631 BAY RIDGE AVENUE
631 BAY RIDGE AVENUE is a Class C3 (walk-up, pre-1929) building in Brooklyn (BBL 3058660071) built in 1931, with 4 residential units across 2 floors.
The building is in NYC community district 310, council district 47, zoning district R4-1, on a 2,467-square-foot lot with a building footprint of 3,198 square feet.
The current registered owner of record per NYC PLUTO is RUI EN LLC.
The most recent ACRIS deed transfer for this BBL was recorded on November 2, 2023 when THE GEORGE KABOURIS LIVING TRUST; GEORGE KABOURIS, TRUSTEE conveyed the property to RUI EN LLC for $1.78M. The transaction was recorded as cash (no paired mortgage instrument).
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 OfficerYizhen He
- Corporate OwnerRui En LLC
Most recent deed
Recent ACRIS documents (last 2)
Building stats
- Zoning:
- R4-1
- Lot size:
- 2,467 sqft
- Building area:
- 3,198 sqft
- Floors:
- 2
- Assessed value:
- $338K
- Community district:
- 310
- Council district:
- 47
HPD violations
Recent HPD violation details
- Class AInspected May 1, 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 IInspected Nov 19, 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 AInspected Jun 6, 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 AInspected Apr 8, 2024(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 IInspected Nov 21, 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…
Recent ACRIS activity
Frequently asked questions about 631 BAY RIDGE AVENUE
Who owns 631 BAY RIDGE AVENUE?
The current registered owner of record for 631 BAY RIDGE AVENUE per NYC PLUTO is RUI EN LLC. The most recent ACRIS deed transfer for this BBL was recorded on November 2, 2023 when the property was conveyed to RUI EN LLC. PLUTO ownership is refreshed monthly by NYC Department of Finance; the registered owner may not reflect transactions recorded within the last 30 days.
When was 631 BAY RIDGE AVENUE last sold?
The most recent ACRIS deed transfer for 631 BAY RIDGE AVENUE was recorded on November 2, 2023, when THE GEORGE KABOURIS LIVING TRUST; GEORGE KABOURIS, TRUSTEE conveyed the property to RUI EN LLC for $1.78M. The transaction was recorded as cash (no paired mortgage instrument).
How many HPD violations does 631 BAY RIDGE AVENUE have?
No open HPD housing-maintenance code violations are on record for 631 BAY RIDGE 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 631 BAY RIDGE AVENUE?
NYC Department of Finance assesses 631 BAY RIDGE AVENUE at $338K 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 631 BAY RIDGE AVENUE and what does that mean?
631 BAY RIDGE AVENUE is NYC building class C3 — Walk-up, pre-1929. A walk-up apartment building constructed before 1929, typically 3-6 stories and often rent-stabilized. 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.