551 River Rd
Cos Cob, CT 06807
5 bd 4 ba 3,099 sqft Built 2014 Lot 9,583 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 | $739,690 | $477,610 | $1,217,300 | $15,043 |
| 2023 | $739,690 | $477,610 | $1,217,300 | $14,165 |
| 2022 | $739,690 | $477,610 | $1,217,300 | $14,035 |
| 2021 | $814,590 | $384,860 | $1,199,450 | $14,441 |
| 2020 | $814,590 | $384,860 | $1,199,450 | $14,417 |
| 2019 | $814,590 | $384,860 | $1,199,450 | $14,561 |
| 2018 | $814,590 | $384,860 | $1,199,450 | $14,237 |
| 2017 | $814,590 | $384,860 | $1,199,450 | $14,416 |
| 2016 | $814,590 | $384,860 | $1,199,450 | $14,188 |
| 2015 | $635,810 | $322,910 | $958,720 | $11,373 |
| 2013 | — | $322,910 | $322,910 | $3,652 |
| 2006 | — | $385,840 | $385,840 | $3,029 |
| 2004 | — | $245,910 | $245,910 | $2,735 |
| 2003 | — | $245,910 | $245,910 | $2,644 |
Property facts
Year built
2014
Property type
single_family
Stories
2
Beds
5
Baths
4
Living area
3,099 sqft
Lot size
9,583 sqft
ZIP code
06807
City
Cos Cob
Street
River Rd
Coordinates
41.06030, -73.57904
Comparable properties nearby
Frequently asked questions
When did 551 River Rd last sell?
No public-record sale is on file for 551 River Rd.
What is the current tax assessment for 551 River Rd?
The most recent total assessment for 551 River Rd (year 2025) is $1,217,300 with $15,043 in property tax.
When was 551 River Rd built?
551 River Rd was built in 2014.
How does 551 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 551 River Rd?
551 River Rd is a 5 bed, 4 bath, 3,099 sqft, 9,583 sqft lot single_family.
Is 551 River Rd a flip candidate?
No — 551 River Rd does not appear in our flips dataset.
Is 551 River Rd a tax-appeal candidate?
No — 551 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