78 Walnut St is a 2,738 square foot condo with 3 bedrooms and 3.5 bathrooms. - it last sold on August 06, 2013 for $615,000. Based on Redfin's Watertown data, we estimate the home's value is $1,168,466.
CondoProperty Type
2011Year Built
$427Est. Price/Sq.Ft.
Source:Public Records
Redfin Estimate
$1,168,466
$553K since sold in August 2013$19K since August
Recently sold homes
Estimate history
Homes for sale
This home's estimate is 11.4% higher than the average sale price ($1.05M) of 6 comparable homes.
*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: 816
Bathroom Information
# of Full Baths: 3
# of 1/2 Baths: 1
Heating & Cooling
Heating Type: Forced Air
Fireplace Information
# of Fireplaces: 1
Has Fireplace
Room Information
# of Rooms: 7
Exterior
Exterior Information
Physical Condition: Average
Building Style Type: Townhouse
Construction Type: Frame
Exterior Wall: Vinyl
Roof Shape Type: Gable
Property Information
Subdivision Name: WATERTOWN
Living Sq. Ft: 2,738
Gross Sq. Ft: 2,738
# of Units: 1
# of Stories: 3
Parking & Garage Information
Parking Type: Basement Garage
Garage / Carport Type: Basement
Lot Information
# of Buildings: 1
Land Sq. Ft: 8,334
Municipality Name: WATERTOWN
Acres: 0.1913
Zoning Code: T
State Use Description: CONDOMINIUM
Financial
Assessor Information
Assessment Year: 2026
Public facts
Beds: 3
Baths: 3.5
Sq. Ft.: 2,738
Stories: 3.0
Lot Size: —
Style: Condo/Co-op
Year Built: 2011
Year Renovated: —
County: Middlesex County
APN: 2301959S
Home facts updated by county records on Sep 10, 2026
Around this home
Schools
Hosmer Elementary School
Public PreK-5 • Assigned • 0.2mi
7/10
Watertown Middle School
Public 6-8 • Assigned • 1.1mi
7/10
Watertown High School
Public 9-12 • Assigned • 1.1mi
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...