11 William St
Darien, CT 06820
3 bd 3 ba 1,980 sqft Built 1916 Lot 5,227 sqft single_family
Most recent sale
$850,000
Feb 24, 2017
Location
Timeline: Sale, Listing & Tax History
Recorded events
| Date | Event | Price | Source |
|---|---|---|---|
| May 10, 2024 | Sold | $1,295,000 | SMARTMLS |
| Mar 20, 2024 | Relisted | $1,295,000 | SMARTMLS |
| Feb 26, 2024 | Listing removed | — | SMARTMLS |
| Jan 28, 2024 | Listed | $1,295,000 | SMARTMLS |
| Feb 24, 2017 | Sold | $850,000 | Public Record |
| Jan 19, 2017 | Listing removed | $899,000 | SMARTMLS |
| Dec 28, 2016 | Listing removed | $899,000 | Darien |
| Nov 19, 2016 | Price changed | $899,000 | Darien |
| Nov 1, 2016 | Price changed | $925,000 | Darien |
| Oct 27, 2016 | Price changed | $925,000 | SMARTMLS |
| Oct 12, 2016 | Price changed | $945,000 | Darien |
| Sep 21, 2016 | Price changed | $945,000 | SMARTMLS |
| Aug 30, 2016 | Listed | $975,000 | SMARTMLS |
| Aug 29, 2016 | Listed | $975,000 | Darien |
| Oct 10, 2012 | Sold | $812,500 | Public Record |
| Oct 10, 2012 | Listing removed | $839,000 | Darien |
| Sep 28, 2012 | Listing removed | $839,000 | SMARTMLS |
| Jul 15, 2012 | Price changed | $839,000 | Darien |
| Jul 6, 2012 | Price changed | $839,000 | SMARTMLS |
| Jun 14, 2012 | Price changed | $859,000 | SMARTMLS |
| Jun 13, 2012 | Price changed | $859,000 | Darien |
| May 21, 2012 | Listed | $899,000 | Darien |
| May 8, 2012 | Listed | $899,000 | SMARTMLS |
| Jan 18, 2006 | Sold | $550,000 | Public Record |
| May 17, 1993 | Sold | $210,000 | Public Record |
Tax assessment history
| Year | Building | Land | Total assessed | Tax paid |
|---|---|---|---|---|
| 2025 | $329,420 | $378,700 | $708,120 | $10,962 |
| 2023 | $217,560 | $360,640 | $578,200 | $10,182 |
| 2022 | $217,560 | $360,640 | $578,200 | $9,962 |
| 2021 | $217,560 | $360,640 | $578,200 | $9,737 |
| 2020 | $217,560 | $360,640 | $578,200 | $9,459 |
| 2019 | $217,560 | $360,640 | $578,200 | $9,523 |
| 2018 | $231,700 | $297,780 | $529,480 | $8,514 |
| 2017 | $231,700 | $297,780 | $529,480 | $8,556 |
| 2016 | $231,700 | $297,780 | $529,480 | $8,350 |
| 2015 | $231,700 | $297,780 | $529,480 | $8,128 |
| 2013 | $181,790 | $331,940 | $513,730 | $6,766 |
| 2006 | $131,880 | $237,440 | $369,320 | $4,949 |
| 2005 | $188,400 | $339,200 | $527,600 | $6,869 |
| 2004 | — | — | $369,320 | $4,413 |
| 2003 | $107,730 | $122,080 | $229,810 | $3,001 |
Property facts
Year built
1916
Property type
single_family
Stories
—
Beds
3
Baths
3
Living area
1,980 sqft
Lot size
5,227 sqft
ZIP code
06820
City
Darien
Street
William St
Coordinates
41.07130, -73.50009
Comparable properties nearby
Block-level micro-comps
Same street, ±3 house numbers, sold in the last 24 monthsFrequently asked questions
When did 11 William St last sell?
11 William St most recently sold on Feb 24, 2017 for $850,000.
What is the current tax assessment for 11 William St?
The most recent total assessment for 11 William St (year 2025) is $708,120 with $10,962 in property tax.
How does 11 William St's assessment compare to its last sale price?
The current assessment is 16.7% below the last sale price of $850,000.
When was 11 William St built?
11 William St was built in 1916.
How does 11 William St compare to others on William St?
We track 2 other properties on William St. Browse the list under "Other properties on William St" to compare beds, baths, and sale history.
What are the property facts for 11 William St?
11 William St is a 3 bed, 3 bath, 1,980 sqft, 5,227 sqft lot single_family.
Is 11 William St a flip candidate?
No — 11 William St does not appear in our flips dataset.
Is 11 William St a tax-appeal candidate?
No — 11 William St is not currently flagged as a tax-appeal candidate.
Forecast for this area
ZIP-area linear projection — not a per-property automated valuationQuarterly trend
-1.5%
Implied 1-yr
-6.0%
2026 Q3
$2.56M
2026 Q4
$2.52M
ZIP 06820 — Median Price History + Forecast
Explore nearby
Geography
Other properties on William St