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NYC Building Records · BBL 1021270043

504 WEST 171 STREET

Manhattan · Block 2127 · Lot 43 · Walk-up, over six families (Class C1)
Last recorded deed: Aug 2009Last HPD violation issued: 2026-02-18

504 WEST 171 STREET is a Class C1 (walk-up, over six families) building in Manhattan (BBL 1021270043) built in 1907, with 20 residential units across 5 floors.

The building is in NYC community district 112, council district 10, zoning district R7-2, on a 4,156-square-foot lot with a building footprint of 14,810 square feet.

The current registered owner of record per NYC PLUTO is 504 WEST 171ST STREET OWNERS C.A. HOUSIN G.

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.

Aerial map of 504 WEST 171 STREET, ManhattanStreet View of 504 WEST 171 STREET, Manhattan

Owner of record

504 WEST 171ST STREET OWNERS C.A. HOUSIN G
HPD-registered head officer: Marina Karfosky

HPD registered contacts

People legally accountable to HPD for conditions at this building, in registration-priority order:
  • Head OfficerMarina Karfosky
  • Corporate Owner504 WEST 171 STREET OWNERS CAHDFC
  • Managing AgentFinger Management Realty LLC
  • Site ManagerMANUEL ESTEBAN

Most recent deed

Last transferred on Aug 28, 2009 to 504 West 171st Street Owners C.a. Housing.
Previous owner: 504 West 171st Street Housing Development Fund
Mortgage: $1.4M recorded Aug 28, 2009 with City Of New York.
🔒 See all transfers before the 2009 sale →

Activity timeline

Recent ACRIS documents (last 5)

DateTypeAmountParties
Apr 13, 2010AGMT$1.4MParties redacted — full names in MetroDeeds Scout+
Aug 28, 2009DEEDNot disclosedParties redacted — full names in MetroDeeds Scout+
Aug 28, 2009AGMTNot disclosedParties redacted — full names in MetroDeeds Scout+
Aug 28, 2009AGMT$1.4MParties redacted — full names in MetroDeeds Scout+
Aug 28, 2009MTGE$601KParties redacted — full names in MetroDeeds Scout+
🔒 Reveal the 5 redacted buyer/seller names above →

Building stats

Units
20
Year built
1907
Class
C1
Borough
Manhattan
Zoning:
R7-2
Lot size:
4,156 sqft
Building area:
14,810 sqft
Floors:
5
Assessed value:
$1.0M
Community district:
112
Council district:
10

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 BInspected Feb 18, 2026
    § 27-2026, 2027 HMC: PROPERLY REPAIR THE SOURCE AND ABATE THE EVIDENCE OF A WATER LEAK AT CEILING IN THE BATHROOM LOCATED AT APT 1B, 1st STO…
  • Class AInspected Feb 18, 2026
    § 27-2005 ADM CODE PROPERLY REPAIR WITH SIMILAR MATERIAL THE BROKEN OR DEFECTIVE CAULKING AROUND BATHTUB IN THE BATHROOM LOCATED AT APT 2D,…
  • Class BInspected Feb 18, 2026
    § 27-2005 HMC: PROPERLY REPAIR OR REPLACE THE BROKEN OR DEFECTIVE INOPERABLE 1ST AND 2ND GFCI ELECTRICAL OUTLET AT NORTH WALL IN THE KITCHEN…
  • Class AInspected Feb 18, 2026
    § 27-2026 ADM CODE REPAIR THE LEAKY AND/OR DEFECTIVE FAUCETS AT WASH BASIN IN THE BATHROOM LOCATED AT APT 1B, 1st STORY, 2nd APARTMENT FROM…
  • Class BInspected Feb 18, 2026
    § 27-2005 HMC: PROPERLY REPAIR OR REPLACE THE BROKEN OR DEFECTIVE INOPERABLE GFCI ELECTRICAL OUTLET AT SOUTH WALL IN THE BATHROOM LOCATED AT…
🔒 See closure dates + classification on archived violations →

Recent ACRIS activity

5 documents in the last 5 years (most recent Apr 13, 2010).

Frequently asked questions about 504 WEST 171 STREET

Who owns 504 WEST 171 STREET?

The current registered owner of record for 504 WEST 171 STREET per NYC PLUTO is 504 WEST 171ST STREET OWNERS C.A. HOUSIN G. MetroDeeds shows no confirmed ACRIS deed transfer for this BBL in the last 5 years of recorded NYC public-records data.

When was 504 WEST 171 STREET last sold?

MetroDeeds shows no confirmed ACRIS deed transfer for 504 WEST 171 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 504 WEST 171 STREET have?

No open HPD housing-maintenance code violations are on record for 504 WEST 171 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 504 WEST 171 STREET?

NYC Department of Finance assesses 504 WEST 171 STREET at $1.00M 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 504 WEST 171 STREET and what does that mean?

504 WEST 171 STREET is NYC building class C1 — Walk-up, over six families. A 3-to-6-story walk-up apartment building with more than 6 residential units. 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

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