Foreclosure auction price
$260M
100 Summer Street, Oct. 20, 2026; sole bidder Rockpoint Group
Discount to the 2019 sale
68%
Against the $806 million Rockpoint paid in October 2019
Original mortgage
$470M
Originated by Wells Fargo in October 2019
Recovery on that mortgage
55%
Proceeds against original face; payoff balance at default not disclosed
City assessment vs. auction
39% below
$425 million assessed value against a $260 million cash price
Office CMBS delinquency
12.16%
September 2026, up 16 basis points on the month
The auction
One Bid, and It Came From the Owner
On October 20, 2026, Rockpoint Group bought back100 Summer Street — a 32-story, roughly 1.1 million square foot Class A tower steps from South Station in Boston's Financial District — at a live on-site foreclosure auction conducted by Sullivan & Sullivan Auctioneers. Rockpoint's $260 million was the only bid on the table, and it was also the opening bid. The firm had acquired the tower in October 2019 for $806 million, financed with a $470 million mortgage from Wells Fargo. Three marks now sit on the same asset, and the cheapest of the three marks is the only one backed by cash.
- The $260 million came from Rockpoint itself, so the price was negotiated between a defaulted borrower and its lender rather than discovered between competing buyers.
- The sale terms tilted the field decisively: a $10 million deposit in escrow by noon the day before, a fully executed escrow agreement and W-9 to qualify, and the balance wired within 35 days.
- The mortgagee could reject any and all bids and postpone the sale until the property was declared sold — it had every incentive to secure a closing over an open market.
- Rockpoint could close in 35 days with financing already arranged, and that speed is why the only bid in the room was the incumbent owner.
The asset and the sale
Property
100 Summer Street, Boston
32 stories, Financial District, steps from South Station
Size
~1.1M SF of office space
Trade press cites ~1.3M SF of total building space
Occupancy at sale
72% leased
More than 330,000 SF still available
Recent lease signed
79,000 SF at $64.77/SF
Massachusetts Trial Court offices, three floors, 10-year term
Prior owner
Blackstone and EQ Office
Sold to Rockpoint in October 2019 for $806 million
Auction result
$260 million, sole bidder
Sullivan & Sullivan Auctioneers, Oct. 20, 2026
City assessment
$425 million
Latest assessment, per Boston assessor records
The marks
Four Prices, One Building
100 Summer Street: four marks on the same tower
Amounts in USD millions. Per-square-foot figures use the roughly 1.1 million square feet of office space described in the auction prospectus; trade press cites about 1.3 million square feet of total building space.
Unit: USD millions
2019 private sale
Rockpoint buys from Blackstone and EQ Office
806
Original mortgage
Wells Fargo, October 2019
470
City assessment, 2026
Boston assessment
425
Foreclosure auction, Oct. 2026
Cash, sole bidder
260
The spread between those marks is the entire story of the cycle. The 2019 sale price of $806 million was set by private capital underwriting a pre-pandemic cash flow; the $470 million mortgage was sized against it; and the $425 million city assessment has barely moved since. The auction is the first of the four to be tested by a transaction. Per square foot of office space, $260 million works out to about $236, against roughly $733 paid in 2019 and roughly $386 on the tax roll.
One number deserves attention because it is not on any of those marks: the mortgage balance at default has not been disclosed. The $470 million was the original face, and seven years of amortization or extension means the payoff amount is unknown, so the true loss severity on the loan is not calculable from public information. What is calculable is the recovery per dollar of original principal — and that is the figure that matters for CRE credit, not the discount to a2019 price.
Loss severity
The Recovery Is the Number That Matters
At $260 million against a $470 million original mortgage, the proceeds recover about 55 cents on the dollar of original principal. The same arithmetic on the other two prints now available puts a Boston predecessor and a Los Angeles loan trade alongside it, and all three sit far below what single-borrower securitization losses have averaged. That is the finding with the most reach for CRE credit investors: office is no longer a low-loss-severity sector inside a diversified pool, it is a separate and much worse tail.
What each creditor recovered on principal
Percent of original principal recovered. Benchmarks from the CREFC/KBRA single-borrower default and loss study (data through Q3 2025); transaction prints from the 2025 and 2026 auctions and loan sales.
Unit: % of principal recovered
CREFC average, all resolved loans
11.2% average loss severity
88.8
CREFC, 8 largest-loss resolutions
40.3% average loss severity, four office
59.7
100 Summer St., Boston auction
$260M against $470M original face
55.3
One Lincoln St., Boston auction
$400M against $763M 2022 mortgage
52.4
355 S Grand Ave., LA loan trade
About $115M against a $290M loan
39.7
- Single-borrower resolutions averaged 11.2% loss severity overall, but the eight loans that lost more than 1% averaged 40.3% loss severity, and four of those eight were office.
- One Lincoln Street, a 36-story Boston tower refinanced with a $763 million mortgage in 2022, sold at auction for $400 million — barely half the debt, in the same city and the same year of the cycle's maturity wall.
- On 355 South Grand in downtown Los Angeles, a $290 million loan on a 42%-leased tower formerly owned by Brookfield traded for about $115 million, roughly $100 per square foot, in a deal brokered by Newmark.
- The loser of the extension strategy is now visible: a loan that ran to its final extended maturity and failed to pay moved to special servicing in August 2026.
The practical implication for anyone underwriting or holding office credit is that a diversified book no longer blunts the tail. If office losses resolve at 40 to 60 percent of principal while the rest of a pool resolves in the low teens, the weighted average for a book that was marketed as diversified can be misleadingly benign, and the senior tranches that were sold on that premise are carrying the concentration. The Boston auction is the visible edge of that distribution; the loans that will resolve below it are not yet on the tape.
Mechanism
Why the Auction Price Is Not a Valuation
The most important thing about the $260 million is what it is not. It is not a competitive price. The mortgagee could reject bids and postpone the sale; the successful bidder had to wire the balance in 35 days; and the only bidder was the party with the strongest incentive to keep the asset, the incumbent owner. So the print reflects the auction price reflects what the incumbent would pay to keep the asset rather than what a fresh buyer with no legacy cost basis would pay for it — and the incumbent's willingness to pay is anchored to avoiding a total loss, not to the building's cash flow.
- Boston's assessment still sits 63% above the cash price — $425 million against $260 million — so the tax roll has absorbed none of the repricing.
- Class A asking rents in the Boston CBD held at $74.77 per square foot in Q2 2026, barely off the $76.22 first-quarter peak, while Class B asking fell to $50.09, the lowest since 2018.
- CBD vacancy hit a record 22.5%, about 10.2 points above the 20-year average of 12.3%, with net absorption of negative 291,691 square feet in the quarter.
- The market is bifurcating rather than uniformly falling: only five large-floor options remained above the 15th floor in the CBD, and sublease space is 14.4% of total availability — scarcity and glut at the same time.
- A public-sector tenant signing79,000 square feet for ten years at $64.77 per square foot in a building 28% vacant shows the income is real, which makes the $546 million of value destruction a leverage outcome, not a rent outcome.
Timing
Extensions Are Expiring, and Cash Is the New Price
Office defaults are converting into sales because the refinancing runway has run out. In the CREFC/KBRA single-borrower study, 23 of 29 reperforming loans had their final maturities extended and were current — the extension strategy worked on timing. Fitch recorded a loan transferring to special servicing in August 2026 after the borrower failed to repay at its final extended maturity. Those two facts together explain why 2026 is the year defaults become cash prices rather than amendments: the deferral mechanism has been consumed, and what is left is a foreclosure that has to clear.
Commercial property values last year declined for the second year running, and many office buildings have sold at far below their assessed values.
- CMBS delinquency reached 8.02% in September 2026, the highest since November 2020, and office delinquency rose16 basis points to 12.16% — a sector, not a handful of loans, is now delinquent.
- Office is the largest category in special servicing at 16.58%, and the overall special servicing rate was 11.09% in July even as office improved from an even higher level.
- Multifamily delinquency reached 8.04% in September, up 35 basis points in a single month — the office repricing is not the only refinancing wall, it is simply arriving first in the loss data.
- The five largest newly delinquent loans in September included a $470 million Houston office complex, a $230 million Denver office loan and a $209 million Silicon Valley single-tenant office loan.
Supply chain
Who Ends Up Holding the Risk
The chain from auction to owner is now a private market, not a securitized one. The foreclosing bank takes the loss, the incumbent or a lender-affiliated vehicle takes the asset, and the paper that survives is bought by private credit and insurer balance sheets whose liabilities are long-dated and whose underwriting is not bound by a 2019 appraisal. That is why the prints on the loan side — 40 to 60 cents for office — are the more informative ones, and why the asset side has so few third-party bidders.
- Upstream, Wells Fargo originated the $470 million mortgage in October 2019 and foreclosed in2026; it reported $5.95 billion of third-quarter net income and $1.03 trillion of average loans, so one tower is immaterial to the bank and the channel is not.
- Newmark Group, which completed the 2019 sale of the tower, also brokered the discounted $290 million Los Angeles loan trade — the same firm is earning fees on both the top and the bottom of this cycle.
- Apollo Global Management's retirement-services affiliate Athene agreed in January 2026 to buy Apollo's own $9 billion commercial real estate loan portfolio, moving real estate credit onto an insurance balance sheet.
- Downstream, the Massachusetts Trial Court is the long-duration tenant underwriting 79,000 square feet at $64.77 per square foot, while tenants like SimpliSafe and Ironwood Pharmaceuticals occupy space whose price has fallen by two-thirds.
- Blackstone, which sold the tower into Rockpoint's hands in 2019 alongside EQ Office, is the largest alternative manager with distressed mortgage and special-situations capability at 1.3 times net debt to EBITDA — and the natural buyer at the new price.
Public REITs
The Landlords Left Holding the Marks
The public office REITs are the part of the chain that cannot sell, and their marks are the part that has not moved. Newmark's market data shows Boston CBD rents holding at the top of the range while vacancy hit a record, so the value destruction in office is a capital-structure event: a lender's willingness to advance against2026 cash flows, not a fall in rent. Meanwhile BXP, the largest Class A owner and the most Boston-weighted of the group, still reports net debt of $15.8 billion and 8.5 times trailing EBITDA, with trailing interest expense of $620 million against $361 million of free cash flow.
| Landlord | Net debt | Net debt / EBITDA | Trailing revenue | Trailing net income | Market value |
|---|---|---|---|---|---|
| BXP | $15.8B | 8.5x | $3.52B | $297M | $9.72B |
| Vornado Realty Trust | $8.4B | 9.0x | $1.83B | $68M | $6.41B |
| SL Green Realty | $6.2B | 14.0x | $1.07B | -$128M | $3.48B |
| Kilroy Realty | $4.4B | 7.1x | $1.09B | $29M | $4.18B |
| Alexandria Real Estate Equities | $12.7B | n.m. | $2.89B | -$1.31B | $7.12B |
The direction of travel differs by name but the arithmetic does not. Vornado Realty Trust has cut trailing EBITDA to roughly $933 million from about $1.77 billion for full-year 2025, which pushed leverage from 4.0 times to 9.0 times in twelve months and left net debt of $8.4 billion above its $6.41 billion market value. SL Green Realty still carries 14.0 times trailing EBITDA with negative trailing free cash flow and a market value a third of enterprise value. Kilroy Realty saw net debt to EBITDA move from 5.7 times to 7.1 times with negative trailing free cash flow of $70 million. And Alexandria Real Estate Equities, the flight-to-quality destination for Boston tenants that absorbed EQ Office, is itself carrying $12.7 billion of net debt against a $7.12 billion market value after a $1.31 billion trailing net loss.
Horizons
What to Watch, and What Would Change the View
- Over the next 90 days, the closure mechanics are the tell: the balance of purchase price is due within 35 days of the auction, and how Rockpoint funds and re-levers the tower will reveal whether $260 million was a private credit bid or a bank workout.
- Watch the next Boston print rather than this one. If a genuinely third-party buyer clears above $260 million, this auction understated the market; if the only bidder is again the incumbent or a lender affiliate, the asset is worth less than the tax roll says.
- Delinquency and resolution data are the leading indicators: Trepp's series showed office at 12.16% and multifamily rising35 basis points in a single month, and every point of additional delinquency feeds the pipeline of forced sales that sets the next print.
- Expect the divergence to persist between Class A and the rest of the stack. Class A asking rents held near record levels while Class B fell to a 2018 low, so the assets that clear by default will increasingly be mid-market rather than trophy.
- Over one to three years, the appraisal-based marks embedded in public REIT books, municipal tax rolls and structured credit documentation all have to converge on cash prices, and each of those resets is a discrete earnings and capital event.
- Private credit and insurance capital become the structural owner of levered office: Apollo Global Management and Ares Management both expand real estate debt platforms, and annuity float has more tolerance for a 50% recovery than a CMBS senior tranche does.
- The repricing creates a genuine opportunity for unlevered buyers with permanent capital, and a trap for the public REITs, whose leverage leaves them unable to exploit it — BXP at 8.5 times and SL Green Realty at 14.0 times are structurally excluded from buying their own assets at $236 per square foot.
- The risk to this whole view is a rent recovery. Boston Class A rents are holding, and if occupancy stops falling, cash flows rise, appraisals become defensible and today's auction prints look like the trough rather than the new normal.
Where the repricing lands
- carries $15.8 billion of net debt at 8.5 times trailing EBITDA, with $620 million of trailing interest expense against $361 million of free cash flow.
- Boston's largest Class A landlord holds the assets that a $236-per-square-foot auction print directly challenges; its own book was built on the pre-2020 numbers.
- Over one to three years, refinancing $16.4 billion of debt into a market that repriced 68% lower is the binding constraint, not leasing.
- Trailing EBITDA fell to roughly $933 million from $1.77 billion for full-year 2025, lifting leverage from 4.0 to 9.0 times in twelve months.
- Net debt of $8.4 billion now exceeds its $6.41 billion market value, so every dollar of further mark-down lands on a thin equity base.
- Trailing interest expense of $349 million against $68 million of trailing net income leaves little room to absorb another appraisal reset.
- 14.0 times trailing net debt to EBITDA and negative trailing free cash flow of $30 million make this the least flexible owner in the group.
- Enterprise value of $9.66 billion against a $3.48 billion market value means equity absorbs nearly all of any further impairment.
- Its January 2026 joint venture with Rockpoint for 100 Park Avenue shows the fix is partnership capital, not balance sheet.
- Trailing free cash flow of negative $70 million and $210 million of interest expense meancapital expenditure cannot be funded from operations.
- Net debt to EBITDA moved from 5.7 times to 7.1 times in twelve months, with net debt of $4.4 billion against a $4.18 billion market value.
- West Coast office marks have not been tested by an auction the way Boston's just were, which makes a bad print in San Francisco and Seattle the next risk.
- The flight-to-quality destination absorbed EQ Office, one of the 2019 sellers of 100 Summer Street, and now carries a $1.31 billion trailing net loss.
- Net debt of $12.7 billion against a $7.12 billion market value with trailing EBITDA near zero leaves no margin for another impairment cycle.
- If Boston office rent recovers, life science demand for tenants weakens and its own capital plan stalls — the hedge against office is not free.
- Sold100 Summer Street in 2019 for $806 million alongside EQ Office; the same asset cleared at $260 million in 2026.
- Trailing net income of $3.56 billion and 1.3 times net debt to EBITDA give it more dry powder than any buyer in this auction.
- Its distressed mortgage and special-situations mandate means the firm is paid to own exactly the paper this cycle creates, at prices below appraisal.
- Its retirement-services affiliate Athene agreed in January 2026 to buy Apollo's $9 billion commercial real estate loan portfolio, moving that credit onto an insurance balance sheet.
- With $26.8 billion of cash and $419 billion of investments, Apollo has the permanent capital to underwrite a 50% recovery where CMBS cannot.
- The offset: Apollo reported a $1.91 billion net loss in the first quarter of 2026 before earning $1.36 billion in the second, so the private bid is not unlimited.
- Brokered the 2019 sale of 100 Summer Street at $806 million and the 2026 trade of a $290 million Los Angeles loan at roughly $115 million.
- Trailing revenue of $3.61 billion with enterprise value of $3.81 billion against a $1.90 billion market value pricesa fee pool that grows as defaults and discounts spread.
- Over one to three years, distressed loan sales, foreclosure auctions and debt restructurings are the growth line while leasing and investment banking fees are not.
