As the MLS and public records start to fill up, we'll list the details here.
Year
Property tax
Land + Additions
Assessment*
2026
$8,056
$660,300
Tax history for 49 Union St
Year
Property tax
Land + Additions
Assessment*
2026
$8,056
$660,300
*Taxable value of land and structures on it ("additions") is determined regularly by local assessors and does not affect market price.
Property details
Interior
Basement Information
Basement Sq. Ft: 586
Bathroom Information
# of Full Baths: 1
Heating & Cooling
Heating Type: Forced Air
Room Information
# of Rooms: 7
Exterior
Exterior Information
Physical Condition: Average
Building Style Type: Townhouse
Property Information
Living Sq. Ft: 1,340
Gross Sq. Ft: 2,131
Lot Information
# of Buildings: 1
Municipality Name: WATERTOWN
State Use Description: CONDOMINIUM
Financial
Assessor Information
Assessment Year: 2026
Public facts
Beds: 4
Baths: 1.0
Sq. Ft.: 1,340
Stories: —
Lot Size: —
Style: Condo/Co-op
Year Built: 1905
Year Renovated: —
County: Middlesex County
APN: 22909030S
Home facts updated by county records on Sep 10, 2026
Around this home
Schools
K - 12
Preschool & daycare
Hosmer Elementary School
Public PreK-5 • Assigned • 1.1mi
7/10
Watertown Middle School
Public 6-8 • Assigned • 0.7mi
7/10
Watertown High School
Public 9-12 • Assigned • 0.6mi
6/10
Provided by GreatSchools
Lifestyle
Provided by Walk Score and Local Logic
Local insights from Redfin agents
Watertown's urban-suburban feeling paired with its proximity to Cambridge & Boston have caused it to rapidly transform into a destination for home buyers. Historically a manufacturing city, it has changed into a restaurant, shopping, and biotech hub...
with a completely built-out residential landscape.
Watertown’s market has exploded in recent years, with high home prices. Located close to Boston, it offers the perfect balance of a seamless urban commute and the tranquility of suburban living. Enhanced by flexible MBTA bus options and its location...