00 02/06/2031 0 0 0
Margarita
30506739 6 A1 MU Portland OR 06/01/2024 3.29940 % 213,086.51 - 75,000,000.00 75,000,000.00 01/01/2031 0 0 0
30530189 7 OF The Woodlands TX 06/06/2024 3.26900 % 185,788.17 - 66,000,000.00 66,000,000.00 02/06/2031 0 0 0
30506744 8 IN Menomonee Falls WI 06/06/2024 3.31000 % 181,562.69 - 63,700,000.00 63,700,000.00 01/06/2031 0 0 0
30319205 A-1-3 MU New York NY 06/06/2024 3.16000 % 74,830.56 - 27,500,000.00 27,500,000.00 03/06/2030 0 0 0
30319201 A13-8 LO 06/05/2024 3.55800 % 181,915.10 - 59,375,000.00 59,375,000.00 03/05/2032 0 0 0
30319202 A15-8 LO 06/05/2024 3.55800 % 47,872.40 - 15,625,000.00 15,625,000.00 03/05/2032 0 0 0
30506758 A2 /A3 MU New York NY 06/06/2024 2.40000 % 64,480.00 - 31,200,000.00 31,200,000.00 01/06/2031 0 0 0
30505245 A-2-1 LO Houston TX 06/06/2024 3.80000 % 65,444.44 - 20,000,000.00 20,000,000.00 03/06/2030 0 0 0
30319203 A-2-4 OF New York NY 06/06/2024 2.69210 % 69,545.92 - 30,000,000.00 30,000,000.00 12/06/2030 0 0 0
30506584 A-4-3 OF New York NY 06/06/2024 2.69210 % 69,545.92 - 30,000,000.00 30,000,000.00 12/06/2030 0 0 0
Reports Available at sf.citidirect.com v. 21.09.28 Page 18 of 35 © Copyright 2024 Citigroup

Benchmark 2021-B23 Mortgage Trust
Commercial Mortgage Pass-Through Certificates, Series 2021-B23
MORTGAGE LOAN DETAIL
Total Count = 61 4,326,513.80 562,742.37 1,570,079,902.60 1,569,517,160.23
June 17, 2024
Reports Available at sf.citidirect.com v. 21.09.28 Page 19 of 35 © Copyright 2024 Citigroup

Benchmark 2021-B23 Mortgage Trust
Commercial Mortgage Pass-Through Certificates, Series 2021-B23
NOI DETAIL
June 17, 2024
Property Ending Preceding Most Most Recent Most Recent
Type Scheduled Fiscal Recent Financial As of Financial Asof
Loan ID OMCR (1) City State Balance Year NOI NOI Start Date End Date
30506677 10 A2 MU Farmington UT 58,700,000.00 18,043,437.42 18,043,437.42 Not Available Not Available
30506755 11 OF Saint Petersburg FL 47,199,948.72 5,149,576.19 1,408,721.55 01/01/2024 03/31/2024
30506694 12 OF Wyomissing PA 42,900,000.00 4,480,614.64 4,480,614.64 Not Available Not Available
30506727 13 A MU Palo Alto CA 41,600,000.00 4,829,919.99 4,829,919.99 Not Available Not Available
30506685 14 A2 OF 39,684,978.93 9,936,968.58 9,936,968.58 Not Available Not Available
30506701 15 IN Chicago IL 35,500,000.00 3,929,427.36 3,929,427.36 Not Available Not Available
30530087 16 A1 LO Nashville TN 35,000,000.00 33,475,285.12 33,475,285.12 Not Available Not Available
30506775 17 A1 RT Meridian ID 35,000,000.00 18,204,972.23 18,204,972.23 Not Available Not Available
30530114 18 A5 OF 34,100,000.00 33,508,485.58 7,659,069.51 01/01/2024 03/31/2024
30506605 19 RT Silverdale WA 32,615,100.00 4,255,124.30 4,255,124.30 Not Available Not Available
30506696 1 A1 MU New York NY 50,000,000.00 15,040,191.92 3,331,244.86 01/01/2024 03/31/2024
30506741 1 A4 MU New York NY 20,000,000.00 15,040,191.92 3,331,244.86 01/01/2024 03/31/2024
30506742 1 A5 MU New York NY 14,800,000.00 15,040,191.92 3,331,244.86 01/01/2024 03/31/2024
30506781 22 MU Brooklyn NY 19,950,000.00 1,960,505.24 1,960,505.24 Not Available Not Available
30506693 23 IN Mexico MO 19,825,000.00 2,519,957.59 2,519,957.59 Not Available Not Available
30506721 24 RT Nampa ID 18,445,000.00 4,381,539.11 4,381,539.11 Not Available Not Available
30506638 25 OF Los Angeles CA 18,300,000.00 2,274,127.73 2,274,127.73 Not Available Not Available
30506698 26 OF Richmond VA 18,070,000.00 2,049,745.11 2,049,745.11 Not Available Not Available
30506777 27 OF New York NY 16,500,000.00 845,566.26 845,566.26 Not Available Not Available
30530112 28 IN Murfreesboro TN 15,225,000.00 1,881,714.50 1,881,714.50 Not Available Not Available
30506697 29 IN Melrose Park IL 13,751,692.99 1,826,083.74 323,796.82 01/01/2024 03/31/2024
30530111 2 A1 OF Redmond WA 105,000,000.00 10,855,066.52 3,161,211.56 01/01/2024 03/31/2024
30506725 30 MF Minneapolis MN 14,000,000.00 765,268.55 673,009.45 Not Available Not Available
30506726 31 MF New York NY 13,250,000.00 1,052,709.17 1,547,183.96 Not Available Not Available
30506688 32 OF Robbinsville Township NJ 12,309,254.70 1,106,283.60 1,106,283.60 Not Available Not Available
30319206 33 MF Kissimmee FL 12,565,000.00 1,601,947.98 1,601,947.98 Not Available Not Available
30506785 34 MU Brooklyn NY 12,500,000.00 672,218.01 672,218.01 Not Available Not Available
30530109 35 IN San Diego CA 11,608,673.60 3,221,998.35 3,221,998.35 Not Available Not Available
30506782 36 OF Cambria Heights NY 11,500,000.00 987,593.27 987,593.27 Not Available Not Available
30506724 37 SS 10,359,598.28 1,228,804.94 1,228,804.94 Not Available Not Available
30506722 38 OF Hollywood FL 9,350,000.00 1,264,475.57 1,198,201.87 Not Available Not Available
30530113 39 IN Bloomington IN 8,500,000.00 761,361.21 761,361.21 Not Available Not Available
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Benchmark 2021-B23 Mortgage Trust
Commercial Mortgage Pass-Through Certificates, Series 2021-B23
NOI DETAIL
June 17, 2024
Property Ending Preceding Most Most Recent Most Recent
Type Scheduled Fiscal Recent Financial As of Financial Asof
Loan ID OMCR (1) City State Balance Year NOI NOI Start Date End Date
30319197 3 A1 OF San Francisco CA 66,386,847.29 13,541,467.49 13,697,676.40 04/01/2023 03/31/2024
30319198 3 A2 OF San Francisco CA 22,128,949.14 13,541,467.49 13,697,676.40 04/01/2023 03/31/2024
30319199 3 A3 OF San Francisco CA 4,425,789.66 13,541,467.49 13,697,676.40 04/01/2023 03/31/2024
30319200 3 B OF San Francisco CA 55,000,000.00 13,541,467.49 13,697,676.40 04/01/2023 03/31/2024
30506723 40 LO Memphis TN 7,491,021.84 993,559.80 993,559.80 Not Available Not Available
30506713 41 MF Modesto CA 7,140,000.00 839,304.06 839,304.06 Not Available Not Available
30506706 42 SS New Orleans LA 6,795,734.67 282,405.93 324,109.80 04/01/2023 03/31/2024
30506751 43 RT Schaumburg IL 6,800,000.00 469,956.85 469,956.85 Not Available Not Available
30506711 44 IN Hawthorne NY 6,750,000.00 626,545.38 626,545.38 Not Available Not Available
30319207 45 MU Detroit MI 6,700,000.00 436,171.16 436,171.16 Not Available Not Available
30506745 46 SS Bristol PA 6,500,000.00 791,398.67 791,398.67 Not Available Not Available
30506730 47 SS Knightdale NC 6,027,803.89 712,675.74 712,675.74 Not Available Not Available
30506684 48 SS Mechanicsburg PA 5,700,000.00 651,998.37 651,998.37 Not Available Not Available
30506753 49 SS 5,100,000.00 511,243.19 511,243.19 Not Available Not Available
30530115 4 A1 OF West Palm Beach FL 75,000,000.00 18,409,692.60 18,409,692.60 Not Available Not Available
30506695 50 RT Bradenton FL 4,400,000.00 349,100.72 80,438.20 01/01/2024 03/31/2024
30506748 51 IN Troy MI 3,837,635.08 534,975.94 534,975.94 Not Available Not Available
Lewisburg and White Sulphur
30506746 52 SS WV 3,524,131.44 509,708.99 509,708.99 Not Available Not Available
Springs
30506749 53 IN Rancho Santa Margarita CA 3,300,000.00 322,705.81 322,705.81 Not Available Not Available
30506739 6 A1 MU Portland OR 75,000,000.00 14,913,886.98 14,913,886.98 Not Available Not Available
30530189 7 OF The Woodlands TX 66,000,000.00 7,822,428.60 1,997,456.64 01/01/2024 03/31/2024
30506744 8 IN Menomonee Falls WI 63,700,000.00 5,669,039.56 1,407,904.22 01/01/2024 03/31/2024
30319205 A-1-3 MU New York NY 27,500,000.00 49,917,843.00 49,917,843.00 Not Available Not Available
30319201 A13-8 LO 59,375,000.00 280,299,853.00 287,453,731.00 Not Available Not Available
30319202 A15-8 LO 15,625,000.00 280,299,853.00 287,453,731.00 Not Available Not Available
30506758 A2 /A3 MU New York NY 31,200,000.00 15,040,191.92 3,331,244.86 01/01/2024 03/31/2024
30505245 A-2-1 LO Houston TX 20,000,000.00 9,646,289.32 9,646,289.32 Not Available Not Available
30319203 A-2-4 OF New York NY 30,000,000.00 102,450,910.00 102,450,910.00 Not Available Not Available
30506584 A-4-3 OF New York NY 30,000,000.00 102,450,910.00 102,450,910.00 Not Available Not Available
Total Count = 61 1,569,517,160.23 1,171,309,872.17 1,090,643,139.02
Reports Available at sf.citidirect.com v. 21.09.28 Page 21 of 35 © Copyright 2024 Citigroup

Benchmark 2021-B23 Mortgage Trust
Commercial Mortgage Pass-Through Certificates, Series 2021-B23
DELINQUENCY LOAN DETAIL
June 17, 2024
Actual Paid Current P&I Total P&I Cumulative Other Expense Payment Workout Most Recent
Principal Through Advances Advances Accrued Unpaid Advances Status Strategy Special Serv Foreclosure Bankruptcy REO
Loan ID OMCR Balance Date (Net of ASER) Outstanding Interest Advances Outstanding (2 ) (3 ) Transfer Date Date Date Date
No Loans with Delinquency Activity to Report.
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Benchmark 2021-B23 Mortgage Trust
Commercial Mortgage Pass-Through Certificates, Series 2021-B23
COLLATERAL PERFORMANCE - DELINQUENCY AND LOAN STATUS DETAIL
June 17, 2024
Delinquent
(Does not include loans in Bankruptcy, Foreclosure, or REO)
30 Day 60 Day 90 Day 120 + Day Bankruptcy Foreclosure REO
Distribution
Date Count Balance Count Balance Count Balance Count Balance Count Balance Count Balance Count Balance
0 0 0 0 0 0 0 0 0 0 0 0 0 0
06/17/2024
0.0 % 0.0 % 0.0 % 0.0 % 0.0 % 0.0 % 0.0 % 0.0 % 0.0 % 0.0 % 0.0 % 0.0 % 0.0 % 0.0 %
1 13,775,464 0 0 0 0 0 0 0 0 0 0 0 0
05/17/2024
1.6 % 0.0 % 0.0 % 0.0 % 0.0 % 0.0 % 0.0 % 0.0 % 0.0 % 0.0 % 0.0 % 0.0 % 0.0 % 0.0 %
0 0 0 0 0 0 0 0 0 0 0 0 0 0
04/17/2024
0.0 % 0.0 % 0.0 % 0.0 % 0.0 % 0.0 % 0.0 % 0.0 % 0.0 % 0.0 % 0.0 % 0.0 % 0.0 % 0.0 %
0 0 0 0 0 0 0 0 0 0 0 0 0 0
03/15/2024
0.0 % 0.0 % 0.0 % 0.0 % 0.0 % 0.0 % 0.0 % 0.0 % 0.0 % 0.0 % 0.0 % 0.0 % 0.0 % 0.0 %
0 0 0 0 0 0 0 0 0 0 0 0 0 0
02/16/2024
0.0 % 0.0 % 0.0 % 0.0 % 0.0 % 0.0 % 0.0 % 0.0 % 0.0 % 0.0 % 0.0 % 0.0 % 0.0 % 0.0 %
0 0 0 0 0 0 0 0 0 0 0 0 0 0
01/18/2024
0.0 % 0.0 % 0.0 % 0.0 % 0.0 % 0.0 % 0.0 % 0.0 % 0.0 % 0.0 % 0.0 % 0.0 % 0.0 % 0.0 %
0 0 0 0 0 0 0 0 0 0 0 0 0 0
12/15/2023
0.0 % 0.0 % 0.0 % 0.0 % 0.0 % 0.0 % 0.0 % 0.0 % 0.0 % 0.0 % 0.0 % 0.0 % 0.0 % 0.0 %
0 0 0 0 0 0 0 0 0 0 0 0 0 0
11/17/2023
0.0 % 0.0 % 0.0 % 0.0 % 0.0 % 0.0 % 0.0 % 0.0 % 0.0 % 0.0 % 0.0 % 0.0 % 0.0 % 0.0 %
0 0 0 0 0 0 0 0 0 0 0 0 0 0
10/17/2023
0.0 % 0.0 % 0.0 % 0.0 % 0.0 % 0.0 % 0.0 % 0.0 % 0.0 % 0.0 % 0.0 % 0.0 % 0.0 % 0.0 %
0 0 0 0 0 0 0 0 0 0 0 0 0 0
09/15/2023
0.0 % 0.0 % 0.0 % 0.0 % 0.0 % 0.0 % 0.0 % 0.0 % 0.0 % 0.0 % 0.0 % 0.0 % 0.0 % 0.0 %
0 0 0 0 0 0 0 0 0 0 0 0 0 0
08/17/2023
0.0 % 0.0 % 0.0 % 0.0 % 0.0 % 0.0 % 0.0 % 0.0 % 0.0 % 0.0 % 0.0 % 0.0 % 0.0 % 0.0 %
0 0 0 0 0 0 0 0 0 0 0 0 0 0
07/17/2023
0.0 % 0.0 % 0.0 % 0.0 % 0.0 % 0.0 % 0.0 % 0.0 % 0.0 % 0.0 % 0.0 % 0.0 % 0.0 % 0.0 %
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Benchmark 2021-B23 Mortgage Trust
Commercial Mortgage Pass-Through Certificates, Series 2021-B23
APPRAISAL REDUCTION DETAIL
June 17, 2024
Beginning Ending Appraisal Appraisal Most Recent Cumulative
Loan ID OMCR Property Name Scheduled Balance Scheduled Balance Reduction Amount Reduction Date ASER Amount ASER Amount
No Loans with Appraisal Reduction Activity.
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Benchmark 2021-B23 Mortgage Trust
Commercial Mortgage Pass-Through Certificates, Series 2021-B23
HISTORICAL APPRAISAL REDUCTION DETAIL
June 17, 2024
Distribution Beginning Ending Appraisal Appraisal Most Recent Cumulative
Date Loan ID OMCR Property Name Scheduled Balance Scheduled Balance Reduction Amount Reduction Date ASER Amount ASER Amount
No Loans with Appraisal Reduction Activity.
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Benchmark 2021-B23 Mortgage Trust
Commercial Mortgage Pass-Through Certificates, Series 2021-B23
LOAN MODIFICATION DETAIL
June 17, 2024
Modification Modification
Loan ID OMCR Property Name Date Code (4)
30506755 11 First Central Tower 09/19/2022 8
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Benchmark 2021-B23 Mortgage Trust
Commercial Mortgage Pass-Through Certificates, Series 2021-B23
HISTORICAL LOAN MODIFICATION DETAIL
June 17, 2024
Distribution Modification Modification
Date Loan ID OMCR Property Name Date Code (4)
06/17/2024 30506755 11 First Central Tower 09/19/2022 8
05/17/2024 30506755 11 First Central Tower 09/19/2022 8
04/17/2024 30506755 11 First Central Tower 09/19/2022 8
03/15/2024 30506755 11 First Central Tower 09/19/2022 8
02/16/2024 30506755 11 First Central Tower 09/19/2022 8
01/18/2024 30506755 11 First Central Tower 09/19/2022 8
12/15/2023 30506755 11 First Central Tower 09/19/2022 8
11/17/2023 30506755 11 First Central Tower 09/19/2022 8
10/17/2023 30506755 11 First Central Tower 09/19/2022 8
09/15/2023 30506755 11 First Central Tower 09/19/2022 8
08/17/2023 30506755 11 First Central Tower 09/19/2022 8
07/17/2023 30506755 11 First Central Tower 09/19/2022 8
06/16/2023 30506755 11 First Central Tower 09/19/2022 8
05/17/2023 30506755 11 First Central Tower 09/19/2022 8
04/17/2023 30506755 11 First Central Tower 09/19/2022 8
03/17/2023 30506755 11 First Central Tower 09/19/2022 8
02/17/2023 30506755 11 First Central Tower 09/19/2022 8
01/18/2023 30506755 11 First Central Tower 09/19/2022 8
07/16/2021 30530111 2 A1 Millennium Corporate Park 12/17/2020 8
06/17/2021 30530111 2 A1 Millennium Corporate Park 12/17/2020 8
04/16/2021 30530111 2 A1 Millennium Corporate Park 12/17/2020 8
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Benchmark 2021-B23 Mortgage Trust
Commercial Mortgage Pass-Through Certificates, Series 2021-B23
SPECIALLY SERVICED LOAN DETAIL
June 17, 2024
Special Servicing Ending Ending Most Most Recent Most Recent Most Recent
Workout Fee Amount Scheduled Actual Recent Valuation Special Servicer Master Servicer
Loan ID OMCR Strategy (3) Plus Adjustments Balance Balance Value Date Transfer Date Return Date
No Loans Specially Serviced to Report.
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Benchmark 2021-B23 Mortgage Trust
Commercial Mortgage Pass-Through Certificates, Series 2021-B23
HISTORICAL SPECIALLY SERVICED LOANS
June 17, 2024
Special Servicing Ending Ending Most Most Recent Most Recent Most Recent
Distribution Workout Fee Amount Scheduled Actual Recent Valuation Special Servicer Master Servicer
Date Loan ID OMCR Strategy (3) Plus Adjustments Balance Balance Value Date Transfer Date Return Date
No Loans Specially Serviced to Report.
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Benchmark 2021-B23 Mortgage Trust
Commercial Mortgage Pass-Through Certificates, Series 2021-B23
UNSCHEDULED PRINCIPAL DETAIL
June 17, 2024
Liquidation / Liquid / Prepay Principal Principal Prepayment Interest Prepayment Yield Maintenance
Loan ID OMCR Prepayment Date Code (5) Collections Adjustments Excess / (Shortfall) Penalties (PPP) Penalties (YM)
No Loans with Unscheduled Principal Activity to Report.
Reports Available at sf.citidirect.com v. 21.09.28 Page 30 of 35 © Copyright 2024 Citigroup

Benchmark 2021-B23 Mortgage Trust
Commercial Mortgage Pass-Through Certificates, Series 2021-B23
HISTORICAL UNSCHEDULED PRINCIPAL DETAIL
June 17, 2024
Distribution Liquidation / Liquid / Prepay Principal Principal Prepayment Interest Prepayment Yield Maintenance
Date Loan ID OMCR Prepayment Date Code (5) Collections Adjustments Excess / (Shortfall) Penalties (PPP) Penalties (YM)
No Loans with Unscheduled Principal Activity to Report.
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Benchmark 2021-B23 Mortgage Trust
Commercial Mortgage Pass-Through Certificates, Series 2021-B23
LIQUIDATED LOAN DETAIL
June 17, 2024
Loss with
Cumulative Cumulative
Beginning Most Liquidation Net Net Realized Date of
Scheduled Recent Sales Proceeds Liquidation Proceeds Loss to Current Current
Loan ID OMCR Balance Value Price Received Expense Available Trust Adj. to Loan Adj. to Loan Adj. to Loan Adj. to Trust
No Loans liquidated to Report.
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Benchmark 2021-B23 Mortgage Trust
Commercial Mortgage Pass-Through Certificates, Series 2021-B23 June 17, 2024
HISTORICAL LIQUIDATED LOAN
Beginning Most Liquidation Net Net Realized Date of Loss with
Distribution Scheduled Recent Sales Proceeds Liquidation Proceeds Loss to Current Current Cumulative Cumulative
Date Loan ID OMCR Balance Value Price Received Expense Available Trust Adj. to Loan Adj. to Loan Adj. to Loan Adj. to Trust
No Loans liquidated to Report.
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Benchmark 2021-B23 Mortgage Trust
Commercial Mortgage Pass-Through Certificates, Series 2021-B23 June 17, 2024
CREFC® INVESTOR REPORTING PACKAGE LEGENDS
1|CREFC Investor Reporting Package Legends
Property Type (1) Workout Strategy (3) Liquidation/Prepayment Code (5)
MF Multifamily 1 Modification 1 Partial Liquidation (Curtailment)
RT Retail 2 Foreclosure 2 Payoff Prior To Maturity
HC HealthCare 3 Bankruptcy 3 Disposition / Liquidation
IN Industrial 4 Extension 4 Repurchase / Substitution
MH Mobile Home Park 5 Note Sale 5 Full Payoff At Maturity
OF Office 6 DPO 6 DPO
MU Mixed Use 7 REO 7 Liquidation prior to 7/1/2006
LO Lodging 8 Resolved 8 Payoff With Penalty
SS Self Storage 9 Pending Return to Master Servicer 9 Payoff With Yield Maintenance
SE Securities 10 Deed In Lieu of Foreclosure 10 Curtailment With Penalty
CH Cooperative Housing 11 Full Payoff 11 Curtailment With Yield Maintenance
ZZ Missing Information 12 Reps and Warranties
SF SF 13 TBD
WH Warehouse 98 Other
OT Other
Modification Code (4)
Payment Status of Loan (2)
1 Maturity Date Extension
A In Grace Period 2 Amortization Change
B Late, but less than 30 Days 3 Principal Write-Off
0 Current 4 Blank (formerly Combination)
1 30-59 Days Delinquent 5 Temporary Rate Reduction
2 60-89 Days Delinquent 6 Capitalization of Interest
3 90-120 Days Delinquent 7 Capitalization of Taxes
4 Performing Matured Balloon 8 Other
5 Non Performing Matured Balloon 9 Combination
6 121+ Days Delinquent 10 Forbearance
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Benchmark 2021-B23 Mortgage Trust
Commercial Mortgage Pass-Through Certificates, Series 2021-B23 June 17, 2024
NOTES
No Notes available for this deal at this time.
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