bridgeMLS, Bay East AOR, or Contra Costa AOR #41097375
Jun 9, 2025
Sold
$2,190,000
$830/sq ft
May 22, 2025
Pending
—
May 14, 2025
Listed
*
Year
Property tax
Land + Additions
Assessment*
2026
$25,638 (+448.7%)
$1,428,000 + $805,800
$2,233,800
2025
$4,673 (+4.1%)
$1,428,000 + $805,800
$2,233,800
2024
$4,490 (+1.8%)
$75,660 + $265,287
$340,947
2023
$4,409 (+0.8%)
$74,177 + $260,086
$334,263
2022
$4,375 (+2.4%)
$72,723 + $254,987
$327,710
2021
$4,272 (+1.9%)
$71,298 + $249,988
$321,286
2020
$4,192 (+1.0%)
$69,900 + $245,087
$314,987
2019
$4,151 (+3.9%)
$69,184 + $242,574
$311,758
2018
$3,994 (+4.0%)
$67,828 + $237,818
$305,646
2017
$3,842 (+1.8%)
$65,196 + $228,584
$293,780
2016
$3,772 (+1.8%)
$65,196 + $228,584
$293,780
2015
$3,707 (+1.8%)
$63,918 + $224,102
$288,020
2014
$3,641 (+1.7%)
$61,725 + $216,413
$278,138
2013
$3,579 (+3.4%)
$61,725 + $216,413
$278,138
2012
$3,460 (+2.3%)
$61,447 + $215,435
$276,882
2011
$3,381 (+1.8%)
$60,243 + $211,211
$271,454
2010
$3,322 (−0.1%)
$59,062 + $207,070
$266,132
2009
$3,326 (+2.5%)
$58,621 + $205,523
$264,144
2008
$3,243
$58,761 + $206,012
$264,773
Tax history for 640 Thornhill Rd
Year
Property tax
Land + Additions
Assessment*
2026
$25,638 (+448.7%)
$1,428,000 + $805,800
$2,233,800
2025
$4,673 (+4.1%)
$1,428,000 + $805,800
$2,233,800
2024
$4,490 (+1.8%)
$75,660 + $265,287
$340,947
2023
$4,409 (+0.8%)
$74,177 + $260,086
$334,263
2022
$4,375 (+2.4%)
$72,723 + $254,987
$327,710
2021
$4,272 (+1.9%)
$71,298 + $249,988
$321,286
2020
$4,192 (+1.0%)
$69,900 + $245,087
$314,987
2019
$4,151 (+3.9%)
$69,184 + $242,574
$311,758
2018
$3,994 (+4.0%)
$67,828 + $237,818
$305,646
2017
$3,842 (+1.8%)
$65,196 + $228,584
$293,780
2016
$3,772 (+1.8%)
$65,196 + $228,584
$293,780
2015
$3,707 (+1.8%)
$63,918 + $224,102
$288,020
2014
$3,641 (+1.7%)
$61,725 + $216,413
$278,138
2013
$3,579 (+3.4%)
$61,725 + $216,413
$278,138
2012
$3,460 (+2.3%)
$61,447 + $215,435
$276,882
2011
$3,381 (+1.8%)
$60,243 + $211,211
$271,454
2010
$3,322 (−0.1%)
$59,062 + $207,070
$266,132
2009
$3,326 (+2.5%)
$58,621 + $205,523
$264,144
2008
$3,243
$58,761 + $206,012
$264,773
*Taxable value of land and structures on it ("additions") is determined regularly by local assessors and does not affect market price.
Public record
Public record
Permits
Beds
4
Baths
3
Stories
1
Lot width
—
Lot depth
—
Lot size
8,400 Sq. Ft.
Year renovated
1980
Sq. Ft.
2,637
Year built
1970
Style
Single Family Residential
County
Contra Costa County
APN
2162330035
Parking Spaces
—
Basement
—
Accessible
—
HOA Dues
—
Garage
—
Features
—
Last updated by owner on Oct 30, 2026.
Jan 13, 2026 • Final
Residential hvac - heating, ventilation, air conditioning
HVAC
Oct 31, 2025 • Final
Solar - residential
Electrical
Solar
Permit history is from public records and may be incomplete or inaccurate. Redfin and its agents make no representations about the property condition or permit status. Buyers should independently verify all information.
Property details
Parking
Parking Information
Garage Spaces: 2
Covered Spaces: 2
Parking Features: Attached, Int Access From Garage, Garage Door Opener
Interior
Bathroom Information
# of Bathrooms Total: 3
# of Bathrooms Full: 2
# of Bathrooms Partial: 1
Other Bathrooms Included Features: Shower Over Tub, Split Bath, Tile, Double Vanity
Primary Bathroom Included Features: Skylight(s), Solid Surface, Split Bath, Stall Shower, Tile, Tub with Jets, Updated Baths, Double Vanity, Granite, Walk-In Closet(s)
Room Type: Family Room, Formal Dining Room, Eat-In Kitchen, Storage, Kitchen, Laundry, Living Room, Master Bathroom, Master Bedroom
Fireplace Features: Brick, Family Room, Gas, Gas Starter, Living Room
Basement: Crawl Space
Exterior
Building Information
Construction Materials: Wood Siding
Building Area Total: 2,637
Exterior Features
Patio And Porch Features: Patio
Exterior Features: Back Yard, Dog Run, Front Yard, Sprinklers Automatic, Sprinklers Front, Landscape Back, Landscape Front
Fencing: Fenced
Pool Information
Pool Features: Community
Property Information
Living Area: 2637
Living Area Units: Square Feet
Property Type: Residential
Property Sub Type: Single Family Residence
Year Built: 1970
Lot Information
Lot Size Square Feet: 8400
Lot Size Area: 0.19
Lot Size Units: Acres
Lot Size Acres: 0.19
Lot Features: Corner Lot, Court, Level, Premium Lot, Rectangular Lot, Back Yard, Front Yard, Landscaped, Sprinklers In Rear
Utilities
Heating & Cooling
Has Heating
Heating: Forced Air
Cooling: Central Air
Location
Homeowners Association Information
Has Association
Association Amenities: Clubhouse, Greenbelt, Playground, Pool, Spa/Hot Tub, Tennis Court(s), BBQ Area, Picnic Area
Association Name: SYCAMORE HOMES ASSOC
Association Fee: $435
Association Fee Includes: Reserves, Management Fee, Maintenance Grounds
Association Fee Frequency: Quarterly
HOA Transfer Fees: Paid by Buyer
School Information
High School District: San Ramon Valley (925) 552-5500
Public facts
Beds: 4
Baths: 3.0
Sq. Ft.: 2,637
Stories: 1.0
Lot Size: 8,400 square feet
Style: Single Family Residential
Year Built: 1970
Year Renovated: 1980
County: Contra Costa County
APN: 2162330035
Home facts updated by county records on Oct 30, 2026
Around this home
Schools
K - 12
Preschool & daycare
Vista Grande Elementary School
Public K-5 • Assigned • 0.6mi
9/10
Los Cerros Middle School
Public 6-8 • Assigned • 1.5mi
10/10
Monte Vista High School
Public 9-12 • Assigned • 1.7mi
10/10
Provided by GreatSchools
Lifestyle
Provided by Walk Score and Local Logic
Local insights from Redfin agents
Danville’s housing market remains strong, with median prices around $1.88 million. Buyers may find more choices and negotiation opportunities, while sellers should price competitively and present their homes well to attract offers.
Danville commands a high price tag, with median sale prices hovering between $1.8M and $2M. However, the frantic rushing seen in other markets isn't fully present here—homes are taking an average of 25 to 27 days to sell.
Property information provided by bridgeMLS, Bay East AOR, or Contra Costa AOR when last listed in 2025. This data may not match public records. Learn more.