21 Seneca Rd
Acton, MA 01720
4 bd 4 ba 3,502 sqft Built 2006 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 | $977,100 | $313,600 | $1,290,700 | $22,136 |
| 2024 | $915,000 | $313,600 | $1,228,600 | $20,481 |
| 2023 | $857,600 | $285,000 | $1,142,600 | $20,064 |
| 2022 | $723,800 | $247,800 | $971,600 | $18,898 |
| 2021 | $693,400 | $229,500 | $922,900 | $18,670 |
| 2020 | $680,800 | $229,500 | $910,300 | $17,514 |
| 2019 | $617,900 | $229,500 | $847,400 | $16,414 |
| 2018 | $598,300 | $229,500 | $827,800 | $16,043 |
| 2017 | $595,200 | $229,500 | $824,700 | $15,719 |
| 2016 | $571,800 | $229,500 | $801,300 | $15,409 |
| 2015 | $571,000 | $229,500 | $800,500 | $15,250 |
| 2013 | $520,300 | $229,500 | $749,800 | $14,321 |
| 2006 | $135,200 | $236,600 | $371,800 | $5,421 |
| 2005 | $137,900 | $206,000 | $343,900 | $4,749 |
| 2004 | $119,200 | $206,000 | $325,200 | $4,563 |
| 2003 | $113,800 | $187,700 | $301,500 | $4,085 |
Property facts
Year built
2006
Property type
single_family
Stories
—
Beds
4
Baths
4
Living area
3,502 sqft
Lot size
20,038 sqft
ZIP code
01720
City
Acton
Street
Seneca Rd
Coordinates
42.48659, -71.46883
Comparable properties nearby
Block-level micro-comps
Same street, ±3 house numbers, sold in the last 24 monthsFrequently asked questions
When did 21 Seneca Rd last sell?
No public-record sale is on file for 21 Seneca Rd.
What is the current tax assessment for 21 Seneca Rd?
The most recent total assessment for 21 Seneca Rd (year 2025) is $1,290,700 with $22,136 in property tax.
When was 21 Seneca Rd built?
21 Seneca Rd was built in 2006.
How does 21 Seneca Rd compare to others on Seneca Rd?
We track 3 other properties on Seneca Rd. Browse the list under "Other properties on Seneca Rd" to compare beds, baths, and sale history.
What are the property facts for 21 Seneca Rd?
21 Seneca Rd is a 4 bed, 4 bath, 3,502 sqft, 20,038 sqft lot single_family.
Is 21 Seneca Rd a flip candidate?
No — 21 Seneca Rd does not appear in our flips dataset.
Is 21 Seneca Rd a tax-appeal candidate?
No — 21 Seneca 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
-4.0%
Implied 1-yr
-15.9%
2026 Q3
$547.2K
2026 Q4
$517.9K
ZIP 01720 — Median Price History + Forecast
Explore nearby
Geography
Other properties on Seneca Rd