5486 Hilltop Rd is a 4,352 square foot house on a 1.32 acre lot with 4 bedrooms and 4.5 bathrooms. - it last sold on September 03, 2025 for $3,219,500. Based on Redfin's Castro Valley data, we estimate the home's value is $3,971,513.
Single-familyProperty Type
2025Year Built
1.32 acresLot Size
$913Est. Price/Sq.Ft.
Source:Public Records
Redfin Estimate
$3,971,513
$752K since sold in September 2025$66K since October
Recently sold homes
Estimate history
Homes for sale
This home's estimate is 103.9% higher than the average sale price ($1.95M) of 6 comparable homes.
*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
PD
Planned Development District
Planned development districts, hereinafter designated as PD districts, are established to encourage the arrangement of a compatible variety of uses on suitable lands in such a manner that the resulting development will: be in accord with the policies of the General Plan of the county; provide efficient use of the land that includes preservation of significant open areas and natural and topographic landscape features with minimum alteration of natural land forms; provide an environment that will encourage the use of common open areas for neighborhood or community activities and other amenities; be compatible with and enhance the development of the general area; and create an attractive, efficient and safe environment.
Feb 4, 2026 • Final
Building
Battery
Electrical
Ev charger
Solar
Sep 4, 2025 • Final
Building
Install a roof-mounted solar photovoltaic system on a residential building.
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
Interior
Room Information
# of Rooms: 10
Exterior
Exterior Information
Physical Condition: Excellent
Building Style Type: U-Shape
Construction Type: Wood
Building Construction Quality: Good
Property Information
Living Sq. Ft: 4,352
Building Sq. Ft: 4,352
# of Units: 1
# of Stories: 2
Lot Information
# of Buildings: 1
Land Sq. Ft: 57,529
Legal Lot Number: 25
Municipality Name: CASTRO VALLEY UNINCORP
Acres: 1.3207
County Use Description: PLANNED DEVELOPMENT TRACT SFR
Financial
Assessor Information
Assessment Year: 2026
Public facts
Beds: 4
Baths: 4.5
Sq. Ft.: 4,352
Stories: 2.0
Parking Spaces: —
Basement: No
Accessible: No
Lot Size: 1.32 acres
Style: Single Family Residential
Year Built: 2025
Year Renovated: 2025
County: Alameda County
APN: 085A600002800
HOA Dues: —
Garage: Yes
Features: Views, Green
Home facts updated by owner on Nov 25, 2025
Around this home
Schools
K - 12
Preschool & daycare
Independent Elementary School
Public K-5 • Assigned • 2.1mi
9/10
Creekside Middle School
Public 6-8 • Assigned • 2.4mi
10/10
Castro Valley High School
Public 9-12 • Assigned • 3.4mi
9/10
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
1% chance of being in a wildfire in next 30 years
3/10 Heat Factor
7 days above 89° expected this year, 14 days in 30 years
1/10 Wind Factor
Minimal risk of severe winds over next 30 years
7/10 Air Factor
12 unhealthy days expected this year, 12 days in 30 years
Provided by First Street
Historical weather
Castro Valley, CA • 94552
Average low and high temperatures (°F)
61
42
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69
47
67
48
72
51
74
53
76
56
80
56
79
59
72
52
64
46
59
45
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Sun exposure
In this area, properties receive around 11.2 hours in
June and 4.9 hours in December, placing it above the
U.S. average for solar exposure.
11.2 hrs
4.9 hrs
JuneDecember
Provided by Shadowmap
Estimated sale price
$4.19M – $5.07M
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