640 Prospect St
Westfield, NJ 07090
— ba 3,801 sqft Built 1908 Lot 13,948 sqft single_family
No recorded sales
Location
Timeline: Sale, Listing & Tax History
Recorded events
No recorded events
No sale or listing events are on file for this property.
Tax assessment history
| Year | Building | Land | Total assessed | Tax paid |
|---|---|---|---|---|
| 2025 | $580,200 | $728,000 | $1,308,200 | $29,983 |
| 2024 | $580,200 | $728,000 | $1,308,200 | $29,460 |
| 2023 | $580,200 | $728,000 | $1,308,200 | $28,858 |
| 2022 | $580,200 | $728,000 | $1,308,200 | $28,257 |
| 2021 | $580,200 | $728,000 | $1,308,200 | $28,296 |
| 2020 | $580,200 | $728,000 | $1,308,200 | $28,230 |
| 2019 | $580,200 | $728,000 | $1,308,200 | $28,126 |
| 2018 | $144,600 | $95,200 | $239,800 | $22,294 |
| 2017 | $144,600 | $95,200 | $239,800 | $22,171 |
| 2016 | $144,600 | $95,200 | $239,800 | $21,651 |
| 2015 | $144,600 | $95,200 | $239,800 | $21,219 |
| 2014 | $144,600 | $95,200 | $239,800 | $20,519 |
| 2013 | $144,600 | $95,200 | $239,800 | $19,622 |
| 2012 | $144,600 | $95,200 | $239,800 | $18,853 |
| 2011 | $144,600 | $95,200 | $239,800 | $18,136 |
| 2009 | $142,500 | $95,200 | $237,700 | $16,434 |
| 2008 | $142,500 | $95,200 | $237,700 | $15,852 |
| 2007 | $142,500 | $95,200 | $237,700 | $15,041 |
Property facts
Year built
1908
Property type
single_family
Stories
3
Beds
—
Baths
—
Living area
3,801 sqft
Lot size
13,948 sqft
ZIP code
07090
City
Westfield
Street
Prospect St
Coordinates
40.65687, -74.35920
Comparable properties nearby
Frequently asked questions
When did 640 Prospect St last sell?
No public-record sale is on file for 640 Prospect St.
What is the current tax assessment for 640 Prospect St?
The most recent total assessment for 640 Prospect St (year 2025) is $1,308,200 with $29,983 in property tax.
When was 640 Prospect St built?
640 Prospect St was built in 1908.
How does 640 Prospect St compare to others on Prospect St?
We track 8 other properties on Prospect St. Browse the list under "Other properties on Prospect St" to compare beds, baths, and sale history.
What are the property facts for 640 Prospect St?
640 Prospect St is a — bath, 3,801 sqft, 13,948 sqft lot single_family.
Is 640 Prospect St a flip candidate?
No — 640 Prospect St does not appear in our flips dataset.
Is 640 Prospect St a tax-appeal candidate?
No — 640 Prospect St is not currently flagged as a tax-appeal candidate.
Forecast for this area
ZIP-area linear projection — not a per-property automated valuationQuarterly trend
+1.2%
Implied 1-yr
+4.7%
2026 Q3
$1.37M
2026 Q4
$1.38M
ZIP 07090 — Median Price History + Forecast
Explore nearby
Geography
Other properties on Prospect St