4237 BYRON AVENUE
4237 BYRON AVENUE is a Class C0 (walk-up, 3+ families) building in Bronx (BBL 2049980085) built in 1899, with 3 residential units across 2 floors.
The building is in NYC community district 212, council district 11, zoning district R5, on a 2,533-square-foot lot with a building footprint of 3,522 square feet.
The current registered owner of record per NYC PLUTO is SADLER, OBRIEN.
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 OfficerOBRIEN SADLER
Most recent deed
Recent ACRIS documents (last 4)
Building stats
- Zoning:
- R5
- Lot size:
- 2,533 sqft
- Building area:
- 3,522 sqft
- Floors:
- 2
- Assessed value:
- $55K
- Community district:
- 212
- Council district:
- 11
HPD violations
Recent HPD violation details
- Class IInspected Nov 24, 2025§27-2107 ADM CODE OWNER FAILED TO FILE A VALID REGISTRATION STATEMENT WITH THE DEPARTMENT AS REQUIRED BY ADM CODE §27-2097 AND IS THEREFORE…
- Class IInspected Dec 3, 2024§27-2107 ADM CODE OWNER FAILED TO FILE A VALID REGISTRATION STATEMENT WITH THE DEPARTMENT AS REQUIRED BY ADM CODE §27-2097 AND IS THEREFORE…
- Class IInspected Nov 27, 2023§27-2107 ADM CODE OWNER FAILED TO FILE A VALID REGISTRATION STATEMENT WITH THE DEPARTMENT AS REQUIRED BY ADM CODE §27-2097 AND IS THEREFORE…
- Class IInspected Nov 16, 2022§27-2107 ADM CODE OWNER FAILED TO FILE A VALID REGISTRATION STATEMENT WITH THE DEPARTMENT AS REQUIRED BY ADM CODE §27-2097 AND IS THEREFORE…
- Class IInspected Mar 16, 2022§27-2107 ADM CODE OWNER FAILED TO FILE A VALID REGISTRATION STATEMENT WITH THE DEPARTMENT AS REQUIRED BY ADM CODE §27-2097 AND IS THEREFORE…
Recent ACRIS activity
Frequently asked questions about 4237 BYRON AVENUE
Who owns 4237 BYRON AVENUE?
The current registered owner of record for 4237 BYRON AVENUE per NYC PLUTO is SADLER, OBRIEN. MetroDeeds shows no confirmed ACRIS deed transfer for this BBL in the last 5 years of recorded NYC public-records data.
When was 4237 BYRON AVENUE last sold?
MetroDeeds shows no confirmed ACRIS deed transfer for 4237 BYRON 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 4237 BYRON AVENUE have?
No open HPD housing-maintenance code violations are on record for 4237 BYRON 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 4237 BYRON AVENUE?
NYC Department of Finance assesses 4237 BYRON AVENUE at $55K 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 4237 BYRON AVENUE and what does that mean?
4237 BYRON AVENUE is NYC building class C0 — Walk-up, 3+ families. A 3-to-6-story walk-up apartment building (no elevator), 3 or more 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.