405 San Roberto Pl is a 2,800 square foot house on a 10,200 square foot lot with 5 bedrooms and 3 bathrooms. - it last sold on June 27, 2022 for $2,351,000. Based on Redfin's San Ramon data, we estimate the home's value is $1,962,455.
Single-familyProperty Type
1978Year Built
10,200 sq ftLot Size
$701Est. Price/Sq.Ft.
2 garage spacesParking
Listed by John Sayage•DRE #01972014• EXP Realty of California, Inc
Listed by Simon Ruelas•DRE #02023915• EXP Realty of California, Inc
Bought with Simon Ruelas•DRE #02023915• EXP Realty of California, Inc
Bought with John Sayage•DRE #01972014
Source:bridgeMLS, Bay East AOR, or Contra Costa AOR #40977068
Redfin Estimate
$1,962,455
$389K since sold in June 2022$2,000 since September
Recently sold homes
Estimate history
Homes for sale
This home's estimate is 1.7% lower than the average sale price ($2.00M) of 6 comparable homes.
bridgeMLS, Bay East AOR, or Contra Costa AOR #40993921
Jun 1, 2022
Listing Removed
—
bridgeMLS, Bay East AOR, or Contra Costa AOR #40977068
Jan 3, 2022
Pending
—
Jan 3, 2022
Sold
$1,402,500
$501/sq ft
Jan 3, 2022
Listed
$1,400,000
$500/sq ft
Public Records
Dec 22, 2021
Sold
$1,402,500
$501/sq ft
Public Records
Feb 1, 1979
Sold
$131,500
$47/sq ft
Year
Property tax
Land + Additions
Assessment*
2025
$24,349 (+5.2%)
$1,359,762 + $638,238
$1,998,000
2024
$23,155 (+40.8%)
$1,467,972 + $689,028
$2,157,000
2022
$16,450 (+321.1%)
$1,632,000 + $766,020
$2,398,020
2021
$3,907 (+2.1%)
$825,000 + $577,500
$1,402,500
2020
$3,828 (+1.0%)
$50,194 + $223,886
$274,080
2019
$3,790 (+3.9%)
$49,680 + $221,591
$271,271
2018
$3,649 (+4.0%)
$48,706 + $217,247
$265,953
2017
$3,510 (+1.9%)
$46,815 + $208,812
$255,627
2016
$3,443 (+1.8%)
$46,815 + $208,812
$255,627
2015
$3,381 (+2.0%)
$45,898 + $204,718
$250,616
2014
$3,316 (+1.8%)
$44,324 + $197,694
$242,018
2013
$3,257 (+3.5%)
$44,324 + $197,694
$242,018
2012
$3,147 (+2.5%)
$44,124 + $196,801
$240,925
2011
$3,072 (+1.8%)
$43,259 + $192,943
$236,202
2010
$3,016
$42,411 + $189,160
$231,571
2009
$3,018 (+4.4%)
$42,095 + $187,747
$229,842
2008
$2,891
$42,196 + $188,194
$230,390
Tax history for 405 San Roberto Pl
Year
Property tax
Land + Additions
Assessment*
2025
$24,349 (+5.2%)
$1,359,762 + $638,238
$1,998,000
2024
$23,155 (+40.8%)
$1,467,972 + $689,028
$2,157,000
2022
$16,450 (+321.1%)
$1,632,000 + $766,020
$2,398,020
2021
$3,907 (+2.1%)
$825,000 + $577,500
$1,402,500
2020
$3,828 (+1.0%)
$50,194 + $223,886
$274,080
2019
$3,790 (+3.9%)
$49,680 + $221,591
$271,271
2018
$3,649 (+4.0%)
$48,706 + $217,247
$265,953
2017
$3,510 (+1.9%)
$46,815 + $208,812
$255,627
2016
$3,443 (+1.8%)
$46,815 + $208,812
$255,627
2015
$3,381 (+2.0%)
$45,898 + $204,718
$250,616
2014
$3,316 (+1.8%)
$44,324 + $197,694
$242,018
2013
$3,257 (+3.5%)
$44,324 + $197,694
$242,018
2012
$3,147 (+2.5%)
$44,124 + $196,801
$240,925
2011
$3,072 (+1.8%)
$43,259 + $192,943
$236,202
2010
$3,016
$42,411 + $189,160
$231,571
2009
$3,018 (+4.4%)
$42,095 + $187,747
$229,842
2008
$2,891
$42,196 + $188,194
$230,390
*Taxable value of land and structures on it ("additions") is determined regularly by local assessors and does not affect market price.
Zoning and permits
Zoning
Permits
RS-10
Single-Family Residential Zone
The RS zone is applied to areas of the City appropriate for single-family residential land uses in neighborhoods at a density of three to six units per net acre, subject to appropriate standards. The specific allowable density for each parcel is shown on the Zoning Map by a numerical suffix residential density designator (see Section D2-8). Minimum lot size for new parcels ranges from 3,500 to 12,000 sq ft. Depending upon the applicable residential density designator, the RS zone is consistent with and implements the Single Family Low Density, Single Family Low-Medium Density, and Single Family Medium Density land use classifications of the General Plan.
Permitted uses
Include but are not limited to:
Day care facility
Housing-Single unit
Housing-Senior
Housing-Student
Housing-Other
Mar 10, 2025 • Final
Water heater/softener - plumbing
Plumbing
Water heater
Mar 13, 2024 • Final
Alteration, remodel, repair - building residential
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
Interior
Heating & Cooling
Heating Type: Forced Air
Fireplace Information
# of Fireplaces: 1
Has Fireplace
Room Information
# of Rooms: 11
Exterior
Exterior Information
Physical Condition: Good
Building Style Type: Ranch
Construction Type: Frame
Building Construction Quality: Good
Exterior Wall: Stucco
Property Information
Subdivision Name: SUBDIVISION 4477
Living Sq. Ft: 2,750
Ground Floor Sq. Ft: 1,582
Building Sq. Ft: 3,404
# of Stories: 2
Legal Description: T04477 L0097 B EX MR
Parking & Garage Information
# of Parking Spaces: 3
Parking Type: Attached Garage
Garage/Parking Sq. Ft: 654
Garage / Carport Type: Attached
Lot Information
# of Buildings: 1
Land Sq. Ft: 10,200
Legal Lot Number: 97
Acres: 0.2342
County Use Description: SINGLE FAMILY
Utility Information
Sewer Type: Public
Water Service Type: Public
Financial
Assessor Information
Assessment Year: 2026
Public facts
Beds: 5
Baths: 3.0
Sq. Ft.: 2,800
Stories: 2.0
Parking Spaces: 3
Basement: No
Accessible: Yes
Lot Size: 10,200 square feet
Style: Single Family Residential
Year Built: 1978
Year Renovated: 2023
County: Contra Costa County
APN: 2123520310
HOA Dues: —
Garage: Yes
Features: Green
Home facts updated by owner on Mar 14, 2026
Around this home
Schools
Montevideo Elementary School
Public K-5 • Assigned • 0.4mi
9/10
Iron Horse Middle School
Public 6-8 • Assigned • 1.4mi
10/10
California High School
Public 9-12 • Assigned • 0.6mi
10/10
Provided by GreatSchools
Lifestyle
Provided by Walk Score and Local Logic
Local insights from Redfin agents
San Ramon, Past 3 months,Median price $1.51M, down 4.5% YoY,Homes sold: 169 in July, up 1%,Days on market 20 days,Market Active but more balanced; slight seller advantage,Bottom line: Prices have softened, but homes are still selling relatively...