31 Prospect Ave
Darien, CT 06820
4 bd 4 ba 2,376 sqft Built 1925 Lot 28,750 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 | $320,530 | $660,030 | $980,560 | $15,179 |
| 2023 | $260,470 | $471,450 | $731,920 | $12,889 |
| 2022 | $260,470 | $471,450 | $731,920 | $12,611 |
| 2021 | $260,470 | $471,450 | $731,920 | $12,326 |
| 2020 | $260,470 | $471,450 | $731,920 | $11,974 |
| 2019 | $260,470 | $471,450 | $731,920 | $12,055 |
| 2018 | $261,660 | $548,170 | $809,830 | $13,022 |
| 2017 | $261,660 | $548,170 | $809,830 | $13,087 |
| 2016 | $261,660 | $548,170 | $809,830 | $12,771 |
| 2015 | $261,660 | $548,170 | $809,830 | $12,431 |
| 2013 | $245,840 | $703,010 | $948,850 | $12,496 |
| 2006 | $211,750 | $511,280 | $723,030 | $9,689 |
| 2005 | $302,500 | $730,400 | $1,032,900 | $13,448 |
| 2003 | $173,110 | $300,860 | $473,970 | $6,190 |
Property facts
Year built
1925
Property type
single_family
Stories
2
Beds
4
Baths
4
Living area
2,376 sqft
Lot size
28,750 sqft
ZIP code
06820
City
Darien
Street
Prospect Ave
Coordinates
41.08268, -73.46718
Comparable properties nearby
Frequently asked questions
When did 31 Prospect Ave last sell?
No public-record sale is on file for 31 Prospect Ave.
What is the current tax assessment for 31 Prospect Ave?
The most recent total assessment for 31 Prospect Ave (year 2025) is $980,560 with $15,179 in property tax.
When was 31 Prospect Ave built?
31 Prospect Ave was built in 1925.
How does 31 Prospect Ave compare to others on Prospect Ave?
We do not currently track other properties on Prospect Ave.
What are the property facts for 31 Prospect Ave?
31 Prospect Ave is a 4 bed, 4 bath, 2,376 sqft, 28,750 sqft lot single_family.
Is 31 Prospect Ave a flip candidate?
No — 31 Prospect Ave does not appear in our flips dataset.
Is 31 Prospect Ave a tax-appeal candidate?
No — 31 Prospect Ave is not currently flagged as a tax-appeal candidate.
Forecast for this area
ZIP-area linear projection — not a per-property automated valuationQuarterly trend
-1.5%
Implied 1-yr
-6.0%
2026 Q3
$2.56M
2026 Q4
$2.52M
ZIP 06820 — Median Price History + Forecast
Explore nearby
Geography