633 WEST 171 STREET
633 WEST 171 STREET is a Class C1 (walk-up, over six families) building in Manhattan (BBL 1021420063) built in 1914, with 31 residential units across 5 floors.
The building is in NYC community district 112, council district 10, zoning district R8, on a 7,315-square-foot lot with a building footprint of 26,005 square feet.
The current registered owner of record per NYC PLUTO is 633 W 171 WH REALTY LLC.
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
HPD registered contacts
- Head OfficerCHRIS SPYROPOULOS
- Corporate Owner633 WEST 171 WH REALTY LLC
- Managing AgentALMA REALTY CORP
- Site ManagerSOCRATIS FORADOULAS
Most recent deed
Activity timeline
Recent ACRIS documents (last 5)
Building stats
- Zoning:
- R8
- Lot size:
- 7,315 sqft
- Building area:
- 26,005 sqft
- Floors:
- 5
- Assessed value:
- $847K
- Community district:
- 112
- Council district:
- 10
HPD violations
Recent HPD violation details
- Class BInspected Apr 30, 2026§ 27-2005 HMC: PROPERLY REPAIR OR REPLACE THE BROKEN OR DEFECTIVE LATCH SET AT VESTIBULE DOOR , 1st STORY
- Class CInspected Apr 30, 2026§ 27-2005, 27-2007, 27-2041.1 HMC, §238, § 309; § 107 (2) ( C) MDL AND 28 RCNY §25-171: REPLACE OR REPAIR THE SELF-CLOSING DOORS THAT IS MIS…
- Class BInspected Dec 14, 2025§ 27-2005 HMC: PROPERLY REPAIR OR REPLACE THE BROKEN OR DEFECTIVE LATCH SET AT BUILDING ENTRANCE DOOR , 1st STORY
- Class CInspected Dec 14, 2025§ 27-2005, 27-2007, 27-2041.1 HMC, §238, § 309; § 107 (2) ( C) MDL AND 28 RCNY §25-171: REPLACE OR REPAIR THE SELF-CLOSING DOORS THAT IS MIS…
- Class CInspected Jun 12, 2025§ 27-2005, 27-2007, 27-2041.1 HMC, §238, § 309; § 107 (2) ( C) MDL AND 28 RCNY §25-171: REPLACE OR REPAIR THE SELF-CLOSING DOORS THAT IS MIS…
Recent ACRIS activity
Frequently asked questions about 633 WEST 171 STREET
Who owns 633 WEST 171 STREET?
The current registered owner of record for 633 WEST 171 STREET per NYC PLUTO is 633 W 171 WH REALTY LLC. MetroDeeds shows no confirmed ACRIS deed transfer for this BBL in the last 5 years of recorded NYC public-records data.
When was 633 WEST 171 STREET last sold?
MetroDeeds shows no confirmed ACRIS deed transfer for 633 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 633 WEST 171 STREET have?
No open HPD housing-maintenance code violations are on record for 633 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 633 WEST 171 STREET?
NYC Department of Finance assesses 633 WEST 171 STREET at $847K 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 633 WEST 171 STREET and what does that mean?
633 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.