523 KNICKERBOCKER AVENUE
523 KNICKERBOCKER AVENUE is a Class C1 (walk-up, over six families) building in Brooklyn (BBL 3033260008) built in 1905, with 8 residential units across 4 floors.
The building is in NYC community district 304, council district 37, zoning district R6, on a 3,000-square-foot lot with a building footprint of 9,000 square feet.
The current registered owner of record per NYC PLUTO is 523 ASSETS 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 17, 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 OfficerMAURICE SOHAYE
- Corporate Owner523 ASSETS LLC
Most recent deed
Recent ACRIS documents (last 5)
Building stats
- Zoning:
- R6
- Lot size:
- 3,000 sqft
- Building area:
- 9,000 sqft
- Floors:
- 4
- Assessed value:
- $676K
- Community district:
- 304
- Council district:
- 37
HPD violations
Recent HPD violation details
- Class AInspected Apr 9, 2021(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 BInspected Dec 7, 2018§ 27-2037, 2038 HMC: PROVIDE A SAFE AND ADEQUATE SUPPLY OF ELECTRIC SERVICE TO THE FIXTURES AT CEILING IN THE 1st ROOM FROM EAST LOCATED AT…
- Class BInspected Dec 7, 2018§ 27-2005 ADM CODE REPAIR THE BROKEN OR DEFECTIVE PLASTERED SURFACES AND PAINT IN A UNIFORM COLOR THE CEILING IN THE 1st ROOM FROM EAST LOCA…
- Class BInspected Dec 7, 2018§ 27-2005 ADM CODE REPAIR THE ROOF SO THAT IT WILL NOT LEAK OVER CEILING IN THE 1st ROOM FROM EAST LOCATED AT APT 4L, 4th STORY, 1st APARTME…
- Class BInspected Dec 7, 2018§ 27-2005, 2007 ADM CODE ARRANGE AND MAKE SELF-CLOSING THE DOORS ... IN THE ENTRANCE LOCATED AT APT 4L, 4th STORY, 1st APARTMENT FROM WEST A…
Recent ACRIS activity
Frequently asked questions about 523 KNICKERBOCKER AVENUE
Who owns 523 KNICKERBOCKER AVENUE?
The current registered owner of record for 523 KNICKERBOCKER AVENUE per NYC PLUTO is 523 ASSETS LLC. MetroDeeds shows no confirmed ACRIS deed transfer for this BBL in the last 5 years of recorded NYC public-records data.
When was 523 KNICKERBOCKER AVENUE last sold?
MetroDeeds shows no confirmed ACRIS deed transfer for 523 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 523 KNICKERBOCKER AVENUE have?
No open HPD housing-maintenance code violations are on record for 523 KNICKERBOCKER AVENUE as of May 17, 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 523 KNICKERBOCKER AVENUE?
NYC Department of Finance assesses 523 KNICKERBOCKER AVENUE at $676K 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 523 KNICKERBOCKER AVENUE and what does that mean?
523 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.