21 Montclair Ave
Waltham, MA 02451
3 bd 2 ba 1,732 sqft Built 1960 Lot 2,918 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 | $265,700 | $318,000 | $583,700 | $5,732 |
| 2024 | $262,500 | $302,800 | $565,300 | $5,449 |
| 2023 | $197,900 | $276,500 | $474,400 | $4,896 |
| 2022 | $190,100 | $250,200 | $440,300 | $4,905 |
| 2021 | $177,700 | $250,200 | $427,900 | $4,844 |
| 2020 | $152,400 | $237,000 | $389,400 | $4,653 |
| 2019 | $131,800 | $223,300 | $355,100 | $4,496 |
| 2018 | $116,400 | $206,700 | $323,100 | $4,074 |
| 2017 | $116,400 | $187,600 | $304,000 | $3,818 |
| 2016 | $112,900 | $175,100 | $288,000 | $3,525 |
| 2015 | $104,300 | $164,600 | $268,900 | $3,531 |
| 2013 | $111,600 | $144,800 | $256,400 | $3,459 |
| 2006 | $117,000 | $155,600 | $272,600 | $2,816 |
| 2005 | $117,000 | $139,500 | $256,500 | $2,537 |
| 2004 | $117,000 | $139,500 | $256,500 | $2,362 |
| 2003 | $128,000 | $107,300 | $235,300 | $2,275 |
Property facts
Year built
1960
Property type
single_family
Stories
—
Beds
3
Baths
2
Living area
1,732 sqft
Lot size
2,918 sqft
ZIP code
02451
City
Waltham
Street
Montclair Ave
Coordinates
42.40204, -71.24055
Comparable properties nearby
Frequently asked questions
When did 21 Montclair Ave last sell?
No public-record sale is on file for 21 Montclair Ave.
What is the current tax assessment for 21 Montclair Ave?
The most recent total assessment for 21 Montclair Ave (year 2025) is $583,700 with $5,732 in property tax.
When was 21 Montclair Ave built?
21 Montclair Ave was built in 1960.
How does 21 Montclair Ave compare to others on Montclair Ave?
We track 8 other properties on Montclair Ave. Browse the list under "Other properties on Montclair Ave" to compare beds, baths, and sale history.
What are the property facts for 21 Montclair Ave?
21 Montclair Ave is a 3 bed, 2 bath, 1,732 sqft, 2,918 sqft lot single_family.
Is 21 Montclair Ave a flip candidate?
No — 21 Montclair Ave does not appear in our flips dataset.
Is 21 Montclair Ave a tax-appeal candidate?
No — 21 Montclair 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
+1.6%
Implied 1-yr
+6.3%
2026 Q3
$994.1K
2026 Q4
$1.01M
ZIP 02451 — Median Price History + Forecast
Explore nearby
Geography
Other properties on Montclair Ave