21 Mason St
Dedham, MA 02026
3 bd 2 ba 2,019 sqft Built 1966 Lot 8,850 sqft single_family
Most recent sale
$541,000
Dec 27, 2017
Location
Timeline: Sale, Listing & Tax History
Recorded events
| Date | Event | Price | Source |
|---|---|---|---|
| Dec 12, 2022 | Sold | $640,000 | MLSPIN |
| Oct 5, 2022 | Listed | $624,999 | MLS #73044807 |
| Dec 27, 2017 | Sold | $541,000 | MLS #72202441 |
| Oct 26, 2017 | Price changed | $534,900 | MLS #72202441 |
| Oct 12, 2017 | Relisted | $539,900 | MLS #72202441 |
| Sep 27, 2017 | Listing removed | $545,000 | MLSPIN |
| Aug 29, 2017 | Price changed | $545,000 | MLS #72202441 |
| Aug 18, 2017 | Price changed | $549,900 | MLS #72202441 |
| Aug 11, 2017 | Price changed | $560,900 | MLS #72202441 |
| Aug 4, 2017 | Price changed | $564,900 | MLS #72202441 |
| Jul 23, 2017 | Listed | $569,900 | MLS #72202441 |
Tax assessment history
| Year | Building | Land | Total assessed | Tax paid |
|---|---|---|---|---|
| 2025 | $356,600 | $338,600 | $695,200 | $8,773 |
| 2024 | $356,500 | $307,200 | $663,700 | $8,296 |
| 2023 | $366,900 | $278,200 | $645,100 | $8,283 |
| 2022 | $313,500 | $261,300 | $574,800 | $7,674 |
| 2021 | $280,500 | $241,900 | $522,400 | $7,141 |
| 2020 | $267,700 | $242,000 | $509,700 | $6,993 |
| 2019 | $257,700 | $210,400 | $468,100 | $6,624 |
| 2018 | $248,600 | $184,300 | $432,900 | $6,299 |
| 2017 | $234,400 | $172,500 | $406,900 | $6,006 |
| 2016 | $234,400 | $159,700 | $394,100 | $6,105 |
| 2015 | $194,800 | $158,200 | $353,000 | $5,602 |
| 2014 | $179,700 | $155,300 | $335,000 | $5,387 |
| 2006 | $181,300 | $198,900 | $380,200 | $4,239 |
| 2005 | $171,900 | $181,600 | $353,500 | $3,705 |
| 2004 | $112,800 | $110,900 | $223,700 | $2,288 |
| 2003 | $112,800 | $110,900 | $223,700 | $3,139 |
Property facts
Year built
1966
Property type
single_family
Stories
—
Beds
3
Baths
2
Living area
2,019 sqft
Lot size
8,850 sqft
ZIP code
02026
City
Dedham
Street
Mason St
Coordinates
42.22377, -71.16063
Comparable properties nearby
Frequently asked questions
When did 21 Mason St last sell?
21 Mason St most recently sold on Dec 27, 2017 for $541,000.
What is the current tax assessment for 21 Mason St?
The most recent total assessment for 21 Mason St (year 2025) is $695,200 with $8,773 in property tax.
How does 21 Mason St's assessment compare to its last sale price?
The current assessment is 28.5% above the last sale price of $541,000.
When was 21 Mason St built?
21 Mason St was built in 1966.
How does 21 Mason St compare to others on Mason St?
We do not currently track other properties on Mason St.
What are the property facts for 21 Mason St?
21 Mason St is a 3 bed, 2 bath, 2,019 sqft, 8,850 sqft lot single_family.
Is 21 Mason St a flip candidate?
No — 21 Mason St does not appear in our flips dataset.
Is 21 Mason St a tax-appeal candidate?
No — 21 Mason St is not currently flagged as a tax-appeal candidate.
Forecast for this area
ZIP-area linear projection — not a per-property automated valuationQuarterly trend
+2.5%
Implied 1-yr
+10.1%
2026 Q3
$1.2M
2026 Q4
$1.23M
ZIP 02026 — Median Price History + Forecast
Explore nearby
Geography