NY Property Records
821 Castleton Avenue
821 Castleton Avenue
Staten Island · Richmond County · 10310
04 · Mixed Res & Commercial
Owner of record
OwnerBianca Formica
Assessment · 2025 roll
Land assessed$31,950
Total assessed$258,300
Est. annual tax$15,523 (2027, excl. special districts)
Building
StylePrimarily Four Family with Store or Office
Year built1930
Living area2,400 sq ft
Lot
Size0.15 acres (GIS)
Frontage × depth40 × 166 ft
Lot sq ft6,694
Zoning
DistrictR3X
Commercial overlayC1-1
FAR0.6 built · 0.75 max residential · 1.0 max facility
Zoning map21a
Recorded documents · 1
NYC REAL PROPERTY TRANSFER TAX
Nov 17, 2025
grantor/seller Bianca Formica; Estate Of William J. Formica +1
grantee/buyer Andrea J. Formica; Bianca Formica +3
View on ACRIS ↗DOB complaints — total 2 · open 0 · closed 2
No DOB violations or HPD violations on file.
Deed & identifiers
SBL5001510076
SWIS640100
Parcel ID6401005001510076
Who owns 821 Castleton Avenue?
821 Castleton Avenue, Staten Island is owned by Bianca Formica per the 2025 NYS assessment roll.
Nearby on Castleton Avenue
Public record, NYS tax roll 2025. Values are the assessor's, not an appraisal. Provided for informational purposes only — accuracy and completeness are not warranted or guaranteed; verify against official sources before relying on it. Disclaimer · Request redaction
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