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NYC Building Records · BBL 1007440046

308 WEST 21 STREET

Manhattan · Block 744 · Lot 46 · Walk-up, three families (Class C4)

308 WEST 21 STREET is a Class C4 (walk-up, three families) building in Manhattan (BBL 1007440046) built in 1900, with 19 residential units across 5 floors.

The building is in NYC community district 104, council district 3, zoning district R7B, on a 2,300-square-foot lot with a building footprint of 8,125 square feet.

The current registered owner of record per NYC PLUTO is PROLIFIA, 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

PROLIFIA, LLC
HPD-registered head officer: ADAM JERNOW

HPD registered contacts

People legally accountable to HPD for conditions at this building, in registration-priority order:
  • Head OfficerADAM JERNOW
  • Corporate OwnerPROLIFIA LLC
  • Managing AgentWAYFINDERPM LLC
  • Site ManagerMANUEL VILLA

Most recent deed

Last transferred on Jun 1, 2016 to Prolifia, Llc.
Previous owner: Ppny 17, Llc
Cash sale: no recorded mortgage tied to this transfer.
🔒 See all transfers before the 2016 sale →

Recent ACRIS documents (last 5)

DateTypeAmountParties
Dec 28, 2018AGMT$8.8MParties redacted — full names in MetroDeeds Scout+
Dec 28, 2018MTGE$1.1MParties redacted — full names in MetroDeeds Scout+
Jun 1, 2016DEEDNot disclosedParties redacted — full names in MetroDeeds Scout+
Aug 20, 2014MTGE$296KParties redacted — full names in MetroDeeds Scout+
Aug 20, 2014DEED$13.3MParties redacted — full names in MetroDeeds Scout+
🔒 Reveal the 5 redacted buyer/seller names above →

Building stats

Units
19
Year built
1900
Class
C4
Borough
Manhattan
Zoning:
R7B
Lot size:
2,300 sqft
Building area:
8,125 sqft
Floors:
5
Assessed value:
$2.1M
Community district:
104
Council district:
3

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 Mar 27, 2026
    § 27-2024 ADM CODE PROVIDE ADEQUATE SUPPLY OF HOT WATER FOR THE FIXTURES AT SINK IN THE KITCHEN LOCATED AT APT 1, 1st STORY, 1st APARTMENT F…
  • Class BInspected Mar 20, 2026
    § 27-2005 ADM CODE PROPERLY REPAIR WITH SIMILAR MATERIAL THE BROKEN OR DEFECTIVE FIRE RETARDENT MATERIAL AT CEILING , WEST AND EAST WALLS AT…
  • Class AInspected Mar 20, 2026
    § 27-2013 ADM CODE PAINT WITH LIGHT COLORED PAINT TO THE SATISFACTION OF THIS DEPARTMENT AT CEILING ,WEST AND EAST WALLS AT PUBLIC HALL, 4th…
  • Class BInspected Mar 14, 2026
    § 27-2005 ADM CODE PROPERLY REPAIR WITH SIMILAR MATERIAL THE BROKEN OR DEFECTIVE FIRE RETARDANT MATERIALS AT SOUTH WALL AT PUBLIC HALL, 5th…
  • Class AInspected Mar 14, 2026
    § 27-2013 ADM CODE PAINT WITH LIGHT COLORED PAINT TO THE SATISFACTION OF THIS DEPARTMENT AT SOUTH WALL AT PUBLIC HALL, 5th STORY
🔒 See closure dates + classification on archived violations →

Recent ACRIS activity

5 documents in the last 5 years (most recent Dec 28, 2018).

Frequently asked questions about 308 WEST 21 STREET

Who owns 308 WEST 21 STREET?

The current registered owner of record for 308 WEST 21 STREET per NYC PLUTO is PROLIFIA, LLC. MetroDeeds shows no confirmed ACRIS deed transfer for this BBL in the last 5 years of recorded NYC public-records data.

When was 308 WEST 21 STREET last sold?

MetroDeeds shows no confirmed ACRIS deed transfer for 308 WEST 21 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 308 WEST 21 STREET have?

No open HPD housing-maintenance code violations are on record for 308 WEST 21 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 308 WEST 21 STREET?

NYC Department of Finance assesses 308 WEST 21 STREET at $2.05M 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 308 WEST 21 STREET and what does that mean?

308 WEST 21 STREET is NYC building class C4 — Walk-up, three families. A 3-to-6-story walk-up apartment building with 3 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

Go deeper on this building

Open full Landlord Intel for 308 WEST 21 STREET
Every deed, every violation, court cases, mortgages, and operator portfolio — in one panel.
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