307 KNICKERBOCKER AVENUE
307 KNICKERBOCKER AVENUE is a Class S5 (elevator + store) building in Brooklyn (BBL 3032200002) built in 1931, with 7 residential units across 4 floors.
The building is in NYC community district 304, council district 34, zoning district R6, on a 2,500-square-foot lot with a building footprint of 6,500 square feet.
The current registered owner of record per NYC PLUTO is AMBROSINO 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 OfficerANTONIO AMBROSINO
- Corporate OwnerAMBROSINO EQUITIES LLC
Most recent deed
Recent ACRIS documents (last 5)
Building stats
- Zoning:
- R6
- Lot size:
- 2,500 sqft
- Building area:
- 6,500 sqft
- Floors:
- 4
- Assessed value:
- $553K
- Community district:
- 304
- Council district:
- 34
HPD violations
Recent HPD violation details
- Class AInspected May 5, 2026(A) § HMC:FILE ANNUAL BEDBUG REPORT IN ACCORDANCE WITH HPD RULE AS DESCRIBED ON THE BACK OF THIS NOTICE OF VIOLATION OR AS DESCRIBED ON HPD…
- Class AInspected Jun 10, 2025(A) § HMC:FILE ANNUAL BEDBUG REPORT IN ACCORDANCE WITH HPD RULE AS DESCRIBED ON THE BACK OF THIS NOTICE OF VIOLATION OR AS DESCRIBED ON HPD…
- Class CInspected Sep 1, 2024HMC ADM CODE: § 27-2017.4 ABATE THE INFESTATION CONSISTING OF ROACHES IN THE ENTIRE APARTMENT LOCATED AT APT 4L, 4th STORY, 2nd APARTMENT FR…
- Class CInspected Sep 1, 2024HMC ADM CODE: § 27-2017.4 ABATE THE INFESTATION CONSISTING OF MICE IN THE ENTIRE APARTMENT LOCATED AT APT 4L, 4th STORY, 2nd APARTMENT FROM…
- Class AInspected Sep 1, 2024§ 27-2013 ADM CODE PAINT WITH LIGHT COLORED PAINT TO THE SATISFACTION OF THIS DEPARTMENT THE CEILING AND SOUTH WALL IN THE BATHROOM LOCATED…
Recent ACRIS activity
Other buildings in this portfolio
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Frequently asked questions about 307 KNICKERBOCKER AVENUE
Who owns 307 KNICKERBOCKER AVENUE?
The current registered owner of record for 307 KNICKERBOCKER AVENUE per NYC PLUTO is AMBROSINO 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 307 KNICKERBOCKER AVENUE last sold?
MetroDeeds shows no confirmed ACRIS deed transfer for 307 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 307 KNICKERBOCKER AVENUE have?
No open HPD housing-maintenance code violations are on record for 307 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 307 KNICKERBOCKER AVENUE?
NYC Department of Finance assesses 307 KNICKERBOCKER AVENUE at $553K 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 307 KNICKERBOCKER AVENUE and what does that mean?
307 KNICKERBOCKER 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.