721 HART STREET
721 HART STREET is a Class D6 (elevator, pre-1929) building in Brooklyn (BBL 3032180042) built in 2017, with 33 residential units across 5 floors.
The building is in NYC community district 304, council district 34, zoning district R6, on a 10,000-square-foot lot with a building footprint of 26,581 square feet.
The current registered owner of record per NYC PLUTO is SL HART HOLDINGS 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 OfficerLAZER WALDMAN
- Corporate OwnerSL HART HOLDINGS LLC
- Managing AgentMARK HALPERN
Most recent deed
Recent ACRIS documents (last 5)
Building stats
- Zoning:
- R6
- Lot size:
- 10,000 sqft
- Building area:
- 26,581 sqft
- Floors:
- 5
- Assessed value:
- $2.1M
- Community district:
- 304
- Council district:
- 34
HPD violations
Recent HPD violation details
- Class CInspected May 27, 2024§ 27-2026, 2027 HMC: PROPERLY REPAIR THE SOURCE AND ABATE THE EVIDENCE OF A WATER LEAK AT CEILING AT PUBLIC HALL, 1st STORY
- Class BInspected May 27, 2024§ 27-2005 ADM CODE PROPERLY REPAIR WITH SIMILAR MATERIAL THE BROKEN OR DEFECTIVE FIRE RETARDANT MATERIAL AT CEILING AT PUBLIC HALL, 1st STOR…
- Class AInspected May 27, 2024§ 27-2013 ADM CODE PAINT WITH LIGHT COLORED PAINT TO THE SATISFACTION OF THIS DEPARTMENT AT CEILING AT PUBLIC HALL, 1st STORY
- Class BInspected Jan 12, 2024§ 27-2005 ADM CODE REPAIR THE BROKEN OR DEFECTIVE PLASTERED SURFACES AND PAINT IN A UNIFORM COLOR CEILING, WEST AND SOUTH WALLS AT UPPER LEV…
- Class AInspected Jan 12, 2024§ 27-2005 ADM CODE REPAIR THE BROKEN OR DEFECTIVE PLASTERED SURFACES AND PAINT IN A UNIFORM COLOR CEILING AT LOWER LEVEL IN THE 1st ROOM FRO…
Recent ACRIS activity
Frequently asked questions about 721 HART STREET
Who owns 721 HART STREET?
The current registered owner of record for 721 HART STREET per NYC PLUTO is SL HART HOLDINGS LLC. MetroDeeds shows no confirmed ACRIS deed transfer for this BBL in the last 5 years of recorded NYC public-records data.
When was 721 HART STREET last sold?
MetroDeeds shows no confirmed ACRIS deed transfer for 721 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 721 HART STREET have?
No open HPD housing-maintenance code violations are on record for 721 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 721 HART STREET?
NYC Department of Finance assesses 721 HART STREET at $2.08M 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 721 HART STREET and what does that mean?
721 HART STREET is NYC building class D6 — Elevator, pre-1929. A pre-1929 elevator apartment building. 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.