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NYC Building Records · BBL 3054690035

1974 51 STREET

Brooklyn · Block 5469 · Lot 35 · Walk-up, over six families (Class C1)

1974 51 STREET is a Class C1 (walk-up, over six families) building in Brooklyn (BBL 3054690035) built in 1928, with 47 residential units across 4 floors.

The building is in NYC community district 312, council district 44, zoning district R5, on a 11,886-square-foot lot with a building footprint of 37,916 square feet.

The current registered owner of record per NYC PLUTO is J 1974 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

J 1974 LLC
HPD-registered head officer: JOSEPH MENDELOWITS

HPD registered contacts

People legally accountable to HPD for conditions at this building, in registration-priority order:
  • Head OfficerJOSEPH MENDELOWITS
  • Corporate OwnerJ 1974 LLC
  • Managing AgentShulem Berger

Most recent deed

Last transferred on Jan 20, 2011 for $3.8M to J 1974 Llc.
Previous owner: 1974 Realty Associates
Cash sale: no recorded mortgage tied to this transfer.
🔒 See all transfers before the 2011 sale →

Recent ACRIS documents (last 5)

DateTypeAmountParties
May 20, 2021MTGE$366KParties redacted — full names in MetroDeeds Scout+
May 20, 2021AGMT$4.0MParties redacted — full names in MetroDeeds Scout+
May 8, 2017MTGE$1.3MParties redacted — full names in MetroDeeds Scout+
Mar 9, 2016MTGE$346KParties redacted — full names in MetroDeeds Scout+
Mar 9, 2016AGMT$2.7MParties redacted — full names in MetroDeeds Scout+
🔒 Reveal the 5 redacted buyer/seller names above →

Building stats

Units
47
Year built
1928
Class
C1
Borough
Brooklyn
Zoning:
R5
Lot size:
11,886 sqft
Building area:
37,916 sqft
Floors:
4
Assessed value:
$1.3M
Community district:
312
Council district:
44

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 May 4, 2026
    § 27-2005 ADM CODE REPAIR THE ROOF SO THAT IT WILL NOT LEAK OVER CEILING IN THE BATHROOM LOCATED AT APT 4C, 4th STORY, 1st APARTMENT FROM SO…
  • Class BInspected May 4, 2026
    § 27-2045(B)(1)(A) HMC, § 12-01, § 12-03 RCNY REPAIR, REPLACE OR PROVIDE AN APPROVED AND OPERATIONAL SMOKE DETECTING DEVICE, INSTALLED IN AC…
  • Class BInspected May 4, 2026
    § 27-2045(B)(1)(B) HMC, § 12-06, § 12-07, § 12-09 RCNY REPAIR, REPLACE OR PROVIDE AN APPROVED AND OPERATIONAL CARBON MONOXIDE DETECTING DEVI…
  • Class BInspected May 4, 2026
    § 27-2005 ADM CODE REPAIR THE BROKEN OR DEFECTIVE PLASTERED SURFACES AND PAINT IN A UNIFORM COLOR AT CEILING AND WEST WALL IN THE BATHROOM L…
  • Class CInspected May 4, 2026
    HMC ADM CODE: § 27-2017.4 ABATE THE INFESTATION CONSISTING OF MICE IN THE ENTIRE APARTMENT LOCATED AT APT 4C, 4th STORY, 1st APARTMENT FROM…
🔒 See closure dates + classification on archived violations →

Recent ACRIS activity

5 documents in the last 5 years (most recent May 20, 2021).

Frequently asked questions about 1974 51 STREET

Who owns 1974 51 STREET?

The current registered owner of record for 1974 51 STREET per NYC PLUTO is J 1974 LLC. MetroDeeds shows no confirmed ACRIS deed transfer for this BBL in the last 5 years of recorded NYC public-records data.

When was 1974 51 STREET last sold?

MetroDeeds shows no confirmed ACRIS deed transfer for 1974 51 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 1974 51 STREET have?

No open HPD housing-maintenance code violations are on record for 1974 51 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 1974 51 STREET?

NYC Department of Finance assesses 1974 51 STREET at $1.31M 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 1974 51 STREET and what does that mean?

1974 51 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

Go deeper on this building

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Every deed, every violation, court cases, mortgages, and operator portfolio — in one panel.
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