12 Mountain Ave
Marlborough, MA 01752
3 bd 1 ba 991 sqft Built 1915 Lot 4,123 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 | $163,700 | $157,800 | $321,500 | $3,170 |
| 2024 | $157,100 | $143,400 | $300,500 | $3,077 |
| 2023 | $182,700 | $114,500 | $297,200 | $3,430 |
| 2022 | $149,200 | $109,100 | $258,300 | $3,389 |
| 2021 | $144,800 | $89,100 | $233,900 | $3,228 |
| 2020 | $131,800 | $84,800 | $216,600 | $3,071 |
| 2019 | $129,700 | $83,200 | $212,900 | $2,996 |
| 2018 | $120,200 | $81,900 | $202,100 | $2,957 |
| 2017 | $91,400 | $81,800 | $173,200 | $2,653 |
| 2016 | $78,300 | $81,800 | $160,100 | $2,456 |
| 2015 | $83,600 | $86,100 | $169,700 | $2,674 |
| 2014 | $80,900 | $81,200 | $162,100 | $2,611 |
| 2006 | $119,400 | $111,300 | $230,700 | $2,833 |
| 2005 | $99,700 | $101,100 | $200,800 | $2,767 |
| 2004 | $88,200 | $89,400 | $177,600 | $2,291 |
| 2003 | $88,200 | $81,300 | $169,500 | $2,222 |
Property facts
Year built
1915
Property type
single_family
Stories
—
Beds
3
Baths
1
Living area
991 sqft
Lot size
4,123 sqft
ZIP code
01752
City
Marlborough
Street
Mountain Ave
Coordinates
42.35123, -71.56214
Comparable properties nearby
Block-level micro-comps
Same street, ±3 house numbers, sold in the last 24 monthsFrequently asked questions
When did 12 Mountain Ave last sell?
No public-record sale is on file for 12 Mountain Ave.
What is the current tax assessment for 12 Mountain Ave?
The most recent total assessment for 12 Mountain Ave (year 2025) is $321,500 with $3,170 in property tax.
When was 12 Mountain Ave built?
12 Mountain Ave was built in 1915.
How does 12 Mountain Ave compare to others on Mountain Ave?
We track 3 other properties on Mountain Ave. Browse the list under "Other properties on Mountain Ave" to compare beds, baths, and sale history.
What are the property facts for 12 Mountain Ave?
12 Mountain Ave is a 3 bed, 1 bath, 991 sqft, 4,123 sqft lot single_family.
Is 12 Mountain Ave a flip candidate?
No — 12 Mountain Ave does not appear in our flips dataset.
Is 12 Mountain Ave a tax-appeal candidate?
No — 12 Mountain 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
+3.2%
Implied 1-yr
+12.8%
2026 Q3
$683.9K
2026 Q4
$702K
ZIP 01752 — Median Price History + Forecast
Explore nearby
Geography
Other properties on Mountain Ave