640 Union St
Weymouth, MA 02190
3 bd 3 ba 2,000 sqft Built 2022 Lot 17,424 sqft single_family
Most recent sale
$730,000
Sep 23, 2022
Location
Timeline: Sale, Listing & Tax History
Recorded events
| Date | Event | Price | Source |
|---|---|---|---|
| Sep 23, 2022 | Sold | $730,000 | MLS #72992120 |
| Sep 16, 2022 | Relisted | $749,900 | MLS #72992120 |
| Jul 16, 2022 | Price changed | $749,900 | MLS #72992120 |
| Jun 3, 2022 | Listed | $769,900 | MLS #72992120 |
| May 5, 2021 | Sold | $425,000 | MLS #72516484 |
Tax assessment history
| Year | Building | Land | Total assessed | Tax paid |
|---|---|---|---|---|
| 2025 | $684,000 | $219,200 | $903,200 | $9,122 |
| 2024 | $654,900 | $208,800 | $863,700 | $8,870 |
| 2023 | $45,600 | $212,600 | $258,200 | $2,698 |
| 2022 | $242,600 | $215,100 | $457,700 | $5,245 |
| 2021 | $202,700 | $215,100 | $417,800 | $4,905 |
| 2020 | $180,700 | $215,100 | $395,800 | $4,718 |
| 2019 | $173,000 | $206,800 | $379,800 | $4,603 |
| 2018 | $160,400 | $188,500 | $348,900 | $4,361 |
| 2017 | $143,700 | $179,700 | $323,400 | $4,143 |
| 2016 | $140,800 | $172,800 | $313,600 | $4,014 |
| 2015 | $130,500 | $172,800 | $303,300 | $3,913 |
| 2014 | $123,100 | $182,600 | $305,700 | $4,066 |
| 2006 | $119,800 | $195,800 | $315,600 | $2,818 |
| 2005 | $119,800 | $185,800 | $305,600 | $2,705 |
| 2004 | $74,000 | $120,800 | $194,800 | $2,472 |
| 2003 | $74,000 | $120,800 | $194,800 | $2,402 |
Property facts
Year built
2022
Property type
single_family
Stories
—
Beds
3
Baths
3
Living area
2,000 sqft
Lot size
17,424 sqft
ZIP code
02190
City
Weymouth
Street
Union St
Coordinates
42.15700, -70.92759
Comparable properties nearby
Investment analysis
Estimates based on local averages — not personalized adviceEstimated monthly rent
$5,800
Gross rental yield
9.53%
Implied cap rate
6.20%
Trend-extrapolated value
—
Frequently asked questions
When did 640 Union St last sell?
640 Union St most recently sold on Sep 23, 2022 for $730,000.
What is the current tax assessment for 640 Union St?
The most recent total assessment for 640 Union St (year 2025) is $903,200 with $9,122 in property tax.
How does 640 Union St's assessment compare to its last sale price?
The current assessment is 23.7% above the last sale price of $730,000.
When was 640 Union St built?
640 Union St was built in 2022.
How does 640 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 640 Union St?
640 Union St is a 3 bed, 3 bath, 2,000 sqft, 17,424 sqft lot single_family.
Is 640 Union St a flip candidate?
Yes — 640 Union St appears in our flips dataset, indicating it sold twice within a short window with a notable price change.
Is 640 Union St a tax-appeal candidate?
Yes — 640 Union St appears in our tax-appeal candidates list, meaning its current assessment exceeds its recent sale price by 15% or more.
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