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NYC Building Records · BBL 3011420008

651 CLASSON AVENUE

Brooklyn · Block 1142 · Lot 8 · Walk-up, over six families (Class C1)

651 CLASSON AVENUE is a Class C1 (walk-up, over six families) building in Brooklyn (BBL 3011420008) built in 1930, with 15 residential units across 4 floors.

The building is in NYC community district 308, council district 35, zoning district R6A, on a 4,400-square-foot lot with a building footprint of 13,000 square feet.

The current registered owner of record per NYC PLUTO is HP MJM HOUSING DEVELOPMENT FUND COMPANY, INC.,.

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

HP MJM HOUSING DEVELOPMENT FUND COMPANY, INC.,
HPD-registered head officer: MATTHEW KELLER

HPD registered contacts

People legally accountable to HPD for conditions at this building, in registration-priority order:
  • Head OfficerMATTHEW KELLER
  • Corporate OwnerPROSPECT AFFORDABLE PACKAGE LLC
  • Managing AgentNIEUW AMSTERDAM PROPERTY MANAGEMENT
  • Site ManagerGABE STONE

Most recent deed

Last transferred on Feb 16, 2021 to OHR OLAM REALTY LLC.
Previous owner: 649-651 CLASSON LLC
Cash sale: no recorded mortgage tied to this transfer.
🔒 See all transfers before the 2021 sale →

Recent ACRIS documents (last 2)

DateTypeAmountParties
Feb 16, 2021DEEDNot disclosedParties redacted — full names in MetroDeeds Scout+
Feb 16, 2021DEEDNot disclosedParties redacted — full names in MetroDeeds Scout+
🔒 Reveal the 2 redacted buyer/seller names above →

Building stats

Units
15
Year built
1930
Class
C1
Borough
Brooklyn
Zoning:
R6A
Lot size:
4,400 sqft
Building area:
13,000 sqft
Floors:
4
Assessed value:
$710K
Community district:
308
Council district:
35

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 CInspected Apr 13, 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 CInspected Dec 16, 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 BInspected Oct 27, 2025
    § 27-2005 HMC: PROPERLY REPAIR OR REPLACE THE BROKEN OR DEFECTIVE ELECTRIC BELL BUZZER INTERCOM SYSTEM FROM 1ST STORY PUBLIC HALL LEADING TO…
  • Class BInspected Oct 27, 2025
    § 27-2026 ADM CODE REPAIR THE LEAKY AND/OR DEFECTIVE WATER SUPPLY PIPE AT WATER CLOSET IN THE BATHROOM LOCATED AT APT 4A, 4th STORY, 1st APA…
  • Class BInspected Sep 17, 2025
    § 27-2005 HMC: PROPERLY REPAIR OR REPLACE THE BROKEN OR DEFECTIVE LATCH AT VESTIBULE DOOR , 1st STORY
🔒 See closure dates + classification on archived violations →

Recent ACRIS activity

2 documents in the last 5 years (most recent Feb 16, 2021).

Other buildings in this portfolio

OHR OLAM REALTY LLC controls 14 NYC buildings. Top properties by HPD violation count:

Frequently asked questions about 651 CLASSON AVENUE

Who owns 651 CLASSON AVENUE?

The current registered owner of record for 651 CLASSON AVENUE per NYC PLUTO is HP MJM HOUSING DEVELOPMENT FUND COMPANY, INC.,. MetroDeeds shows no confirmed ACRIS deed transfer for this BBL in the last 5 years of recorded NYC public-records data.

When was 651 CLASSON AVENUE last sold?

MetroDeeds shows no confirmed ACRIS deed transfer for 651 CLASSON AVENUE 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 651 CLASSON AVENUE have?

No open HPD housing-maintenance code violations are on record for 651 CLASSON AVENUE 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 651 CLASSON AVENUE?

NYC Department of Finance assesses 651 CLASSON AVENUE at $710K 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 651 CLASSON AVENUE and what does that mean?

651 CLASSON AVENUE 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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