NYC property data › Manhattan › Upper East Side › 801 Madison Avenue

801 Madison Avenue

Upper East Side, Manhattan · Mixed residential & commercial · BBL 1013820021

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2Units
5Floors
6,346Building sq ft
1,512Lot sq ft
1881Year built
C5-1Zoning
4.20 of 10.00Built FAR
$33M · 2015Last sale
12DOB permits
0Open violations

Who owns this building?

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Sales history

RecordedDocumentAmount
2015-04-01Deed$33,000,000

Source: NYC ACRIS. A $0 amount means the deed records no consideration — common on estate, correction and in-family transfers, and not a sale price of zero.

Recent DOB permits

IssuedTypeWork
2026-07-13Initial PermitSprinklers
2026-07-13Initial PermitPlumbing
2026-07-13Initial PermitGeneral Construction
2026-07-07Initial PermitMechanical Systems
2023-09-01Initial PermitPlumbing

Source: DOB NOW approved permits, which covers 2017 onward. 12 permits on file for this lot.

Owner debt & loan position

The most recent open mortgage recorded against this lot, when it was recorded, and how far into its term it is.

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Who finances deals like this

The lenders with the most recorded retail mortgages in Manhattan since 2021, from public ACRIS filings.

  1. Scale Abf 135TH Harlem Lender LLC — 3 loans, typically $5.25M–$33.75M
  2. S3 Re 34 Union Square Funding LLC — 3 loans, typically $3M–$15.5M
  3. East Ninth LLC — 3 loans, typically $1.31M–$15.72M
  4. Symetra Life Insurance Company — 4 loans, typically $184K–$329K
  5. Commonwealth Business Bank — 3 loans, typically $370K–$2.24M
Match this deal to 135 lenders

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Development & air rights

42% Underbuilt — built floor area as a share of the estimated as-of-right maximum

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Estimated from NYC PLUTO zoning data. This is not a zoning analysis — confirm with a zoning attorney or architect before relying on it. As-of-right only: excludes bonuses, air-rights transfers and variances.

Compiled from NYC Open Data: PLUTO (lot and building attributes), ACRIS (deeds and mortgages), DOB NOW (permits) and HPD (violations). Public record, presented as recorded; Crezly does not warrant it. BBL 1013820021 · data refreshed 2026-10-24