66 Spring Valley Rd is a 3,055 square foot house on a 0.48 acre lot with 4 bedrooms and 2.5 bathrooms. Based on Redfin's Belmont data, we estimate the home's value is $2,090,497.
Single-familyProperty Type
1957Year Built
0.48 acresLot Size
$684Est. Price/Sq.Ft.
Source:Public Records
Redfin Estimate
$2,090,497
$4,000 since July
Recently sold homes
Estimate history
Homes for sale
This home's estimate is 9.7% higher than the average sale price ($1.91M) of 6 comparable homes.
As the MLS and public records start to fill up, we'll list the details here.
Year
Property tax
Land + Additions
Assessment*
2025
$23,201 (+18.1%)
$895,000 + $1,142,000
$2,037,000
2024
$19,652 (−2.9%)
$1,018,000 + $843,000
$1,861,000
2023
$20,232 (+6.1%)
$1,053,000 + $747,000
$1,800,000
2022
$19,062 (+4.5%)
$963,000 + $686,000
$1,649,000
2021
$18,245 (−0.3%)
$1,010,000 + $571,000
$1,581,000
2020
$18,304 (+10.7%)
$942,000 + $722,000
$1,664,000
2019
$16,536 (+1.3%)
$726,000 + $691,000
$1,417,000
2018
$16,330 (+10.8%)
$660,000 + $684,000
$1,344,000
2017
$14,733 (+1.4%)
$606,000 + $555,000
$1,161,000
2016
$14,532
$606,000 + $551,000
$1,157,000
2015
$14,525 (+2.2%)
$523,000 + $603,000
$1,126,000
2014
$14,216 (+4.2%)
$450,000 + $603,000
$1,053,000
2013
$13,637 (+1.1%)
$450,000 + $573,000
$1,023,000
2012
$13,484 (+5.5%)
$384,000 + $626,000
$1,010,000
2011
$12,777 (+13.7%)
$384,000 + $581,000
$965,000
2010
$11,236 (+3.2%)
$384,000 + $540,000
$924,000
2009
$10,891
$387,000 + $529,000
$916,000
Tax history for 66 Spring Valley Rd
Year
Property tax
Land + Additions
Assessment*
2025
$23,201 (+18.1%)
$895,000 + $1,142,000
$2,037,000
2024
$19,652 (−2.9%)
$1,018,000 + $843,000
$1,861,000
2023
$20,232 (+6.1%)
$1,053,000 + $747,000
$1,800,000
2022
$19,062 (+4.5%)
$963,000 + $686,000
$1,649,000
2021
$18,245 (−0.3%)
$1,010,000 + $571,000
$1,581,000
2020
$18,304 (+10.7%)
$942,000 + $722,000
$1,664,000
2019
$16,536 (+1.3%)
$726,000 + $691,000
$1,417,000
2018
$16,330 (+10.8%)
$660,000 + $684,000
$1,344,000
2017
$14,733 (+1.4%)
$606,000 + $555,000
$1,161,000
2016
$14,532
$606,000 + $551,000
$1,157,000
2015
$14,525 (+2.2%)
$523,000 + $603,000
$1,126,000
2014
$14,216 (+4.2%)
$450,000 + $603,000
$1,053,000
2013
$13,637 (+1.1%)
$450,000 + $573,000
$1,023,000
2012
$13,484 (+5.5%)
$384,000 + $626,000
$1,010,000
2011
$12,777 (+13.7%)
$384,000 + $581,000
$965,000
2010
$11,236 (+3.2%)
$384,000 + $540,000
$924,000
2009
$10,891
$387,000 + $529,000
$916,000
*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: 600
Basement Type: Full
Bathroom Information
# of Full Baths: 2
# of 1/2 Baths: 1
Heating & Cooling
Heating Type: Forced Hot Water
Fireplace Information
# of Fireplaces: 2
Has Fireplace
Room Information
# of Rooms: 7
Exterior
Exterior Information
Physical Condition: Average
Building Style Type: Raised Ranch
Construction Type: Frame
Exterior Wall: Wood Siding/Shingle
Property Information
Living Sq. Ft: 3,055
Ground Floor Sq. Ft: 1,320
# of Units: 1
# of Stories: 1
Parking & Garage Information
Parking Type: Basement Garage
Garage / Carport Type: Basement
Lot Information
# of Buildings: 1
Land Sq. Ft: 20,909
Municipality Name: BELMONT
Acres: 0.48
Zoning Code: SA
State Use Description: 1-FAMILY RESIDENCE
Financial
Assessor Information
Assessment Year: 2025
Public facts
Beds: 4
Baths: 2.5
Sq. Ft.: 3,055
Stories: 1.0
Lot Size: 0.48 acres
Style: Single Family Residential
Year Built: 1957
Year Renovated: 2002
County: Middlesex County
APN: 2086849S
Home facts updated by county records on Jul 30, 2026
Around this home
Schools
Winn Brook School
Public K-3 • Assigned • 1.5mi
10/10
Belmont High School
Public 9-12 • Assigned • 1.6mi
10/10
Provided by GreatSchools
Lifestyle
Provided by Walk Score and Local Logic
Local insights from Redfin agents
Belmont is a low-inventory, high-demand market driven both by restrictive zoning laws & proximity to Cambridge. New housing production is scarce, with demand for properties always exceeding supply. This will keep the market difficult for buyers and...