21 Park Ave
Greenwich, CT 06870
5 bd 5 ba 4,435 sqft Built 2023 Lot 9,583 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 | $1,196,090 | $807,310 | $2,003,400 | $24,760 |
| 2023 | $70,770 | $807,310 | $878,080 | $10,217 |
| 2022 | $70,770 | $807,310 | $878,080 | $10,124 |
| 2021 | $166,110 | $687,330 | $853,440 | $10,275 |
| 2020 | $166,110 | $687,330 | $853,440 | $10,258 |
| 2019 | $166,110 | $687,330 | $853,440 | $10,361 |
| 2018 | $166,110 | $687,330 | $853,440 | $10,130 |
| 2017 | $166,110 | $687,330 | $853,440 | $10,257 |
| 2016 | $166,110 | $687,330 | $853,440 | $10,095 |
| 2015 | $38,360 | $675,150 | $713,510 | $8,464 |
| 2013 | $38,360 | $675,150 | $713,510 | $8,070 |
| 2006 | $41,090 | $882,630 | $923,720 | $7,251 |
| 2004 | $174,860 | $361,340 | $536,200 | $6,257 |
| 2003 | $174,860 | $361,340 | $536,200 | $6,054 |
Property facts
Year built
2023
Property type
single_family
Stories
—
Beds
5
Baths
5
Living area
4,435 sqft
Lot size
9,583 sqft
ZIP code
06870
City
Greenwich
Street
Park Ave
Coordinates
41.03014, -73.56616
Comparable properties nearby
Frequently asked questions
When did 21 Park Ave last sell?
No public-record sale is on file for 21 Park Ave.
What is the current tax assessment for 21 Park Ave?
The most recent total assessment for 21 Park Ave (year 2025) is $2,003,400 with $24,760 in property tax.
When was 21 Park Ave built?
21 Park Ave was built in 2023.
How does 21 Park Ave compare to others on Park Ave?
We track 8 other properties on Park Ave. Browse the list under "Other properties on Park Ave" to compare beds, baths, and sale history.
What are the property facts for 21 Park Ave?
21 Park Ave is a 5 bed, 5 bath, 4,435 sqft, 9,583 sqft lot single_family.
Is 21 Park Ave a flip candidate?
No — 21 Park Ave does not appear in our flips dataset.
Is 21 Park Ave a tax-appeal candidate?
No — 21 Park Ave is not currently flagged as a tax-appeal candidate.
Forecast for this area
ZIP-area linear projection — not a per-property automated valuationQuarterly trend
-0.9%
Implied 1-yr
-3.4%
2026 Q3
$2.67M
2026 Q4
$2.65M
ZIP 06870 — Median Price History + Forecast
Explore nearby
Geography
Other properties on Park Ave