646 Union St
Weymouth, MA 02190
3 bd 3 ba 2,000 sqft Built 2022 Lot 21,780 sqft single_family
Most recent sale
$780,000
Jul 15, 2022
Location
Timeline: Sale, Listing & Tax History
Recorded events
| Date | Event | Price | Source |
|---|---|---|---|
| Jul 15, 2022 | Sold | $780,000 | MLS #72985544 |
| May 20, 2022 | Listed | $769,900 | MLS #72985544 |
Tax assessment history
| Year | Building | Land | Total assessed | Tax paid |
|---|---|---|---|---|
| 2025 | $653,400 | $221,400 | $874,800 | $8,835 |
| 2024 | $628,900 | $210,900 | $839,800 | $8,625 |
| 2023 | $131,000 | $214,800 | $345,800 | $3,614 |
Property facts
Year built
2022
Property type
single_family
Stories
—
Beds
3
Baths
3
Living area
2,000 sqft
Lot size
21,780 sqft
ZIP code
02190
City
Weymouth
Street
Union St
Coordinates
42.15715, -70.92902
Comparable properties nearby
Investment analysis
Estimates based on local averages — not personalized adviceEstimated monthly rent
$5,800
Gross rental yield
8.92%
Implied cap rate
5.80%
Trend-extrapolated value
—
Frequently asked questions
When did 646 Union St last sell?
646 Union St most recently sold on Jul 15, 2022 for $780,000.
What is the current tax assessment for 646 Union St?
The most recent total assessment for 646 Union St (year 2025) is $874,800 with $8,835 in property tax.
How does 646 Union St's assessment compare to its last sale price?
The current assessment is 12.2% above the last sale price of $780,000.
When was 646 Union St built?
646 Union St was built in 2022.
How does 646 Union St compare to others on Union St?
We track 8 other properties on Union St. Browse the list under "Other properties on Union St" to compare beds, baths, and sale history.
What are the property facts for 646 Union St?
646 Union St is a 3 bed, 3 bath, 2,000 sqft, 21,780 sqft lot single_family.
Is 646 Union St a flip candidate?
No — 646 Union St does not appear in our flips dataset.
Is 646 Union St a tax-appeal candidate?
No — 646 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
-3.4%
Implied 1-yr
-13.6%
2026 Q3
$466.8K
2026 Q4
$446.5K
ZIP 02190 — Median Price History + Forecast
Explore nearby
Geography
Other properties on Union St