257 HART STREET
257 HART STREET is a Class C2 (walk-up, five to six) building in Brooklyn (BBL 3017690052) built in 1931, with 6 residential units across 3 floors.
The building is in NYC community district 303, council district 36, zoning district R6B, on a 2,650-square-foot lot with a building footprint of 5,985 square feet.
The current registered owner of record per NYC PLUTO is 257 HART 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 OfficerMARK BERKOWITZ
- Corporate Owner257 HART LLC
Most recent deed
Recent ACRIS documents (last 4)
Building stats
- Zoning:
- R6B
- Lot size:
- 2,650 sqft
- Building area:
- 5,985 sqft
- Floors:
- 3
- Assessed value:
- $557K
- Community district:
- 303
- Council district:
- 36
HPD violations
Recent HPD violation details
- Class BInspected Jul 24, 2024§ 27-2005 ADM CODE REPAIR THE ROOF SO THAT IT WILL NOT LEAK OVER THE CEILING IN THE BATHROOM LOCATED AT APT 3B, 3rd STORY
- Class AInspected Jul 24, 2024§ 27-2017.3 HMC: TRACE AND REPAIR THE SOURCE AND ABATE THE VISIBLE MOLD CONDITION... LESS THAN 10SQ FT AT CEILING IN THE BATHROOM LOCATED AT…
- Class AInspected Jul 24, 2024§ 27-2045 ADM CODE POST A PROPER NOTICE OF SMOKE DETECTOR REQUIREMENTS, IN A FORM APPROVED BY THE COMMISSIONER, AT OR NEAR THE MAIL BOX AT P…
- Class AInspected Jul 24, 2024§ 26-1103 ADMIN. CODE: POST AND MAINTAIN A PROPER NOTICE ON WALL OF THE ENTRANCE STORY IN ENGLISH AND SPANISH ON THE AVAILABILITY OF THE AGE…
- Class AInspected Jul 24, 2024§ 27-2005 HMC: POST, IN A FORM APPROVED BY THE COMMISSIONER, AND MAINTAIN A NOTICE IN A COMMON AREA OF THE BUILDING REGARDING THE PROCEDURES…
Recent ACRIS activity
Frequently asked questions about 257 HART STREET
Who owns 257 HART STREET?
The current registered owner of record for 257 HART STREET per NYC PLUTO is 257 HART LLC. MetroDeeds shows no confirmed ACRIS deed transfer for this BBL in the last 5 years of recorded NYC public-records data.
When was 257 HART STREET last sold?
MetroDeeds shows no confirmed ACRIS deed transfer for 257 HART 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 257 HART STREET have?
No open HPD housing-maintenance code violations are on record for 257 HART 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 257 HART STREET?
NYC Department of Finance assesses 257 HART STREET at $557K 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 257 HART STREET and what does that mean?
257 HART STREET is NYC building class C2 — Walk-up, five to six. A 3-to-6-story walk-up apartment building, 5-6 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.