1251 EAST 21 STREET
1251 EAST 21 STREET is a Class A1 (one-family two-story) building in Brooklyn (BBL 3076210035) built in 1920, with 1 residential unit across 3 floors.
The building is in NYC community district 314, council district 45, zoning district R2, on a 4,000-square-foot lot with a building footprint of 2,767 square feet.
The current registered owner of record per NYC PLUTO is SITT, CARYN.
The most recent ACRIS deed transfer for this BBL was recorded on February 18, 2026 when Sitt, Claire; Sitt, A/k/a Claire Caryn conveyed the property to Blau, Robert L for $1.80M. The transaction was financed with a $400K mortgage from Usalliance Federal Credit Union.
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
Most recent deed
Recent ACRIS documents (last 4)
Building stats
- Zoning:
- R2
- Lot size:
- 4,000 sqft
- Building area:
- 2,767 sqft
- Floors:
- 2.75
- Assessed value:
- $99K
- Community district:
- 314
- Council district:
- 45
HPD violations
Recent HPD violation details
Recent ACRIS activity
Frequently asked questions about 1251 EAST 21 STREET
Who owns 1251 EAST 21 STREET?
The current registered owner of record for 1251 EAST 21 STREET per NYC PLUTO is SITT, CARYN. The most recent ACRIS deed transfer for this BBL was recorded on February 18, 2026 when the property was conveyed to Blau, Robert L. 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 1251 EAST 21 STREET last sold?
The most recent ACRIS deed transfer for 1251 EAST 21 STREET was recorded on February 18, 2026, when Sitt, Claire; Sitt, A/k/a Claire Caryn conveyed the property to Blau, Robert L for $1.80M. The transaction was financed with a $400K mortgage from Usalliance Federal Credit Union.
How many HPD violations does 1251 EAST 21 STREET have?
No open HPD housing-maintenance code violations are on record for 1251 EAST 21 STREET. The building is not registered with NYC HPD's landlord-registration system, which is typical for owner-occupied 1-2 family dwellings. HPD violation data is pulled daily from the NYC Open Data violations feed.
What is the assessed value of 1251 EAST 21 STREET?
NYC Department of Finance assesses 1251 EAST 21 STREET at $99K 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 1251 EAST 21 STREET and what does that mean?
1251 EAST 21 STREET is NYC building class A1 — One-family two-story. A single-family detached two-story dwelling. 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.