Kilambi News
Monday, October 19, 2026

BBCMS Mortgage Trust 2023-C21

Sunday, October 18, 2026

Tranches, pool and monthly delinquency indicator for BBCMS Mortgage Trust 2023-C21.

Data as of loan data through September 2026; ratings as held in the dataset at build

← Deal index · CMBS market

Current pool balance
$671.7M (September 2026)
Original pool balance
$679.3M
Loans at issuance
25
Closing date
2023-10-05
Weighted average coupon at issuance
6.31%
Weighted average LTV at issuance
18.9%
30+ delinquent (latest)
2.12%
Realized stress score
56.5
Net rating change since issuance
+0.00 notches

Tranches

ClassOriginal balanceCredit support (computed)CouponCUSIPFitchKBRAS&PMoody'sDBRS
A-1$2.0M99.72%6.050% fixed05553WAA7PIFWRNRnot yet reportednot yet reported
A-2$100.1M85.51%6.506% floating (WAC)05553WAB5AAAAAAAAA (sf)not yet reportednot yet reported
A-3$59.7M77.04%6.506% floating (WAC)05553WAC3AAAAAAAAA (sf)not yet reportednot yet reported
A-4$15.5M74.84%not yet reportednot yet reportednot yet reportednot yet reportednot yet reportednot yet reportednot yet reported
A-5$310.6M30.77%6.000% floating (WAC)05553WAE9AAAAAAAAA (sf)not yet reportednot yet reported
A-6$10.0M29.35%not yet reportednot yet reportednot yet reportednot yet reportednot yet reportednot yet reportednot yet reported
A-S$84.1M17.43%6.506% floating (WAC)05553WAH2AAAAAAAA- (sf)not yet reportednot yet reported
A-SB$3.1M16.99%6.506% floating (WAC)05553WAF6AAAAAAAAA (sf)not yet reportednot yet reported
B$29.7M12.77%6.506% floating (WAC)05553WAJ8AA-AA-NRnot yet reportednot yet reported
C$24.6M9.28%6.506% floating (WAC)05553WAK5A-A-NRnot yet reportednot yet reported
D-RR$7.6M8.19%6.506% floating (WAC)05553WAM1not yet reportednot yet reportednot yet reportednot yet reportednot yet reported
E-RR$13.6M6.26%6.506% floating (WAC)05553WAP4not yet reportednot yet reportednot yet reportednot yet reportednot yet reported
F-RR$12.7M4.46%6.506% floating (WAC)05553WAR0not yet reportednot yet reportednot yet reportednot yet reportednot yet reported
G-RR$8.5M3.25%6.506% floating (WAC)05553WAT6not yet reportednot yet reportednot yet reportednot yet reportednot yet reported
H-RR$22.9M0.00%6.506% floating (WAC)05553WAV1not yet reportednot yet reportednot yet reportednot yet reportednot yet reported
Rnot yet reportednot yet reportednot yet reported05553WAY5not yet reportednot yet reportednot yet reportednot yet reportednot yet reported
Snot yet reportednot yet reportednot yet reported05553WAX7not yet reportednot yet reportednot yet reportednot yet reportednot yet reported
X-A$475.5MInterest only0.332% floating05553WAG4AAAAAAAAA (sf)not yet reportednot yet reported

Credit support is computed from the class stack order in the prospectus: the share of the deal's principal balance in classes junior to the class. Interest-only classes carry a notional balance and no principal support figure. Ratings are the latest held in the dataset for each class and agency; NR means the agency shows the class as not rated, WR that the rating was withdrawn, PIF that the class has been paid in full. Any other status value is shown exactly as the agency reports it. A + after a CUSIP marks a class with companion CUSIPs in the dataset.

Pool at issuance

Loans25
Original loan balance$679.5M
Weighted average coupon6.31%
Weighted average LTV18.9%
Median loan LTV13.2%
Full-term interest only (share of balance)92.1%
Balloon loans (share of balance)100.0%
Largest loan (share of balance)9.6%
Five largest loans (share of balance)44.9%
Occupancy at issuance (weighted average)94.3%

Realized outcomes

Months reported36
Peak 30+ delinquency5.10% (March 2026)
Ever severe (share of original balance)2.10%
Ever modified (share of original balance)0.00%
Past scheduled maturity (share of original balance)0.00%
Non-performing matured (share of original balance)39.03%
Maximum servicer advances (share of balance)0.29%
Median DSCR, first year1.98
Median DSCR, latest1.91
Realized stress score56.5

Property types

Property typeOriginal balanceShare of pool
Retail$232.5M34.2%
Office$160.3M23.6%
Mixed use$113.2M16.7%
Lodging$70.8M10.4%
Industrial$50.2M7.4%
Self storage$23.4M3.5%
Multiple property types$20.0M2.9%
Warehouse$9.1M1.3%

Property type is reported for 100.0% of the pool balance; shares are of the full pool.

Largest loans

PropertyLocationOriginal balanceShare of poolCouponOriginated
["Belpre V Cancer Center - Belpre, OH", "Glendale MOB - Farmington Hills, MI", "1600 State Street", "Palm Valley Medical Plaza - Goodyear, AZ", "Eastside Cancer Institute - Greenville, SC", "Aurora Healthcare Center - Waterford, WI", "Beaumont Medical Center - Warren, MI", "Millennium Eye Care - Freehold, NJ", "757 Franciscan Medical - Munster, IN", "Vascular Surgery Associates - Tallahassee, FL", "Decatur Medical Office Building - Decatur, GA", "Aurora Healthcare Center - Wautoma, WI", "Greenfield Medical Plaza - Gilbert, AZ", "Swedish American MOB - Roscoe, IL", "West Michigan Surgery Center - Big Rapids, MI", "UPMC - Sir Thomas Court - Harrisburg, PA", "Eastern Carolina ENT - Greenville, NC", "Lancaster Medical Arts MOB - Lancaster", "UPMC - Fisher Road - Mechanicsburg, PA", "Kingwood Executive Center - Kingwood, TX", "Pensacola Nephrology MOB - Pensacola, FL", "Lee Memorial Health System - Fort Myers, FL", "Greenville Health System - Greenville, SC", "UPMC - Chambers Hill - Harrisburg, PA", "Rockwall Medical Plaza - Rockwall, TX", "Pioneer Spine Sports - West Springfield", "Women's Healthcare Group MOB - York, PA", "OrthoOne Hilliard - Hilliard, OH", "St Peter's - Albany, NY - 5 Palisades", "Metropolitan Eye Lakeshore Surgery - St. Clair Shores, MI", "Crittenton MOB - Washington Township, MI", "Surgery Center of Temple - Temple, TX", "RAI Care Center-Clearwater, FL", "Medical Center V - Peoria, AZ", "MetroHealth Buckeye Health - Cleveland, OH", "South Douglas MOB - Midwest City, OK", "Crittenton MOB - Sterling Heights, MI", "SPHP MOB, Albany, NY", "Atlanta Gastroenterology Associates - Lawrenceville, GA", "Bone and Joint Specialists - Merrillville, IN", "1550 State Street", "St. Peter's - Albany, NY - 2 Palisades", "St Lukes Heart Vascular Center - East Stroudsburg", "Naidu Clinic - Odessa, TX", "Aurora Healthcare Center - Kiel, WI", "Florida Medical Heartcare - Tampa, FL", "Florida Medical Wesley Chapel - Tampa, FL", "Aurora Healthcare Center - Green Bay, WI", "Pioneer Spine Sports - Springfield", "Center for Advanced Dermatology - Lakewood, CO", "Pioneer Spine Sports - Northampton", "Florida Medical Clinic - Tampa, FL", "DaVita Dialysis - Hudson, FL", "St Peter's - Albany, NY - 4 Palisades", "5825 Shoreview Lane North", "Florida Medical Tampa Palms - Tampa, FL", "Fresenius Medical Care - Winfield, AL", "Florida Medical Somerset - Tampa, FL", "St. Peter's - Troy, NY - 2 New Hampshire", "DaVita Bay Breeze Dialysis Center - Largo, FL", "Aurora Healthcare Center - Greenville, WI", "1586 State Street"]["Belpre", "Farmington Hills", "Salem", "Goodyear", "Greenville", "Waterford", "Warren", "Freehold", "Munster", "Tallahassee", "Decatur", "Wautoma", "Gilbert", "Roscoe", "Big Rapids", "Harrisburg", "Greenville", "Lancaster", "Mechanicsburg", "Kingwood", "Pensacola", "Fort Myers", "Greenville", "Harrisburg", "Rockwall", "West Springfield", "York", "Hilliard", "Albany", "St. Clair Shores", "Washington Township", "Temple", "Clearwater", "Peoria", "Cleveland", "Midwest City", "Sterling Heights", "Albany", "Lawrenceville", "Merrillville", "Salem", "Albany", "East Stroudsburg", "Odessa", "Kiel", "Tampa", "Wesley Chapel", "Suamico", "Springfield", "Lakewood", "Northampton", "Tampa", "Hudson", "Albany", "Keizer", "Tampa", "Winfield", "Tampa", "Troy", "Largo", "Greenville", "Salem"], ["OH", "MI", "OR", "AZ", "SC", "WI", "MI", "NJ", "IN", "FL", "GA", "WI", "AZ", "IL", "MI", "PA", "NC", "PA", "PA", "TX", "FL", "FL", "SC", "PA", "TX", "MA", "PA", "OH", "NY", "MI", "MI", "TX", "FL", "AZ", "OH", "OK", "MI", "NY", "GA", "IN", "OR", "NY", "PA", "TX", "WI", "FL", "FL", "WI", "MA", "CO", "MA", "FL", "FL", "NY", "OR", "FL", "AL", "FL", "NY", "FL", "WI", "OR"]$65.0M9.6%6.45%2023
["Northwoods Marketplace", "The Centrum", "Lawton Marketplace", "Carlisle Crossing", "Southway Shopping Center", "Parkway Centre South", "Houma Crossing", "North Lake Square", "RTL Multi-Tenant Portfolio (Liberty Crossing)", "Owensboro Town Center", "Harbor Town Center", "Lord Salisbury Center", "Terrell Mill Village", "The Ridge at Turtle Creek", "Nordstrom Rack", "Ventura Place", "Quail Springs", "Wallace Commons", "Waterford Park South", "Evergreen Marketplace", "Derby Marketplace", "Stoneridge Village", "FreshThyme & DSW", "Crossroads Annex", "Tellico Village", "Walmart Neighborhood Market", "PetSmart & Old Navy", "Sutters Creek", "Mattress Firm & Panera Bread"]["North Charleston", "Pineville", "Lawton", "Carlisle", "Houston", "Grove City", "Houma", "Gainesville", "Rowlett", "Owensboro", "Manitowoc", "Salisbury", "Marietta", "Hattiesburg", "Tampa", "Albuquerque", "Oklahoma City", "Salisbury", "Clarksville", "Evergreen Park", "Derby", "Jefferson City", "Fort Wayne", "Layfette", "Loudon", "Summerville", "Reynoldsburg", "Rocky Mount", "Elyria"], ["SC", "NC", "OK", "PA", "TX", "OH", "LA", "GA", "TX", "KY", "WI", "MD", "GA", "MS", "FL", "NM", "OK", "NC", "IN", "IL", "KS", "MO", "IN", "LA", "TN", "SC", "OH", "NC", "OH"]$62.5M9.2%6.45%2023
Fashion Valley MallSan Diego, CA$62.5M9.2%5.73%2023
["Cipriani NYC Portfolio", "Cipriani Wall Street"]["New York", "New York"], ["NY", "NY"]$60.0M8.8%8.60%2023
["Rhino Retail Portfolio - Tranche 2", "15900, 15920, 15930, 15940, 15962-15976, 15982-15996, 16002-16080, and 16100 SW Tualatin-Sherwood Rd", "2001, 2055, 2073, 2091, 2121, 2185, 2237, 2263, 2295 W. Cleveland Ave", "9333-9481 and 9499-9523 Silverdale Way NW", "4350 SE Mile Hill Drive and 1713-1762 Village Lane SE", "360-442 Falls Road", "2105 W Williams Avenue"]["Turlock", "Sherwood", "Madera", "Silverdale", "Port Orchard", "Grafton", "Fallon"], ["CA", "OR", "CA", "WA", "WA", "WI", "NV"]$55.0M8.1%6.98%2023

Delinquency and stress indicator

0%4%7%11%15%202420252026

▬ 30+ days delinquent · ▬ Distressed (90+, foreclosure, REO, non-performing matured)

Monthly shares of the deal's reported balance, from the deal indicator series in the dataset. Months in which fewer than half of the reported loans carry a delinquency status code are not plotted.

Ratings

Classes with a CUSIP16 of 18
Classes with a current rating in the dataset9 of 18
Net rating change since issuance+0.00 notches (balance-weighted)
Delinquency threshold crossedNot crossed in the dataset
First downgradeNone recorded

Sources: SEC Form ABS-EE asset-level reports, Form 10-D distribution reports and the deal prospectus; rating histories published under SEC Rule 17g-7(b) and agency releases. Definitions are in the methods note on the market page.