1645 First Avenue sells for $27.9M, tied to Extell's Yorkville block
A $27,884,250 deed for 1645 First Avenue was recorded Nov. 10. Trade outlets link the buyer to Extell's Yorkville assemblage and a demolition filing.
- Source Briefing
- Public record
- Also reported by Patch
A deed for 1645 First Avenue on the Upper East Side was recorded on Nov. 10 at $27,884,250. The city register shows B 1645 LLC conveying the property to 1645 First Avenue LLC, in a document dated Nov. 3.
Why it matters
The deed does not name a controller. Patch and East Side Feed report that Extell Development is the buyer and that the lot is the last piece of its First Avenue assemblage between East 85th and East 86th streets. We could not confirm Extell’s role from the deed itself, so treat that link as reported by trade outlets.
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If it holds, the sale removes a long-running gap in a site Extell has been assembling since 2014, per East Side Feed’s account of earlier trade reporting. For developers and brokers working Yorkville, a clean block changes what can be built there and how the neighboring lots are valued.
The numbers
- Price: $27,884,250 per the deed.
- Document date: Nov. 3, 2026. Recorded Nov. 10, 2026.
- Property: Manhattan block 1548, lot 27.
- Building: a four-story walk-up, which East Side Feed describes as built in 1910 with 36 units per city property data.
Patch reports that full demolition permits for the building have been filed with the Department of Buildings, without a job number or filing date. We did not locate that filing in the city’s open-data records, so the demolition claim rests on that outlet.
What’s next
Extell previously filed plans for a 22-story, 543-apartment tower at the adjoining 1637 First Avenue, according to East Side Feed. Patch says updated plans have not yet appeared in city records, and no replacement project has been filed for this lot. Watch the Department of Buildings for a new-building filing that folds 1645 First Avenue into a larger footprint.
The deal follows another Extell land play this week, covered in our report on its air rights purchase tied to 34 and 36 East 61st Street. More on the market is in our New York coverage.
Quick answers
- How much did 1645 First Avenue in New York sell for?
- A $27,884,250 deed for 1645 First Avenue was recorded Nov. 10. Trade outlets link the buyer to Extell's Yorkville assemblage and a demolition filing.
- What are the key numbers for Extell Development?
- deed price: $27.9M; recorded: Nov. 10; block and lot: 1548/27.
- Where does the information on Extell Development come from?
- The story cites NYC City Register (ACRIS), Patch and East Side Feed.
On the record
City Register deed, document 2026111000209002: B 1645 LLC to 1645 FIRST AVENUE LLC for $27,884,250, document dated 2026-11-03, recorded 2026-11-10, Manhattan block 1548 lot 27. Controller: Extell per trade outlets only, not shown on the deed.
Public record · a836-acris.nyc.gov
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