89 Prospect St
Greenwich, CT 06830
4 bd 3 ba 2,100 sqft Built 1909 Lot 3,485 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 | $276,850 | $305,270 | $582,120 | $7,194 |
| 2023 | $276,850 | $305,270 | $582,120 | $6,774 |
| 2022 | $276,850 | $305,270 | $582,120 | $6,712 |
| 2021 | $206,920 | $221,760 | $428,680 | $5,161 |
| 2020 | $206,920 | $221,760 | $428,680 | $5,153 |
| 2019 | $206,920 | $221,760 | $428,680 | $5,204 |
| 2018 | $206,920 | $221,760 | $428,680 | $5,088 |
| 2017 | $206,920 | $221,760 | $428,680 | $5,152 |
| 2016 | $206,920 | $221,760 | $428,680 | $5,071 |
| 2015 | $180,740 | $249,340 | $430,080 | $5,102 |
| 2013 | $180,740 | $249,340 | $430,080 | $4,864 |
| 2006 | $49,280 | $296,800 | $346,080 | $2,717 |
| 2004 | $103,810 | $104,370 | $208,180 | $2,429 |
| 2003 | $103,810 | $104,370 | $208,180 | $2,350 |
Property facts
Year built
1909
Property type
single_family
Stories
—
Beds
4
Baths
3
Living area
2,100 sqft
Lot size
3,485 sqft
ZIP code
06830
City
Greenwich
Street
Prospect St
Coordinates
41.02223, -73.63341
Comparable properties nearby
Block-level micro-comps
Same street, ±3 house numbers, sold in the last 24 monthsFrequently asked questions
When did 89 Prospect St last sell?
No public-record sale is on file for 89 Prospect St.
What is the current tax assessment for 89 Prospect St?
The most recent total assessment for 89 Prospect St (year 2025) is $582,120 with $7,194 in property tax.
When was 89 Prospect St built?
89 Prospect St was built in 1909.
How does 89 Prospect St compare to others on Prospect St?
We track 8 other properties on Prospect St. Browse the list under "Other properties on Prospect St" to compare beds, baths, and sale history.
What are the property facts for 89 Prospect St?
89 Prospect St is a 4 bed, 3 bath, 2,100 sqft, 3,485 sqft lot single_family.
Is 89 Prospect St a flip candidate?
No — 89 Prospect St does not appear in our flips dataset.
Is 89 Prospect St a tax-appeal candidate?
No — 89 Prospect 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
-3.1%
Implied 1-yr
-12.2%
2026 Q3
$4.87M
2026 Q4
$4.68M
ZIP 06830 — Median Price History + Forecast
Explore nearby
Geography
Other properties on Prospect St