ONCE IN A LIFETIME", a home with the provenance of Bernard Maybeck's Wallen II house comes to market. Built for Maybeck's own son, this extraordinary residence seamlessly blends the master's signature style—concrete walls and redwood timbers—with Gary Parson's thoughtful modern addition. Every detail honors both Maybeck's vision and the magical hillside setting. Artistic copper details by Kip Mesirow complement the tastefully remodeled kitchen that opens to a private fenced orchard. Expansive commercial sliding windows dissolve the boundaries between interior spaces and the outdoors. Perched atop the Kensington hills, this private sanctuary offers both bay and hill views, yet is just minutes from local shops and restaurants.
Single-familyProperty Type
1938Year Built
0.92 acresLot Size
$1,074Est. Price/Sq.Ft.
3 car garageParking
Listed by Ann Arriola Plant•DRE #00613099• Red Oak Realty
Bought with Sarah Ridge•DRE #01990459• District Homes
bridgeMLS, Bay East AOR, or Contra Costa AOR #41099146
Oct 6, 2025
Sold
$3,825,000
$1,002/sq ft
Aug 6, 2025
Pending
—
Jul 24, 2025
Contingent
—
Jun 24, 2025
Price Changed
$3,989,000
$1,045/sq ft
Jun 5, 2025
Relisted
—
May 29, 2025
Listing Removed
—
May 29, 2025
Price Changed
$4,495,000
$1,177/sq ft
May 27, 2025
Listed
$4,950,000
$1,296/sq ft
bridgeMLS, Bay East AOR, or Contra Costa AOR #29031827
Nov 4, 1999
Sold
$1,100,000
$288/sq ft
Oct 4, 1999
Listing Removed
—
Sep 19, 1999
Listed
*
There are no remarks available.
Year
Property tax
Land + Additions
Assessment*
2026
$51,162 (+60.8%)
$2,380,000 + $1,445,000
$3,825,000
2025
$31,809 (+2.4%)
$2,380,000 + $1,445,000
$3,825,000
2024
$31,058 (+2.0%)
$1,233,423 + $1,068,030
$2,301,453
2023
$30,459 (+1.3%)
$1,209,239 + $1,047,089
$2,256,328
2022
$30,073 (+0.2%)
$1,185,529 + $1,026,558
$2,212,087
2021
$30,024 (+4.5%)
$1,162,284 + $1,006,430
$2,168,714
2020
$28,731 (+1.7%)
$1,139,495 + $986,697
$2,126,192
2019
$28,260 (+3.3%)
$1,127,811 + $976,580
$2,104,391
2018
$27,355 (+1.7%)
$1,105,698 + $957,432
$2,063,130
2017
$26,903 (+0.3%)
$1,062,763 + $920,254
$1,983,017
2016
$26,832 (−0.4%)
$1,062,763 + $920,254
$1,983,017
2015
$26,937 (+1.9%)
$1,041,925 + $902,210
$1,944,135
2014
$26,426 (+1.0%)
$1,006,172 + $871,251
$1,877,423
2013
$26,162 (+7.9%)
$1,006,172 + $871,251
$1,877,423
2012
$24,243
$1,001,625 + $867,314
$1,868,939
2011
$24,255 (+4.4%)
$981,986 + $850,308
$1,832,294
2010
$23,239 (+1.0%)
$962,732 + $833,636
$1,796,368
2009
$23,002 (+7.0%)
$955,537 + $827,406
$1,782,943
2008
$21,500
$957,808 + $829,372
$1,787,180
Tax history for 135 Purdue Ave
Year
Property tax
Land + Additions
Assessment*
2026
$51,162 (+60.8%)
$2,380,000 + $1,445,000
$3,825,000
2025
$31,809 (+2.4%)
$2,380,000 + $1,445,000
$3,825,000
2024
$31,058 (+2.0%)
$1,233,423 + $1,068,030
$2,301,453
2023
$30,459 (+1.3%)
$1,209,239 + $1,047,089
$2,256,328
2022
$30,073 (+0.2%)
$1,185,529 + $1,026,558
$2,212,087
2021
$30,024 (+4.5%)
$1,162,284 + $1,006,430
$2,168,714
2020
$28,731 (+1.7%)
$1,139,495 + $986,697
$2,126,192
2019
$28,260 (+3.3%)
$1,127,811 + $976,580
$2,104,391
2018
$27,355 (+1.7%)
$1,105,698 + $957,432
$2,063,130
2017
$26,903 (+0.3%)
$1,062,763 + $920,254
$1,983,017
2016
$26,832 (−0.4%)
$1,062,763 + $920,254
$1,983,017
2015
$26,937 (+1.9%)
$1,041,925 + $902,210
$1,944,135
2014
$26,426 (+1.0%)
$1,006,172 + $871,251
$1,877,423
2013
$26,162 (+7.9%)
$1,006,172 + $871,251
$1,877,423
2012
$24,243
$1,001,625 + $867,314
$1,868,939
2011
$24,255 (+4.4%)
$981,986 + $850,308
$1,832,294
2010
$23,239 (+1.0%)
$962,732 + $833,636
$1,796,368
2009
$23,002 (+7.0%)
$955,537 + $827,406
$1,782,943
2008
$21,500
$957,808 + $829,372
$1,787,180
*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
6
Baths
3
Stories
2
Lot width
—
Lot depth
—
Lot size
0.92 Acres
Year renovated
1975
Sq. Ft.
3,818
Year built
1938
Style
Single Family Residential
County
Contra Costa County
APN
5720700037
Parking Spaces
—
Basement
—
Accessible
—
HOA Dues
—
Garage
—
Features
—
Last updated by owner on Oct 30, 2026.
Jan 29, 2018 • Final
Building - residential plumbing
Replace an on-demand tankless water heater combination unit for domestic hot water and radiant heating.
Plumbing
Water heater
Mar 29, 2004 • Final
Building/residential/al/alteration
Remodel the interior and exterior of an existing bedroom, bathroom, kitchen, and breakfast room. Work includes plumbing, electrical, and mechanical systems, as well as the addition of attached trellises.
Electrical
HVAC
Plumbing
Remodel
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
Parking Features: Off Street
Interior
Bathroom Information
# of Bathrooms Total: 3
# of Bathrooms Full: 3
Other Bathrooms Included Features: Shower Over Tub, Skylight(s), Split Bath, Tile, Tub, Updated Baths, Jack & Jill, Stone
Primary Bathroom Included Features: Stall Shower, Tile, Tub, Updated Baths, Stone
Interior Features
Interior Features: Den, Dining Area, Family Room, Office, Counter - Solid Surface, Updated Kitchen
Appliances: Dishwasher, Double Oven, Oven, Free-Standing Range, Refrigerator, Dryer, Washer, Gas Water Heater
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.