40 Siwanoy Ln
New Canaan, CT 06840
6 bd 5 ba 3,646 sqft Built 1966 Lot 43,560 sqft single_family
Most recent sale
$980,000
Sep 13, 2011
Location
Timeline: Sale, Listing & Tax History
Recorded events
| Date | Event | Price | Source |
|---|---|---|---|
| Apr 24, 2024 | Listed | $1,949,000 | Newcanaan |
| Apr 17, 2024 | Listed | $1,949,000 | SMARTMLS |
| Sep 13, 2011 | Sold | $980,000 | Public Record |
| Aug 9, 2011 | Listing removed | $1,100,000 | SMARTMLS |
| Aug 8, 2011 | Listing removed | $1,100,000 | Newcanaan |
| Jun 22, 2011 | Listed | $1,100,000 | SMARTMLS |
| Jun 21, 2011 | Price changed | $1,100,000 | Newcanaan |
| Jun 17, 2011 | Listed | $1,300,000 | Newcanaan |
Tax assessment history
| Year | Building | Land | Total assessed | Tax paid |
|---|---|---|---|---|
| 2025 | $477,470 | $560,000 | $1,037,470 | $17,315 |
| 2023 | $228,270 | $504,630 | $732,900 | $13,881 |
| 2022 | $228,270 | $504,630 | $732,900 | $13,463 |
| 2021 | $228,270 | $504,630 | $732,900 | $13,309 |
| 2020 | $228,270 | $504,630 | $732,900 | $13,309 |
| 2019 | $176,750 | $504,630 | $681,380 | $12,428 |
| 2018 | $304,500 | $467,250 | $771,750 | $13,589 |
| 2017 | $304,500 | $467,250 | $771,750 | $13,343 |
| 2016 | $302,400 | $467,250 | $769,650 | $13,004 |
| 2015 | $302,400 | $467,250 | $769,650 | $12,747 |
| 2013 | $198,660 | $462,000 | $660,660 | $10,057 |
| 2006 | $228,700 | $392,700 | $621,400 | $9,122 |
| 2005 | $228,700 | $392,700 | $621,400 | $8,693 |
| 2004 | $228,700 | $392,700 | $621,400 | $8,221 |
| 2003 | $202,160 | $455,000 | $657,160 | $9,194 |
Property facts
Year built
1966
Property type
single_family
Stories
—
Beds
6
Baths
5
Living area
3,646 sqft
Lot size
43,560 sqft
ZIP code
06840
City
New Canaan
Street
Siwanoy Ln
Coordinates
41.15927, -73.49956
Comparable properties nearby
Block-level micro-comps
Same street, ±3 house numbers, sold in the last 24 monthsFrequently asked questions
When did 40 Siwanoy Ln last sell?
40 Siwanoy Ln most recently sold on Sep 13, 2011 for $980,000.
What is the current tax assessment for 40 Siwanoy Ln?
The most recent total assessment for 40 Siwanoy Ln (year 2025) is $1,037,470 with $17,315 in property tax.
How does 40 Siwanoy Ln's assessment compare to its last sale price?
The current assessment is 5.9% above the last sale price of $980,000.
When was 40 Siwanoy Ln built?
40 Siwanoy Ln was built in 1966.
How does 40 Siwanoy Ln compare to others on Siwanoy Ln?
We track 3 other properties on Siwanoy Ln. Browse the list under "Other properties on Siwanoy Ln" to compare beds, baths, and sale history.
What are the property facts for 40 Siwanoy Ln?
40 Siwanoy Ln is a 6 bed, 5 bath, 3,646 sqft, 43,560 sqft lot single_family.
Is 40 Siwanoy Ln a flip candidate?
No — 40 Siwanoy Ln does not appear in our flips dataset.
Is 40 Siwanoy Ln a tax-appeal candidate?
No — 40 Siwanoy 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
-0.2%
Implied 1-yr
-0.8%
2026 Q3
$2.61M
2026 Q4
$2.61M
ZIP 06840 — Median Price History + Forecast
Explore nearby
Geography
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