663 CLASSON AVENUE
663 CLASSON AVENUE is a Class S5 (elevator + store) building in Brooklyn (BBL 3011420002) built in 1931, with 7 residential units across 4 floors.
The building is in NYC community district 308, council district 35, zoning district R6A, on a 2,200-square-foot lot with a building footprint of 6,500 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
HPD registered contacts
- Head OfficerMATTHEW KELLER
- Corporate OwnerPROSPECT AFFORDABLE PACKAGE LLC
- Managing AgentNIEUW AMSTERDAM PROPERTY MANAGEMENT
- Site ManagerGABE STONE
Most recent deed
Recent ACRIS documents (last 3)
Building stats
- Zoning:
- R6A
- Lot size:
- 2,200 sqft
- Building area:
- 6,500 sqft
- Floors:
- 4
- Assessed value:
- $1.2M
- Community district:
- 308
- Council district:
- 35
HPD violations
Recent HPD violation details
- Class CInspected Apr 20, 2026§ 27-2033 ADM CODE PROVIDE READY ACCESS TO BUILDINGS HEATING SYSTEM DOOR TO BOILER ROOM LOCKED AT BASEMENT AT BASEMENT AT EAST
- Class CInspected Apr 20, 2026§ 27-2031 ADM CODE PROVIDE HOT WATER AT ALL HOT WATER FIXTURES IN THE ENTIRE APARTMENT LOCATED AT APT 2L, 2nd STORY, 2nd APARTMENT FROM SOUT…
- Class BInspected Mar 18, 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 Mar 18, 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 CInspected Mar 18, 2026567 (C) § 27-2017, 27-2017.1, 27-2017.4, 27-2017.5, 27-2017.8, 27-2019, 27-2021 HMC: ABATE THE NUISANCE CONSISTING OF EVIDENCE OF RATS AND A…
Recent ACRIS activity
Other buildings in this portfolio
- 483 ST MARKS AVENUE140 violations
- 808 BERGEN STREET94 violations
- 1020 PACIFIC STREET54 violations
- 634 CLASSON AVENUE18 violations
Frequently asked questions about 663 CLASSON AVENUE
Who owns 663 CLASSON AVENUE?
The current registered owner of record for 663 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 663 CLASSON AVENUE last sold?
MetroDeeds shows no confirmed ACRIS deed transfer for 663 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 663 CLASSON AVENUE have?
No open HPD housing-maintenance code violations are on record for 663 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 663 CLASSON AVENUE?
NYC Department of Finance assesses 663 CLASSON AVENUE at $1.19M 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 663 CLASSON AVENUE and what does that mean?
663 CLASSON AVENUE is NYC building class S5 — Elevator + store. An elevator apartment with one or more store 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.