NYC property data › Manhattan › Chelsea & Hell's Kitchen › 521 West 21 Street

521 West 21 Street

Chelsea & Hell's Kitchen, Manhattan · Commercial & office · BBL 1006930018

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7Units
2Floors
34,600Building sq ft
17,281Lot sq ft
1931Year built
M1-5Zoning
2.00 of 6.50Built FAR
1994Last sale
6DOB permits
0Open violations

Who owns this building?

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Sales history

RecordedDocumentAmount
1994-09-09Deednot recorded
1994-09-09Deednot recorded
1985-10-29Deednot recorded

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
2024-08-08Initial PermitSidewalk Shed
2022-09-16Initial PermitGeneral Construction
2021-07-13Renewal Permit Without ChangesPlumbing
2020-06-30Renewal Permit Without ChangesPlumbing
2020-06-10Initial PermitPlumbing

Source: DOB NOW approved permits, which covers 2017 onward. 6 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

Other lots on this block

Recent sales in Chelsea & Hell's Kitchen

Chelsea & Hell's Kitchen commercial real-estate market data →

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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 1006930018 · data refreshed 2026-08-14

Development & air rights

31% 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.