720 KNICKERBOCKER AVENUE
720 KNICKERBOCKER AVENUE is a Class C1 (walk-up, over six families) building in Brooklyn (BBL 3033910031) built in 1910, with 8 residential units across 3 floors.
The building is in NYC community district 304, council district 37, zoning district R6, on a 2,600-square-foot lot with a building footprint of 5,412 square feet.
The current registered owner of record per NYC PLUTO is STONEMOUNTAIN EQUITIES 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 BRKOWITZ
- Corporate OwnerSTONEMOUNTAIN EQUITIES LLC
- Managing AgentMARK BERKOWITZ
Most recent deed
Recent ACRIS documents (last 5)
Building stats
- Zoning:
- R6
- Lot size:
- 2,600 sqft
- Building area:
- 5,412 sqft
- Floors:
- 3
- Assessed value:
- $515K
- Community district:
- 304
- Council district:
- 37
HPD violations
Recent HPD violation details
- Class BInspected Sep 15, 2025§ 27-2005 ADM CODE REPAIR THE ROOF SO THAT IT WILL NOT LEAK AT THE CEILING IN THE 3rd ROOM FROM NORTH LOCATED AT APT 8, 3rd STORY, 1st APART…
- Class BInspected Sep 15, 2025§ 27-2005 ADM CODE REPAIR THE ROOF SO THAT IT WILL NOT LEAK AT CEILING IN THE PRIVATE HALLWAY FROM NORTH LOCATED AT APT 8, 3rd STORY, 1st AP…
- Class BInspected Sep 15, 2025§ 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 Sep 15, 2025§ 27-2005 ADM CODE REPAIR THE BROKEN OR DEFECTIVE PLASTERED SURFACES AND PAINT IN A UNIFORM COLOR AT CEILING IN THE 3rd ROOM FROM NORTH LOCA…
- Class BInspected Sep 15, 2025§ 27-2005 ADM CODE REPAIR THE BROKEN OR DEFECTIVE PLASTERED SURFACES AND PAINT IN A UNIFORM COLOR AT CEILING IN THE PRIVATE HALLWAY FROM NOR…
Recent ACRIS activity
Frequently asked questions about 720 KNICKERBOCKER AVENUE
Who owns 720 KNICKERBOCKER AVENUE?
The current registered owner of record for 720 KNICKERBOCKER AVENUE per NYC PLUTO is STONEMOUNTAIN EQUITIES LLC. MetroDeeds shows no confirmed ACRIS deed transfer for this BBL in the last 5 years of recorded NYC public-records data.
When was 720 KNICKERBOCKER AVENUE last sold?
MetroDeeds shows no confirmed ACRIS deed transfer for 720 KNICKERBOCKER 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 720 KNICKERBOCKER AVENUE have?
No open HPD housing-maintenance code violations are on record for 720 KNICKERBOCKER 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 720 KNICKERBOCKER AVENUE?
NYC Department of Finance assesses 720 KNICKERBOCKER AVENUE at $515K 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 720 KNICKERBOCKER AVENUE and what does that mean?
720 KNICKERBOCKER 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.