28 Zwicky Avenue, Staten Island
Single family · built 1955 · Block 3692, Lot 23.
Building permits
- New Building — Residential, filed Dec 11, 2025, 2 units, 3 stories, described as “Proposed 3-story (BC) 2-story (ZR) two family semi-detached residence with cellar (ZR) on one tax lot comprised of one zoning lot.”
- Alteration, filed Jul 29, 2026, estimated cost $20K, described as “Installation of new fire sprinkler system with valves and meters for same”
- Demolition, filed Oct 30, 2025, estimated cost $50K, described as “Full demolition of 1 story residential building. On-site and off-site fill not to exceed 300 cubic yards.”
- Alteration, filed Mar 5, 2025, estimated cost $5K, described as “Installation of a proposed plywood construction fence.”
Property taxes
- Assessment
- $37,980
- 2026–27 tax
- $4,761
- Market value (city estimate)
- $633,000
- Taxable value
- $23,995
- Assessed land
- $9,600
- Assessed improvements
- $28,380
Zoning
R3-1: floor area ratio 0.15 built, 0.75 allowed by base zoning.
Flood zone
Current FEMA flood map: zone AE, high risk: a 1% chance of flooding each year, base flood elevation 10 ft (NGVD29). FEMA’s preliminary map: zone AE, high risk: a 1% chance of flooding each year, base flood elevation 12 ft (NAVD88).
Recent sales
- Mar 19, 2019: $465,000, 696 sq ft ($668 per sq ft)
Open-market sales since 2016, from the Department of Finance’s sales files.