659 River Rd
Cos Cob, CT 06807
5 bd 5 ba 5,485 sqft Built 1810 Lot 48,352 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 | $745,220 | $751,170 | $1,496,390 | $18,494 |
| 2023 | $745,220 | $751,170 | $1,496,390 | $17,412 |
| 2022 | $745,220 | $751,170 | $1,496,390 | $17,253 |
| 2021 | $846,790 | $643,860 | $1,490,650 | $17,947 |
| 2020 | $846,790 | $643,860 | $1,490,650 | $17,918 |
| 2019 | $846,790 | $643,860 | $1,490,650 | $18,096 |
| 2018 | $846,790 | $643,860 | $1,490,650 | $17,694 |
| 2017 | $846,790 | $643,860 | $1,490,650 | $17,916 |
| 2016 | $846,790 | $643,860 | $1,490,650 | $17,633 |
| 2015 | $533,610 | $593,600 | $1,127,210 | $13,372 |
| 2013 | $533,610 | $593,600 | $1,127,210 | $12,749 |
| 2006 | $471,870 | $940,310 | $1,412,180 | $11,086 |
| 2004 | $287,070 | $393,330 | $680,400 | $7,566 |
| 2003 | $287,070 | $393,330 | $680,400 | $7,314 |
Property facts
Year built
1810
Property type
single_family
Stories
2
Beds
5
Baths
5
Living area
5,485 sqft
Lot size
48,352 sqft
ZIP code
06807
City
Cos Cob
Street
River Rd
Coordinates
41.06783, -73.57754
Comparable properties nearby
Frequently asked questions
When did 659 River Rd last sell?
No public-record sale is on file for 659 River Rd.
What is the current tax assessment for 659 River Rd?
The most recent total assessment for 659 River Rd (year 2025) is $1,496,390 with $18,494 in property tax.
When was 659 River Rd built?
659 River Rd was built in 1810.
How does 659 River Rd compare to others on River Rd?
We track 8 other properties on River Rd. Browse the list under "Other properties on River Rd" to compare beds, baths, and sale history.
What are the property facts for 659 River Rd?
659 River Rd is a 5 bed, 5 bath, 5,485 sqft, 48,352 sqft lot single_family.
Is 659 River Rd a flip candidate?
No — 659 River Rd does not appear in our flips dataset.
Is 659 River Rd a tax-appeal candidate?
No — 659 River Rd is not currently flagged as a tax-appeal candidate.
Forecast for this area
ZIP-area linear projection — not a per-property automated valuationQuarterly trend
+4.5%
Implied 1-yr
+17.8%
2025 Q4
$2.1M
2026 Q1
$2.17M
ZIP 06807 — Median Price History + Forecast
Explore nearby
Geography
Other properties on River Rd