21 Sloane Avenue
Staten Island, NY 10306BBL 5-00952-0085Map
Owner of record: Richard P. Castellano, As Trustee
21 Sloane Avenue is an one-family home built in 1970 in Staten Island, 10306. It has 1 residential unit across 1 floor. The owner of record is Richard P. Castellano, As Trustee. HPD has no housing violations on record for this property.
- HPD violations
- 0
- DOB violations
- 0
- ECB violations
- 0
- HPD complaints
- 1
What to know
No open immediately-hazardous violations among recent records.
HPD has not cited this building.
No balance due on recent ECB violations.
Rent stabilization
No rent-stabilized units in 2018–2024 tax bills
Violations
Most recent first. Showing up to 50 per agency.
HPD housing violations · 0
No HPD violations on record
DOB building violations · 0
No DOB violations on record
ECB violations · 0
No ECB violations on record
Complaints
- Plumbing
Water supply
Aug 28, 2025 · Apt PVT
Close
Sales history
No recorded sales in our data
Building details
- Building type
- One-family home (A2)
- Year built
- 1970
- Floors
- 1
- Residential units
- 1
- Building area
- 1,840 ft²
- Lot area
- 11,469 ft²
- Zoning
- R1-2
- Community board
- 502
- Council district
- 50
- Block / lot
- 952 / 85
- Assessed value
- $73,320
- Landmark / historic district
- No
Questions about 21 Sloane Avenue
Who owns 21 Sloane Avenue?
The owner of record in NYC Department of City Planning PLUTO data is Richard P. Castellano, As Trustee.
Does 21 Sloane Avenue have violations?
NYC HPD has no housing violations on record for this property.
Is 21 Sloane Avenue rent stabilized?
No rent-stabilized units appear in its 2018–2024 tax bills. Individual apartments can still be regulated, so request the rent history from NYS Homes and Community Renewal if unsure.
When was 21 Sloane Avenue built?
City records list 1970 as the year it was built.
How many apartments are in 21 Sloane Avenue?
It has 1 residential units.
Source: NYC Open Data (DCP PLUTO, HPD, DOB, ECB/OATH, DOF). Records can lag the city's systems. Data refreshed weekly.