20 Mason St
Lexington, MA 02421
4 bd 3 ba 2,040 sqft Lot 15,936 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 | $519,000 | $731,000 | $1,250,000 | $15,288 |
| 2024 | $515,000 | $696,000 | $1,211,000 | $14,835 |
| 2023 | $469,000 | $633,000 | $1,102,000 | $14,326 |
| 2022 | $364,000 | $575,000 | $939,000 | $12,958 |
| 2021 | $354,000 | $548,000 | $902,000 | $12,980 |
| 2020 | $368,000 | $548,000 | $916,000 | $12,870 |
| 2019 | $356,000 | $522,000 | $878,000 | $12,397 |
| 2018 | $347,000 | $497,000 | $844,000 | $12,069 |
| 2017 | $266,000 | $469,000 | $735,000 | $10,650 |
| 2016 | $258,000 | $447,000 | $705,000 | $10,293 |
| 2015 | $260,000 | $406,000 | $666,000 | $9,897 |
| 2014 | $226,000 | $365,000 | $591,000 | $9,166 |
| 2006 | $257,000 | $384,000 | $641,000 | $7,122 |
| 2005 | $245,000 | $339,000 | $584,000 | $6,623 |
| 2004 | $252,000 | $348,000 | $600,000 | $6,282 |
| 2003 | $193,000 | $292,000 | $485,000 | $5,311 |
Property facts
Year built
—
Property type
single_family
Stories
—
Beds
4
Baths
3
Living area
2,040 sqft
Lot size
15,936 sqft
ZIP code
02421
City
Lexington
Street
Mason St
Coordinates
42.42297, -71.20635
Comparable properties nearby
Frequently asked questions
When did 20 Mason St last sell?
No public-record sale is on file for 20 Mason St.
What is the current tax assessment for 20 Mason St?
The most recent total assessment for 20 Mason St (year 2025) is $1,250,000 with $15,288 in property tax.
When was 20 Mason St built?
The year built for 20 Mason St is not in our records.
How does 20 Mason St compare to others on Mason St?
We track 3 other properties on Mason St. Browse the list under "Other properties on Mason St" to compare beds, baths, and sale history.
What are the property facts for 20 Mason St?
20 Mason St is a 4 bed, 3 bath, 2,040 sqft, 15,936 sqft lot single_family.
Is 20 Mason St a flip candidate?
No — 20 Mason St does not appear in our flips dataset.
Is 20 Mason St a tax-appeal candidate?
No — 20 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
+3.2%
Implied 1-yr
+12.7%
2026 Q1
$2.69M
2026 Q2
$2.76M
ZIP 02421 — Median Price History + Forecast
Explore nearby
Geography
Other properties on Mason St