321 Liberty Avenue, Staten Island
Two-family · built 2022 · Block 3380, Lot 40.
Building permits
- New Building — Residential, filed Oct 10, 2025, 2 units, 3 stories, described as “Two family semi-detached residence.”
- New Building — Residential, filed May 19, 2022, estimated cost $300K, 2 units, 3 stories, described as “Application is filed a new 2-story, 2-family, semi-detached residence as well as to obtain new certificate of occupancy for each residence. All work as per plans submitted herewith.”
- Alteration, filed Jan 19, 2024, estimated cost $10K, described as “Renovate 1ST floor to propose new exterior door and cosmetic work as per plan. No change to use, egress or occupancy.”
- Alteration, filed Jul 21, 2022, estimated cost $45K, described as “Application is filed for plumbing work only in conjunction with new building filed under document #S00728227-I1”
- Alteration, filed Apr 12, 2022, estimated cost $5K, described as “Application filled for the instalation of a new 9'-0'' curb cut along liberty avenue, a distance of 36'-4'' from simpson street. No change to use, egress or occupancy ander this application.”
- Alteration, filed Apr 12, 2022, estimated cost $5K, described as “Application filled for the instalation of a new 18'-0'' curb cut along simpson street, a distance of 90'-5'' from liberty avenue. No change to use, egress or occupancy ander this application.”
- Alteration, filed Feb 24, 2022, estimated cost $5K, described as “Filed for the installation of 8.0' high temporary construction fence filed in conjunction with demolition of existing 2-1/2 story frame building & future new development. All work as per plans submitted herewith. Filing includes 323…”
Property taxes
- Assessment
- $77,580
- 2026–27 tax
- $14,613
- Market value (city estimate)
- $1,293,000
- Taxable value
- $73,645
- Assessed land
- $9,660
- Assessed improvements
- $67,920
Zoning
R3-1: floor area ratio 0.60 built, 0.75 allowed by base zoning.
Flood zone
Current FEMA flood map: zone X, minimal flood hazard. FEMA’s preliminary map: zone AE, high risk: a 1% chance of flooding each year, base flood elevation 12 ft (NAVD88).
Recent sales
- Oct 17, 2023: $1,265,685
Open-market sales since 2016, from the Department of Finance’s sales files.