21 Throne Hill Rd
Groton, MA 01450
4 bd 3 ba 2,452 sqft Built 1984 Lot 40,075 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 | $413,000 | $233,500 | $646,500 | $9,859 |
| 2024 | $405,500 | $233,500 | $639,000 | $9,643 |
| 2023 | $356,500 | $218,900 | $575,400 | $8,999 |
| 2022 | $294,900 | $192,500 | $487,400 | $8,378 |
| 2021 | $282,800 | $186,200 | $469,000 | $8,254 |
| 2020 | $266,900 | $186,200 | $453,100 | $7,875 |
| 2019 | $238,400 | $177,700 | $416,100 | $7,536 |
| 2018 | $209,300 | $169,300 | $378,600 | $7,068 |
| 2017 | $209,300 | $169,300 | $378,600 | $6,913 |
| 2016 | $198,000 | $162,800 | $360,800 | $6,776 |
| 2015 | $198,000 | $162,800 | $360,800 | $6,592 |
| 2014 | $198,000 | $162,800 | $360,800 | $6,271 |
| 2006 | $232,800 | $153,100 | $385,900 | $5,468 |
| 2005 | $232,800 | $153,100 | $385,900 | $5,341 |
| 2004 | $201,700 | $126,600 | $328,300 | $5,069 |
| 2003 | $201,700 | $126,600 | $328,300 | $4,672 |
Property facts
Year built
1984
Property type
single_family
Stories
—
Beds
4
Baths
3
Living area
2,452 sqft
Lot size
40,075 sqft
ZIP code
01450
City
Groton
Street
Throne Hill Rd
Coordinates
42.62674, -71.61298
Comparable properties nearby
Block-level micro-comps
Same street, ±3 house numbers, sold in the last 24 monthsFrequently asked questions
When did 21 Throne Hill Rd last sell?
No public-record sale is on file for 21 Throne Hill Rd.
What is the current tax assessment for 21 Throne Hill Rd?
The most recent total assessment for 21 Throne Hill Rd (year 2025) is $646,500 with $9,859 in property tax.
When was 21 Throne Hill Rd built?
21 Throne Hill Rd was built in 1984.
How does 21 Throne Hill Rd compare to others on Throne Hill Rd?
We track 8 other properties on Throne Hill Rd. Browse the list under "Other properties on Throne Hill Rd" to compare beds, baths, and sale history.
What are the property facts for 21 Throne Hill Rd?
21 Throne Hill Rd is a 4 bed, 3 bath, 2,452 sqft, 40,075 sqft lot single_family.
Is 21 Throne Hill Rd a flip candidate?
No — 21 Throne Hill Rd does not appear in our flips dataset.
Is 21 Throne Hill Rd a tax-appeal candidate?
No — 21 Throne Hill Rd is not currently flagged as a tax-appeal candidate.
Forecast for this area
ZIP-area linear projection — not a per-property automated valuationQuarterly trend
+3.0%
Implied 1-yr
+12.0%
2026 Q3
$1.24M
2026 Q4
$1.24M
ZIP 01450 — Median Price History + Forecast
Explore nearby
Geography
Other properties on Throne Hill Rd