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NYC Building Records · BBL 1019880088

521 WEST 135 STREET

Manhattan · Block 1988 · Lot 88 · Walk-up coop (Class C6)

521 WEST 135 STREET is a Class C6 (walk-up coop) building in Manhattan (BBL 1019880088) built in 1915, with 20 residential units across 5 floors.

The building is in NYC community district 109, council district 7, zoning district R7A, on a 3,997-square-foot lot with a building footprint of 13,170 square feet.

The current registered owner of record per NYC PLUTO is 521 WEST 135TH STREET HDFC.

MetroDeeds shows no confirmed ACRIS deed transfer for this BBL in the last 5 years of recorded NYC public-records data.

The building is registered with NYC HPD's landlord-registration system and has no open HPD housing-maintenance code violations on record as of May 18, 2026.

Data sourced daily from NYC PLUTO (Department of City Planning), NYC ACRIS (Department of Finance), and NYC HPD housing-maintenance code violations.

Owner of record

521 WEST 135TH STREET HDFC
HPD-registered head officer: WILLY CONTRERAS

HPD registered contacts

People legally accountable to HPD for conditions at this building, in registration-priority order:
  • Head OfficerWILLY CONTRERAS
  • Corporate Owner521 WEST 135TH STREET
  • Managing Agent521 WEST 135TH STREET HDFC
  • Site ManagerJOSE GUZMAN

Most recent deed

Last transferred on Oct 29, 2007 for $5K to 521 West 135th Street Hdfc.
Previous owner: City Of Ny Acting By And Through Its Dept. Of Hpd
Mortgage: Not disclosed recorded Oct 29, 2007 with City Of Ny Acting By And Through Its Dept. Of Hpd.
🔒 See all transfers before the 2007 sale →

Recent ACRIS documents (last 2)

DateTypeAmountParties
Oct 29, 2007AGMTNot disclosedParties redacted — full names in MetroDeeds Scout+
Oct 29, 2007DEED$5KParties redacted — full names in MetroDeeds Scout+
🔒 Reveal the 2 redacted buyer/seller names above →

Building stats

Units
20
Year built
1915
Class
C6
Borough
Manhattan
Zoning:
R7A
Lot size:
3,997 sqft
Building area:
13,170 sqft
Floors:
5
Assessed value:
$607K
Community district:
109
Council district:
7

HPD violations

0 open
Most severe class on record: Class C (immediately hazardous)
No open violations on record. Source: NYC HPD.
🔒 See every closed violation + inspection history →

Recent HPD violation details

Most recent 5 violations issued by NYC HPD at this address:
  • Class AInspected Apr 29, 2026
    (A) § HMC:FILE ANNUAL BEDBUG REPORT IN ACCORDANCE WITH HPD RULE AS DESCRIBED ON THE BACK OF THIS NOTICE OF VIOLATION OR AS DESCRIBED ON HPD…
  • Class IInspected Nov 17, 2025
    §27-2107 ADM CODE OWNER FAILED TO FILE A VALID REGISTRATION STATEMENT WITH THE DEPARTMENT AS REQUIRED BY ADM CODE §27-2097 AND IS THEREFORE…
  • Class AInspected Jun 4, 2025
    (A) § HMC:FILE ANNUAL BEDBUG REPORT IN ACCORDANCE WITH HPD RULE AS DESCRIBED ON THE BACK OF THIS NOTICE OF VIOLATION OR AS DESCRIBED ON HPD…
  • Class AInspected May 21, 2025
    § 27-2013 ADM CODE PAINT WITH LIGHT COLORED PAINT TO THE SATISFACTION OF THIS DEPARTMENT THE CEILING AND ALL WALLS IN THE ENTIRE APARTMENT L…
  • Class IInspected Nov 22, 2024
    §27-2107 ADM CODE OWNER FAILED TO FILE A VALID REGISTRATION STATEMENT WITH THE DEPARTMENT AS REQUIRED BY ADM CODE §27-2097 AND IS THEREFORE…
🔒 See closure dates + classification on archived violations →

Recent ACRIS activity

2 documents in the last 5 years (most recent Oct 29, 2007).

Frequently asked questions about 521 WEST 135 STREET

Who owns 521 WEST 135 STREET?

The current registered owner of record for 521 WEST 135 STREET per NYC PLUTO is 521 WEST 135TH STREET HDFC. MetroDeeds shows no confirmed ACRIS deed transfer for this BBL in the last 5 years of recorded NYC public-records data.

When was 521 WEST 135 STREET last sold?

MetroDeeds shows no confirmed ACRIS deed transfer for 521 WEST 135 STREET in the last 5 years of recorded NYC public-records data. NYC ACRIS coverage extends back to 1966; an absence in our 5-year window typically means either the BBL has not transacted recently, or the most recent recorded document is not a DEED type (such as a refinance rather than a sale).

How many HPD violations does 521 WEST 135 STREET have?

No open HPD housing-maintenance code violations are on record for 521 WEST 135 STREET as of May 18, 2026. The building is registered with NYC HPD's landlord-registration system. HPD violation data is pulled daily from the NYC Open Data violations feed.

What is the assessed value of 521 WEST 135 STREET?

NYC Department of Finance assesses 521 WEST 135 STREET at $607K for the current tax year. NYC assesses property at a fraction of estimated market value (the assessment ratio varies by tax class — 6% for tax class 1 one-to-three-family dwellings, approximately 45% for tax class 2 rental apartment buildings), so the market value implied by this assessment is meaningfully higher. Assessment data is published by NYC Department of Finance.

What building class is 521 WEST 135 STREET and what does that mean?

521 WEST 135 STREET is NYC building class C6 — Walk-up coop. A walk-up cooperative apartment building. Building class is assigned by NYC Department of Finance and recorded in PLUTO; it determines the property's tax class and the regulatory regime that applies.

More from MetroDeeds

Go deeper on this building

Open full Landlord Intel for 521 WEST 135 STREET
Every deed, every violation, court cases, mortgages, and operator portfolio — in one panel.
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