21 Seminole Ave
Waltham, MA 02451
3 bd 3 ba 1,950 sqft Built 1987 Lot 4,748 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 | $318,500 | $335,700 | $654,200 | $6,424 |
| 2024 | $314,500 | $319,700 | $634,200 | $6,114 |
| 2023 | $294,600 | $291,900 | $586,500 | $6,053 |
| 2022 | $281,000 | $264,100 | $545,100 | $6,072 |
| 2021 | $263,500 | $264,100 | $527,600 | $5,972 |
| 2020 | $253,100 | $250,200 | $503,300 | $6,014 |
| 2019 | $210,700 | $235,700 | $446,400 | $5,651 |
| 2018 | $189,500 | $218,200 | $407,700 | $5,141 |
| 2017 | $189,500 | $198,100 | $387,600 | $4,868 |
| 2016 | $189,500 | $184,900 | $374,400 | $4,583 |
| 2015 | $179,200 | $173,700 | $352,900 | $4,634 |
| 2013 | $192,200 | $152,900 | $345,100 | $4,655 |
| 2006 | $190,100 | $176,900 | $367,000 | $3,791 |
| 2005 | $190,100 | $158,600 | $348,700 | $3,449 |
| 2004 | $190,100 | $158,600 | $348,700 | $3,212 |
| 2003 | $168,400 | $122,000 | $290,400 | $2,808 |
Property facts
Year built
1987
Property type
single_family
Stories
—
Beds
3
Baths
3
Living area
1,950 sqft
Lot size
4,748 sqft
ZIP code
02451
City
Waltham
Street
Seminole Ave
Coordinates
42.40267, -71.24711
Comparable properties nearby
Block-level micro-comps
Same street, ±3 house numbers, sold in the last 24 monthsFrequently asked questions
When did 21 Seminole Ave last sell?
No public-record sale is on file for 21 Seminole Ave.
What is the current tax assessment for 21 Seminole Ave?
The most recent total assessment for 21 Seminole Ave (year 2025) is $654,200 with $6,424 in property tax.
When was 21 Seminole Ave built?
21 Seminole Ave was built in 1987.
How does 21 Seminole Ave compare to others on Seminole Ave?
We track 8 other properties on Seminole Ave. Browse the list under "Other properties on Seminole Ave" to compare beds, baths, and sale history.
What are the property facts for 21 Seminole Ave?
21 Seminole Ave is a 3 bed, 3 bath, 1,950 sqft, 4,748 sqft lot single_family.
Is 21 Seminole Ave a flip candidate?
No — 21 Seminole Ave does not appear in our flips dataset.
Is 21 Seminole Ave a tax-appeal candidate?
No — 21 Seminole 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 Seminole Ave