1520 Las Trampas Rd is a 3,213 square foot house on a 0.48 acre lot with 5 bedrooms and 3.5 bathrooms. Based on Redfin's Alamo data, we estimate the home's value is $1,852,310.
Single-familyProperty Type
1935Year Built
0.48 acresLot Size
$577Est. Price/Sq.Ft.
Source:Public Records
Redfin Estimate
$1,852,310
$18K since September
Recently sold homes
Estimate history
Homes for sale
This home's estimate is 14.3% lower than the average sale price ($2.16M) of 5 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
$4,637 (+33.2%)
$47,040 + $328,615
$375,655
2024
$3,482 (+1.4%)
$46,118 + $260,407
$306,525
2023
$3,435 (+0.7%)
$45,214 + $255,301
$300,515
2022
$3,410 (+2.0%)
$44,328 + $250,296
$294,624
2021
$3,345 (+2.0%)
$43,459 + $245,389
$288,848
2020
$3,280 (+1.1%)
$42,607 + $240,578
$283,185
2019
$3,243 (+3.6%)
$42,171 + $238,112
$280,283
2018
$3,130 (+3.4%)
$41,345 + $233,444
$274,789
2017
$3,026 (+1.3%)
$39,741 + $224,380
$264,121
2016
$2,986 (+1.0%)
$39,741 + $224,380
$264,121
2015
$2,957 (+1.1%)
$38,962 + $219,981
$258,943
2014
$2,925 (+0.8%)
$37,626 + $212,433
$250,059
2013
$2,901 (+2.7%)
$37,626 + $212,433
$250,059
2012
$2,825 (+1.6%)
$37,456 + $211,473
$248,929
2011
$2,781 (+0.8%)
$36,722 + $207,327
$244,049
2010
$2,759 (−0.1%)
$36,002 + $203,262
$239,264
2009
$2,763 (+37.1%)
$35,733 + $201,743
$237,476
2008
$2,015
$35,818 + $202,223
$238,041
Tax history for 1520 Las Trampas Rd
Year
Property tax
Land + Additions
Assessment*
2025
$4,637 (+33.2%)
$47,040 + $328,615
$375,655
2024
$3,482 (+1.4%)
$46,118 + $260,407
$306,525
2023
$3,435 (+0.7%)
$45,214 + $255,301
$300,515
2022
$3,410 (+2.0%)
$44,328 + $250,296
$294,624
2021
$3,345 (+2.0%)
$43,459 + $245,389
$288,848
2020
$3,280 (+1.1%)
$42,607 + $240,578
$283,185
2019
$3,243 (+3.6%)
$42,171 + $238,112
$280,283
2018
$3,130 (+3.4%)
$41,345 + $233,444
$274,789
2017
$3,026 (+1.3%)
$39,741 + $224,380
$264,121
2016
$2,986 (+1.0%)
$39,741 + $224,380
$264,121
2015
$2,957 (+1.1%)
$38,962 + $219,981
$258,943
2014
$2,925 (+0.8%)
$37,626 + $212,433
$250,059
2013
$2,901 (+2.7%)
$37,626 + $212,433
$250,059
2012
$2,825 (+1.6%)
$37,456 + $211,473
$248,929
2011
$2,781 (+0.8%)
$36,722 + $207,327
$244,049
2010
$2,759 (−0.1%)
$36,002 + $203,262
$239,264
2009
$2,763 (+37.1%)
$35,733 + $201,743
$237,476
2008
$2,015
$35,818 + $202,223
$238,041
*Taxable value of land and structures on it ("additions") is determined regularly by local assessors and does not affect market price.
Permits
Nov 21, 2025 • Final
Solarapp+ approved
Install a new solar energy system with solar modules and a battery backup system. The project includes a backup switch and utilizes the existing main service panel.
Battery
Electrical
Solar
Mar 21, 2025 • Active
Building/residential/ad/single family addition
Construct an addition for an office and bathroom. Replace a portion of the existing foundation and remodel the kitchen.
Addition
Bathroom
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: 2
Has Fireplace
Room Information
# of Rooms: 8
Exterior
Exterior Information
Physical Condition: Good
Foundation Type: Raised W/Crawlspace
Building Style Type: Ranch
Building Construction Quality: Good
Exterior Wall: Wood
Property Information
Subdivision Name: SAN RAMON RHO
Living Sq. Ft: 2,236
Ground Floor Sq. Ft: 2,236
Building Sq. Ft: 2,236
# of Stories: 1
Legal Description: POR RO SAN RAMON
Parking & Garage Information
Garage/Parking Sq. Ft: 360
Lot Information
# of Buildings: 2
Land Sq. Ft: 20,822
Acres: 0.478
Zoning Code: R-20
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: 3.5
Sq. Ft.: 3,213
Stories: 1.0
Parking Spaces: —
Basement: No
Accessible: No
Lot Size: 0.48 acres
Style: Single Family Residential
Year Built: 1935
Year Renovated: 2018
County: Contra Costa County
APN: 1980200594
HOA Dues: —
Garage: No
Features: —
Home facts updated by owner on Sep 28, 2018
Around this home
Schools
Rancho Romero Elementary School
Public K-5 • Assigned • 0.5mi
9/10
Stone Valley Middle School
Public 6-8 • Assigned • 0.9mi
10/10
San Ramon Valley High School
Public 9-12 • Assigned • 2.1mi
10/10
Provided by GreatSchools
Lifestyle
Provided by Walk Score and Local Logic
Climate risks
1/10 Flood Factor
Minimal risk of a flood reaching the building in the next 30 years
4/10 Fire Factor
0.93% chance of being in a wildfire in next 30 years
3/10 Heat Factor
9 days above 93° expected this year, 18 days in 30 years
1/10 Wind Factor
Minimal risk of severe winds over next 30 years
8/10 Air Factor
14 unhealthy days expected this year, 15 days in 30 years
Provided by First Street
Historical weather
Alamo, CA • 94507
Average low and high temperatures (°F)
58
39
61
42
68
46
68
47
74
51
80
54
82
56
86
58
81
59
76
53
62
44
56
43
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Sun exposure
In this area, properties receive around 11.5 hours in
June and 4.9 hours in December, placing it above the
U.S. average for solar exposure.
11.5 hrs
4.9 hrs
JuneDecember
Provided by Shadowmap
Estimated sale price
$1.76M – $2.13M
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