21 Union St
Fitchburg, MA 01420
4 bd 3 ba 4,479 sqft Built 1900 Lot 2,444 sqft single_family
No recorded sales
Location
Timeline: Sale, Listing & Tax History
Recorded events
| Date | Event | Price | Source |
|---|---|---|---|
| Jul 11, 2024 | Sold | $490,000 | MLSPIN |
| May 29, 2024 | Listed | $480,000 | MLSPIN |
| May 26, 2023 | Sold | $155,000 | MLSPIN |
| Sep 17, 2022 | Listed | $199,000 | MLS #73037854 |
Tax assessment history
| Year | Building | Land | Total assessed | Tax paid |
|---|---|---|---|---|
| 2025 | $371,600 | $61,400 | $433,000 | $5,850 |
| 2024 | $260,500 | $36,800 | $297,300 | $4,403 |
| 2023 | $182,900 | $28,200 | $211,100 | $3,382 |
| 2022 | $114,400 | $24,800 | $139,200 | — |
| 2021 | $110,900 | $18,800 | $129,700 | — |
| 2020 | $105,700 | $15,400 | $121,100 | — |
| 2018 | $103,800 | $19,700 | $123,500 | — |
| 2017 | $94,500 | $18,000 | $112,500 | — |
| 2016 | $92,900 | $18,000 | $110,900 | — |
| 2015 | $93,000 | $18,800 | $111,800 | — |
Property facts
Year built
1900
Property type
single_family
Stories
2
Beds
4
Baths
3
Living area
4,479 sqft
Lot size
2,444 sqft
ZIP code
01420
City
Fitchburg
Street
Union St
Coordinates
42.58347, -71.79452
Comparable properties nearby
Frequently asked questions
When did 21 Union St last sell?
No public-record sale is on file for 21 Union St.
What is the current tax assessment for 21 Union St?
The most recent total assessment for 21 Union St (year 2025) is $433,000 with $5,850 in property tax.
When was 21 Union St built?
21 Union St was built in 1900.
How does 21 Union St compare to others on Union St?
We do not currently track other properties on Union St.
What are the property facts for 21 Union St?
21 Union St is a 4 bed, 3 bath, 4,479 sqft, 2,444 sqft lot single_family.
Is 21 Union St a flip candidate?
Yes — 21 Union St appears in our flips dataset, indicating it sold twice within a short window with a notable price change.
Is 21 Union St a tax-appeal candidate?
No — 21 Union 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
+2.3%
Implied 1-yr
+9.2%
2026 Q3
$507.9K
2026 Q4
$518K
ZIP 01420 — Median Price History + Forecast
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Geography