434 Cognewaugh Rd
Cos Cob, CT 06807
5 bd 6 ba 5,703 sqft Built 2004 Lot 90,605 sqft single_family
Most recent sale
$3,460,000
Jul 7, 2021
Location
Timeline: Sale, Listing & Tax History
Recorded events
| Date | Event | Price | Source |
|---|---|---|---|
| Dec 2, 2022 | Sold | $4,045,000 | Public Record |
| Oct 12, 2022 | Listed | $3,995,000 | MLS #117013 |
| Jul 7, 2021 | Sold | $3,460,000 | Public Record |
| Aug 27, 2020 | Listed | $3,545,000 | MLS #170330983 |
| Jan 9, 2019 | Listing removed | $14,600 | SMARTMLS |
| Nov 21, 2018 | Listing removed | $14,600 | Greenwich |
| Nov 1, 2018 | Listing removed | $3,399,000 | Greenwich |
| Oct 29, 2018 | Price changed | $3,399,000 | MLS #102584 |
| Oct 5, 2018 | Listed for rent | $14,600 | SMARTMLS |
| Oct 3, 2018 | Listed for rent | $14,600 | Greenwich |
| Oct 1, 2018 | Price changed | $3,435,000 | MLS #102584 |
| Apr 3, 2018 | Listed | $3,595,000 | MLS #102584 |
| Oct 13, 2017 | Listing removed | $3,685,000 | Greenwich |
| Sep 5, 2017 | Listed | $3,685,000 | MLS #100939 |
| May 2, 2008 | Sold | $3,816,000 | Public Record |
| May 18, 2005 | Sold | $3,700,000 | Public Record |
Tax assessment history
| Year | Building | Land | Total assessed | Tax paid |
|---|---|---|---|---|
| 2025 | $1,700,650 | $625,800 | $2,326,450 | $28,010 |
| 2023 | $1,628,480 | $625,800 | $2,254,280 | $25,676 |
| 2022 | $1,469,650 | $625,800 | $2,095,450 | $23,637 |
| 2021 | $1,703,800 | $568,960 | $2,272,760 | $26,341 |
| 2020 | $1,677,200 | $568,960 | $2,246,160 | $26,033 |
| 2019 | $1,665,930 | $568,960 | $2,234,890 | $26,104 |
| 2018 | $1,665,930 | $568,960 | $2,234,890 | $25,411 |
| 2017 | $1,665,930 | $568,960 | $2,234,890 | $25,411 |
| 2016 | $1,665,930 | $568,960 | $2,234,890 | $25,031 |
| 2015 | $1,513,400 | $901,950 | $2,415,350 | $27,221 |
| 2013 | $1,513,400 | $901,950 | $2,415,350 | $25,796 |
| 2006 | $1,606,290 | $1,198,470 | $2,804,760 | $21,036 |
| 2004 | $195,090 | $523,950 | $719,040 | $7,996 |
| 2003 | $195,090 | $523,950 | $719,040 | $7,730 |
Property facts
Year built
2004
Property type
single_family
Stories
2
Beds
5
Baths
6
Living area
5,703 sqft
Lot size
90,605 sqft
ZIP code
06807
City
Cos Cob
Street
Cognewaugh Rd
Coordinates
41.07987, -73.59439
Comparable properties nearby
Investment analysis
Estimates based on local averages — not personalized adviceEstimated monthly rent
$20,760
Gross rental yield
7.20%
Implied cap rate
4.68%
Trend-extrapolated value
—
Frequently asked questions
When did 434 Cognewaugh Rd last sell?
434 Cognewaugh Rd most recently sold on Jul 7, 2021 for $3,460,000.
What is the current tax assessment for 434 Cognewaugh Rd?
The most recent total assessment for 434 Cognewaugh Rd (year 2025) is $2,326,450 with $28,010 in property tax.
How does 434 Cognewaugh Rd's assessment compare to its last sale price?
The current assessment is 32.8% below the last sale price of $3,460,000.
When was 434 Cognewaugh Rd built?
434 Cognewaugh Rd was built in 2004.
How does 434 Cognewaugh Rd compare to others on Cognewaugh Rd?
We track 8 other properties on Cognewaugh Rd. Browse the list under "Other properties on Cognewaugh Rd" to compare beds, baths, and sale history.
What are the property facts for 434 Cognewaugh Rd?
434 Cognewaugh Rd is a 5 bed, 6 bath, 5,703 sqft, 90,605 sqft lot single_family.
Is 434 Cognewaugh Rd a flip candidate?
No — 434 Cognewaugh Rd does not appear in our flips dataset.
Is 434 Cognewaugh Rd a tax-appeal candidate?
No — 434 Cognewaugh 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 Cognewaugh Rd