20 Mason St
Winchester, MA 01890
4 bd 5 ba 2,853 sqft Built 1928 Lot 7,841 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 | $666,200 | $1,066,100 | $1,732,300 | $19,211 |
| 2024 | $620,300 | $1,034,700 | $1,655,000 | $18,751 |
| 2023 | $598,600 | $972,000 | $1,570,600 | $18,533 |
| 2022 | $570,200 | $877,900 | $1,448,100 | $18,116 |
| 2021 | $570,200 | $768,200 | $1,338,400 | $17,172 |
| 2020 | $570,200 | $768,200 | $1,338,400 | $16,583 |
| 2019 | $549,300 | $674,100 | $1,223,400 | $14,815 |
| 2018 | $535,300 | $658,500 | $1,193,800 | $14,552 |
| 2016 | $356,200 | $626,300 | $982,500 | $11,476 |
| 2015 | $342,500 | $569,100 | $911,600 | $11,067 |
| 2014 | $315,100 | $517,400 | $832,500 | $10,539 |
| 2006 | $309,300 | $508,400 | $817,700 | $8,480 |
| 2005 | $309,300 | $466,400 | $775,700 | $8,083 |
| 2004 | $266,800 | $435,800 | $702,600 | $7,996 |
| 2003 | $250,100 | $423,300 | $673,400 | $7,663 |
Property facts
Year built
1928
Property type
single_family
Stories
—
Beds
4
Baths
5
Living area
2,853 sqft
Lot size
7,841 sqft
ZIP code
01890
City
Winchester
Street
Mason St
Coordinates
42.44909, -71.12876
Comparable properties nearby
Block-level micro-comps
Same street, ±3 house numbers, sold in the last 24 monthsFrequently 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 $1,732,300 with $19,211 in property tax.
When was 20 Mason St built?
20 Mason St was built in 1928.
How does 20 Mason St compare to others on Mason St?
We track 1 other property 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, 5 bath, 2,853 sqft, 7,841 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
+1.1%
Implied 1-yr
+4.5%
2026 Q2
$1.94M
2026 Q3
$1.96M
ZIP 01890 — Median Price History + Forecast
Explore nearby
Geography
Other properties on Mason St