# 20 Williams Ave, Jersey City

Single family · built c. 1900 · Block 20501, Lot 56.

On Umarelli: https://umarelli.org/jersey-city/20501/56/20-williams-ave

More construction in West Side: https://umarelli.org/jersey-city/west-side/west-side.md

Every lot on block 20501: https://umarelli.org/jersey-city/20501.md

## Building permits

- Alteration, issued Dec 29, 2010, described as “Replace boiler, 1 backflow preventer, 1 switch”
- Alteration, issued Oct 23, 2003, described as “Electrical And Fire Alterations”

## Property taxes

- Assessment: $261,300
- 2025 tax: $6,101
- Assessed land: $98,400
- Assessed improvements: $162,900

## Zoning

R-1 (Neighborhood Housing).

## Flood zone

Current FEMA flood map: zone X, minimal flood hazard.

From New York City and Jersey City public records, refreshed within a day of each release. Sources: https://umarelli.org/sources. Methodology and corrections: https://umarelli.org/methodology