51 Harold St
Cos Cob, CT 06807
2 bd 3 ba 2,038 sqft Built 1918 Lot 5,227 sqft multi_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 | $121,520 | $420,140 | $541,660 | $6,694 |
| 2023 | $121,520 | $420,140 | $541,660 | $6,303 |
| 2022 | $121,520 | $420,140 | $541,660 | $6,245 |
| 2021 | $140,000 | $352,730 | $492,730 | $5,932 |
| 2020 | $140,000 | $352,730 | $492,730 | $5,923 |
| 2019 | $140,000 | $352,730 | $492,730 | $5,982 |
| 2018 | $140,000 | $352,730 | $492,730 | $5,849 |
| 2017 | $140,000 | $352,730 | $492,730 | $5,922 |
| 2016 | $140,000 | $352,730 | $492,730 | $5,829 |
| 2015 | $94,360 | $329,770 | $424,130 | $5,031 |
| 2013 | $89,040 | $329,770 | $418,810 | $4,737 |
| 2006 | $137,060 | $361,060 | $498,120 | $3,910 |
| 2004 | $206,710 | $170,240 | $376,950 | $4,399 |
| 2003 | $206,710 | $170,240 | $376,950 | $4,256 |
Property facts
Year built
1918
Property type
multi_family
Stories
2
Beds
2
Baths
3
Living area
2,038 sqft
Lot size
5,227 sqft
ZIP code
06807
City
Cos Cob
Street
Harold St
Coordinates
41.04420, -73.59201
Comparable properties nearby
Frequently asked questions
When did 51 Harold St last sell?
No public-record sale is on file for 51 Harold St.
What is the current tax assessment for 51 Harold St?
The most recent total assessment for 51 Harold St (year 2025) is $541,660 with $6,694 in property tax.
When was 51 Harold St built?
51 Harold St was built in 1918.
How does 51 Harold St compare to others on Harold St?
We track 8 other properties on Harold St. Browse the list under "Other properties on Harold St" to compare beds, baths, and sale history.
What are the property facts for 51 Harold St?
51 Harold St is a 2 bed, 3 bath, 2,038 sqft, 5,227 sqft lot multi_family.
Is 51 Harold St a flip candidate?
No — 51 Harold St does not appear in our flips dataset.
Is 51 Harold St a tax-appeal candidate?
No — 51 Harold 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
+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 Harold St