KBRA Downgrades Two Ratings and Affirms Four Ratings for GSMS 2015-GC30
11 Sep 2026 | New York
KBRA downgrades the ratings of two classes of certificates and affirms four ratings for GSMS 2015-GC30, a CMBS conduit transaction with an outstanding principal certificate balance of $238.0 million. The transaction collateral has been reduced to six assets with an aggregate balance of $241.3 million, from 88 loans totaling $1.2 billion at securitization. The ratings actions are based on our identification of all remaining assets as KBRA Loans of Concern (K-LOCs), our estimated losses of $110.1 million (which, if realized, would impact the class D certificates and below) and corresponding recoveries; realized losses totaling $5.0 million, which were allocated to the non-rated class G certificates; and cumulative interest shortfalls of $8.7 million affecting classes D and below.
The variance between the total balance of the certificates and the aggregate loan balance is due to the remainder of a $4.1 million servicer holdback that was effectuated in May 2025 – the servicer expects the remaining holdback amount, approximately $3.4 million, will likely be released to the trust following the near-term liquidation of the Bank of America Plaza REO asset (17.7% of the pool balance).
As of the August 2026 remittance period, all remaining assets in the pool are specially serviced, including one REO asset (17.7%). Two assets (26.7%) have been determined to be non-recoverable by the servicer, including the REO asset. Of the six remaining assets in the pool, five (95.3%) have estimated losses. The remaining assets are highlighted below:
Selig Office Portfolio ($123.0 million, 51.0%, Matured Non-Performing)
- The loan is collateralized by nine office properties in Seattle, Washington totaling 1.6 million sf. The properties range in size from 35,432 sf to 447,792 sf and seven were developed by an affiliate of the sponsor, Martin Selig Real Estate, between 1971 and 1986.
- The loan transferred to the special servicer in November 2024 after the borrower indicated it would not be able to pay off or refinance the loan by the April 2025 maturity. A receiver was appointed and a forbearance was executed through January 6, 2026. According to August 2026 servicer commentary, a modification and extension agreement was in the process of being finalized.
- According to the November 2025 rent roll, the portfolio was 58.2% leased, down from 67.5% at last review and down from 92.4% at issuance. Lease rollover through YE 2026, inclusive of MTM leases, represented 17.9% of total base rent. The servicer-reported DSC is 1.57x (YTD September 2025). An appraisal report dated August 2025 indicates a valuation of $341.2 million ($210 per sf), which is 37.3% below the $544.5 million ($334 per sf) value at issuance. As a result, an ARA of $19.8 million was assigned to the pari-passu note in this transaction in October 2025.
- KBRA's analysis resulted in an estimated loss of $167.9 million (44.3% estimated loss severity) on a whole loan balance of $379.1 million, of which $54.5 million of the estimated loss is allocated to this transaction. The estimated loss is based on a KBRA liquidation value of $212.2 million ($130 per sf) and projected total exposure of $380.1 million. The liquidation value is derived from an income capitalization approach using a KNCF of $19.9 million and a blended capitalization rate of 9.38%.
Bank of America Plaza ($42.8 million, 17.7%, REO)
- The asset of the trust is a 30-story 742,244 sf Class-A office building located in downtown St. Louis, Missouri.
- The loan transferred to the special servicer in May 2023 due to imminent default caused by a decline in occupancy and deteriorating net cash flow. The servicer filed for foreclosure and took title to the asset in July 2025. The asset was sold at a June 2026 auction, and the sale was expected to close in August 2026.
- The asset was deemed non-recoverable in May 2024, and cumulative non-recoverable interest totaled $2.2 million. KBRA’s analysis resulted in an estimated loss of $36.2 million (84.6% estimated loss severity), which is based on a liquidation value that aligns with the auction sales price and projected total exposure of $45.8 million.
311 California Street ($25.0 million, 10.4%, Matured Performing)
- The loan is collateralized by an 11-story 89,196 sf Class-B mid-rise office building located in the CBD of San Francisco, California.
- The loan transferred to the special servicer in April 2025 due to maturity default. The servicer and borrower negotiated a forbearance agreement from April 2025 through July 2026, which had a nine-month extension option. The borrower elected to use its option to extend the forbearance period through April 2027. According to the March 2026 rent roll, including additional leasing updates, the property was 88.9% leased.
- An updated April 2026 appraisal valued the property at $35.6 million ($399 per sf), which was 30.9% below the $51.5 million ($577 per sf) appraisal value at issuance. KBRA’s analysis resulted in an estimated loss of $3.8 million (15.0% estimated loss severity). The estimated loss is based on a liquidation value of $23.1 million ($259 per sf) and projected total exposure of $26.8 million. The liquidation value is derived from an income capitalization approach utilizing a KNCF of $2.0 million and a capitalization rate of 8.50%.
The remaining three assets account for 20.9% of the pool:
- Hilton Scotts Valley ($21.5 million, 8.9%, Matured Non-Performing) is collateralized by a 174-key full-service hotel in Santa Cruz, California, 70 miles south of San Francisco that operates under a Hilton flag through a franchise agreement scheduled to expire in March 2035. The loan transferred to special servicing in March 2025 due to maturity default. The borrower has previously attempted to sell the property; however, a receiver was appointed in June 2026 to take over sale marketing efforts. The loan was deemed non-recoverable by the servicer in September 2025, and cumulative non-recoverable interest totals $682,054. An updated April 2026 appraisal valued the asset at $25.5 million ($146,552 per key), which was 34.6% below the $39.0 million ($224,138 per key) appraised value at issuance. KBRA’s analysis resulted in an estimated loss of $4.7 million (21.8% estimated loss severity) based on a liquidation value of $18.3 million ($105,172 per key) and projected total exposure of $23.0 million.
- 170 Broadway ($17.6 million, 7.3%, Matured Performing) is collateralized by 16,134 sf ground floor retail condominium unit located at the corner of Broadway and Maiden Lane in the Financial District of Manhattan, New York. The property is 100% leased to The Gap, pursuant to a NNN lease that expires in February 2030. The loan transferred to the special servicer in December 2024 due to imminent maturity default, and a receiver was appointed in October 2025. The tenant attempted to negotiate amended lease terms given its above market rents and impending lease expiration, but an agreement could not be reached as of the current review. The Gap continues to pay rent as contractually obligated despite having payment issues historically. Foreclosure has been filed, and the property will concurrently be marketed for sale. An appraisal report dated October 2025 indicates a valuation of $40.0 million ($2,479 per sf), which is 60.0% below the $100.0 million ($6,198 per sf) value at issuance. KBRA's analysis resulted in an estimated loss of $38.4 million (62.1% estimated loss severity) on a whole loan balance of $61.8 million, of which $11.0 million of the estimated loss is allocated to this trust. The estimated loss is based on a liquidation value of $25.7 million ($1,592 per sf) and projected total exposure of $64.1 million. The liquidation value is derived from an income capitalization approach using a KNCF of $2.5 million, a capitalization rate of 7.00%, and a downward adjustment to account for TI/LC costs associated with the fit out of the space for a new tenant.
- River Drive III ($11.3 million, 4.7%, Matured Non-Performing) is collateralized by a four-story 96,593 sf office property located in Elmwood Park, New Jersey, approximately 11 miles west of New York City. The loan transferred to special servicing in September 2025 after failing to pay off at maturity in May 2025. According to the January 2026 rent roll, the property was 100% leased to seven tenants with minimal near-term lease rollover. The borrower has had difficulty securing refinancing, and updated servicer commentary indicated the borrower is working with the special servicer to convey the property to the trust. At this time, KBRA does not estimate a loss on this asset.
Details concerning the classes with ratings changes are as follows:
- Class D to CC (sf) from CCC (sf)
- Class E to C (sf) from CC (sf)
Details concerning the ratings affirmations are as follows:
- Class B at BBB- (sf)
- Class C at BB- (sf)
- Class PEZ at BB- (sf)
- Class F at C (sf)
Rating Sensitivities
Future rating actions will be dependent upon the ongoing assessment of the timing and likelihood of ultimate payment of principal and accrued interest on the rated certificates. The assessment will consider the expected and actual losses on the remaining assets in the transaction, as well as the magnitude and extent of interest shortfalls, if any, on the certificates.
To access ratings and relevant documents, click here.