670 Mass Ave
Acton, MA 01720
3 bd 1 ba 1,402 sqft Built 1956 Lot 20,038 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 | $373,600 | $272,800 | $646,400 | $11,086 |
| 2024 | $355,400 | $272,800 | $628,200 | $10,472 |
| 2023 | $314,500 | $247,800 | $562,300 | $9,874 |
| 2022 | $277,400 | $215,500 | $492,900 | $9,587 |
| 2021 | $243,100 | $199,400 | $442,500 | $8,952 |
| 2020 | $28,800 | $199,400 | $228,200 | $4,391 |
| 2019 | $61,100 | $95,700 | $156,800 | $3,037 |
| 2018 | $54,500 | $95,700 | $150,200 | $2,911 |
| 2017 | $52,100 | $95,700 | $147,800 | $2,817 |
| 2016 | $47,700 | $97,700 | $145,400 | $2,796 |
| 2015 | $65,100 | $97,700 | $162,800 | $3,101 |
| 2013 | $65,100 | $97,700 | $162,800 | $3,109 |
Property facts
Year built
1956
Property type
single_family
Stories
—
Beds
3
Baths
1
Living area
1,402 sqft
Lot size
20,038 sqft
ZIP code
01720
City
Acton
Street
Mass Ave
Coordinates
42.47701, -71.48285
Comparable properties nearby
Frequently asked questions
When did 670 Mass Ave last sell?
No public-record sale is on file for 670 Mass Ave.
What is the current tax assessment for 670 Mass Ave?
The most recent total assessment for 670 Mass Ave (year 2025) is $646,400 with $11,086 in property tax.
When was 670 Mass Ave built?
670 Mass Ave was built in 1956.
How does 670 Mass Ave compare to others on Mass Ave?
We do not currently track other properties on Mass Ave.
What are the property facts for 670 Mass Ave?
670 Mass Ave is a 3 bed, 1 bath, 1,402 sqft, 20,038 sqft lot single_family.
Is 670 Mass Ave a flip candidate?
No — 670 Mass Ave does not appear in our flips dataset.
Is 670 Mass Ave a tax-appeal candidate?
No — 670 Mass 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
-4.0%
Implied 1-yr
-15.9%
2026 Q3
$547.2K
2026 Q4
$517.9K
ZIP 01720 — Median Price History + Forecast
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Geography