12 UNION ST
Valuation
Tax & Assessment
Climate Risk
Scores 0–100; higher = greater projected risk.
Property Facts
Transaction History(3)
Sales and refinances filed with the county for this home. Not every transfer is a normal sale, so check the type before comparing prices.Assigned SchoolsThe public schools this address is zoned for. Boundaries change, so confirm with the district before you count on it.
District: Blackstone-Millville School District
Neighborhood · ZIP 01504These are comparison scores, not percentages. 100 equals the national average, so 150 means about 50% above average.
Index scale: 100 = US average (tick). Lower is better.
Owner Tools
Data by ATTOM. Valuations are automated estimates, not appraisals. Photos from Google Street View and may not depict the current property state.
How this home compares
12 Union St measured against every home in its neighborhood, its ZIP code and its county, using county assessor records refreshed nightly. A home can stand out in one of those areas and look ordinary in another, because each one holds a different mix of homes.
- Smaller than 77% of homes in Worcester County
- Has a bigger lot than 89% of homes in Blackstone 01504
How it measures up in Blackstone 01504
The dot is this home. The mark in the middle is the typical home in Blackstone 01504.
Bigger than 29% of homes nearby
Bigger than 89% of homes nearby
Newer than 42% of homes nearby
| Measure | This home | Blackstone 01504 | Worcester County |
|---|---|---|---|
| Living areabigger than | 1,234 ft² | 29% of homes | 23% of homes |
| Lot sizebigger than | 2.75 ac | 89% of homes | 87% of homes |
| Year builtnewer than | 1965 | 42% of homes | 47% of homes |
About 12 Union St
When did 12 Union St, Blackstone, MA last sell?
12 Union St, Blackstone, MA last sold on Nov 29, 2022 for $55,000, according to the county's recorded deed.
How big is 12 Union St, Blackstone, MA?
12 Union St, Blackstone, MA has 3 bedrooms, 2 bathrooms, 1,234 square feet of living space and a 2.75-acre lot.
When was 12 Union St, Blackstone, MA built?
12 Union St, Blackstone, MA was built in 1965, making it 61 years old. It is a ranch home. The building has 1 story.
What schools serve 12 Union St, Blackstone, MA?
12 Union St, Blackstone, MA is assigned to John F. Kennedy Elementary School (elementary); Blackstone - Millville Regional High School (high), rated D+; Frederick W. Hartnett Middle School (middle), rated C+. All sit in Blackstone-Millville School District. Attendance boundaries change — confirm with the district before relying on an assignment.
How does 12 Union St, Blackstone, MA compare to other homes in Blackstone 01504?
Among the 2,985 homes in Blackstone 01504, it is bigger than 29% of them (1,234 ft² against a typical 1,572 ft²), its lot is bigger than 89% of them (2.75 ac against a typical 0.57 ac) and it is newer than 42% of them (1965 against a typical 1978). These shares are recounted nightly from the full county assessor record for each area, not from active listings.
What are the property taxes on 12 Union St, Blackstone, MA?
The 2025 property tax bill for 12 Union St, Blackstone, MA was $1,454. The county assessed it at $96,300.
More homes on Union St
- 40 Union St$527K3 bd · 1 ba · 1,975 ft² · Sold $513K · Dec 2025
- 17 Union St$689K3 bd · 2.5 ba · 1,700 ft² · Sold $655K · Aug 2024
- 24 Union St$613K4 bd · 1.5 ba · 1,700 ft² · Sold $578K · Jun 2024
- 43 Union St$492K3 bd · 1.5 ba · 1,234 ft² · Sold $450K · Dec 2023
- 35 Union St2 bd · 1.5 ba · 1,200 ft² · Sold $255K · Nov 2021
- 22 Union St7.4 ac · Sold $80K · Apr 2021
- 29 Union St$633K1 bd · 1 ba · 1,080 ft² · Sold $465K · Dec 2019
- 19 Union St$674K3 bd · 2.5 ba · 1,740 ft² · Sold $474K · Apr 2017
- 21 Union St$820K4 bd · 3.5 ba · 2,756 ft² · Sold $80K · Aug 2015
- 20 Union St$594K3 bd · 2 ba · 2,272 ft² · Sold $250K · Jan 2013
- 14 Union St4 bd · 3.5 ba · 2,576 ft² · Sold $255K · Dec 2012
- 28 Union St2.02 ac · Sold $12K · Mar 2011
Closest homes
- 14 Union St266 ft · 4 bd · 3.5 ba · 2,576 ft² · Sold $255K · Dec 2012
- 10 Union St$528K358 ft · 3 bd · 1.5 ba · 1,700 ft² · Sold $146K · Dec 1993
- 17 Union St$689K499 ft · 3 bd · 2.5 ba · 1,700 ft² · Sold $655K · Aug 2024
- Union St0.1 mi · 1.17 ac · Sold May 1986
- 19 Union St$674K504 ft · 3 bd · 2.5 ba · 1,740 ft² · Sold $474K · Apr 2017
- Union St455 ft · 9.56 ac · Sold Apr 1965
- 21 Union St$820K444 ft · 4 bd · 3.5 ba · 2,756 ft² · Sold $80K · Aug 2015
- 8 Union St$600K510 ft · 4 bd · 2.5 ba · 2,358 ft² · Sold $128K · Dec 1993
More homes in Blackstone 01504
- 259 Main St$445K4 bd · 2 ba · 1,017 ft² · Sold $445K · Aug 2026
- 3 Michelle Ln$434K3 bd · 1.5 ba · 1,280 ft² · Sold $380K · Aug 2026
- 246 Blackstone St$427K3 bd · 1 ba · 1,756 ft² · Sold $335K · Aug 2026
- 48 Mendon St$830K7 bd · 4.5 ba · 6,307 ft² · Sold $830K · Aug 2026
- 89 Elm St6 bd · 3 ba · 2,740 ft² · Sold $621K · Aug 2026
- 280 Blackstone St$702K5 bd · 2.5 ba · 2,936 ft² · Sold $702K · Aug 2026
- 36 Fox Run Rd$407K2 bd · 2 ba · 1,380 ft² · Sold $430K · Aug 2026
- 10 Liberty Hill Dr$576K4 bd · 1.5 ba · 1,832 ft² · Sold $500K · Aug 2026
- 56 Mendon St$709K5 bd · 1.5 ba · 2,799 ft² · Sold $706K · Jul 2026
- 53 Farm St$765K4 bd · 2.5 ba · 2,240 ft² · Sold $763K · Jul 2026
- 4 Pickering Rd6.4 ac · Sold $820K · Jul 2026
- 70r Milk St$763K4 bd · 3.5 ba · 2,224 ft² · Sold $760K · Jul 2026
Assigned schools
Explore the area
See this home in context
Open 12 Union St on TopHap’s interactive map to compare it against every sale nearby, overlay school zones and flood risk, and run a CMA.
Open in map