9 River Ln
Cos Cob, CT 06807
3 bd 2 ba 1,646 sqft Built 1940 Lot 7,841 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 | $171,570 | $449,680 | $621,250 | $7,678 |
| 2023 | $171,570 | $449,680 | $621,250 | $7,229 |
| 2022 | $171,570 | $449,680 | $621,250 | $7,163 |
| 2021 | $131,040 | $372,050 | $503,090 | $6,057 |
| 2020 | $131,040 | $372,050 | $503,090 | $6,047 |
| 2019 | $131,040 | $372,050 | $503,090 | $6,108 |
| 2018 | $126,980 | $371,980 | $498,960 | $5,923 |
| 2017 | $126,980 | $371,980 | $498,960 | $5,997 |
| 2016 | $126,980 | $371,980 | $498,960 | $5,902 |
| 2015 | $118,580 | $385,490 | $504,070 | $5,980 |
| 2013 | $118,580 | $385,490 | $504,070 | $5,701 |
| 2006 | $135,590 | $498,960 | $634,550 | $4,981 |
| 2004 | $210,980 | $175,840 | $386,820 | $4,514 |
| 2003 | $210,980 | $175,840 | $386,820 | $4,367 |
Property facts
Year built
1940
Property type
single_family
Stories
2
Beds
3
Baths
2
Living area
1,646 sqft
Lot size
7,841 sqft
ZIP code
06807
City
Cos Cob
Street
River Ln
Coordinates
41.03921, -73.59448
Comparable properties nearby
Block-level micro-comps
Same street, ±3 house numbers, sold in the last 24 monthsFrequently asked questions
When did 9 River Ln last sell?
No public-record sale is on file for 9 River Ln.
What is the current tax assessment for 9 River Ln?
The most recent total assessment for 9 River Ln (year 2025) is $621,250 with $7,678 in property tax.
When was 9 River Ln built?
9 River Ln was built in 1940.
How does 9 River Ln compare to others on River Ln?
We track 4 other properties on River Ln. Browse the list under "Other properties on River Ln" to compare beds, baths, and sale history.
What are the property facts for 9 River Ln?
9 River Ln is a 3 bed, 2 bath, 1,646 sqft, 7,841 sqft lot single_family.
Is 9 River Ln a flip candidate?
No — 9 River Ln does not appear in our flips dataset.
Is 9 River Ln a tax-appeal candidate?
No — 9 River Ln 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 Ln