3721 NEPTUNE AVENUE
3721 NEPTUNE AVENUE is a Class B2 (two-family frame) building in Brooklyn (BBL 3070000049) built in 1925, with 2 residential units across 3 floors.
The building is in NYC community district 313, council district 47, zoning district R3-1, on a 3,000-square-foot lot with a building footprint of 2,961 square feet.
The current registered owner of record per NYC PLUTO is YANG, CHANG R.
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
- Site ManagerCHANG YANG
Most recent deed
Activity timeline
Recent ACRIS documents (last 5)
Building stats
- Zoning:
- R3-1
- Lot size:
- 3,000 sqft
- Building area:
- 2,961 sqft
- Floors:
- 2.5
- Assessed value:
- $70K
- Community district:
- 313
- Council district:
- 47
HPD violations
Recent HPD violation details
- 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…
- Class IInspected Apr 21, 2021§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 BInspected Sep 17, 2019§ 27-2077 ADM CODE - DISCONTINUE THE ROOMING UNIT AT BASEMENT
- Class AInspected Sep 17, 2019§ 27-2005 HMC: POST, IN A FORM APPROVED BY THE COMMISSIONER, AND MAINTAIN A NOTICE IN A COMMON AREA OF THE BUILDING REGARDING THE PROCEDURES…
- Class AInspected Jun 10, 2004§ 27-2005 ADMIN. CODE: PROPERLY REPAIR THE BROKEN OR DEFECTIVE TRIP LEVER STOPPER BATHTUB BATHROOM 2 STY. APT. 2.
Recent ACRIS activity
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Frequently asked questions about 3721 NEPTUNE AVENUE
Who owns 3721 NEPTUNE AVENUE?
The current registered owner of record for 3721 NEPTUNE AVENUE per NYC PLUTO is YANG, CHANG R. MetroDeeds shows no confirmed ACRIS deed transfer for this BBL in the last 5 years of recorded NYC public-records data.
When was 3721 NEPTUNE AVENUE last sold?
MetroDeeds shows no confirmed ACRIS deed transfer for 3721 NEPTUNE 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 3721 NEPTUNE AVENUE have?
No open HPD housing-maintenance code violations are on record for 3721 NEPTUNE 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 3721 NEPTUNE AVENUE?
NYC Department of Finance assesses 3721 NEPTUNE AVENUE at $70K 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 3721 NEPTUNE AVENUE and what does that mean?
3721 NEPTUNE AVENUE is NYC building class B2 — Two-family frame. A two-family residential building of frame construction. 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.