3124 Roundhill Rd is a 3,086 square foot house on a 0.42 acre lot with 4 bedrooms and 4 bathrooms. - it last sold on October 10, 1994 for $545,500. Based on Redfin's Alamo data, we estimate the home's value is $2,583,070.
Single-familyProperty Type
1973Year Built
0.42 acresLot Size
$837Est. Price/Sq.Ft.
Source:Public Records
Redfin Estimate
$2,583,070
$2.0M since sold in October 1994$13K since August
Recently sold homes
Estimate history
Homes for sale
This home's estimate is 12.6% lower than the average sale price ($2.96M) 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.
Permits
Dec 3, 2025 • Active
Building - residential mechanical
Install new ducts with fourteen supplies and two returns. A HERS report may be required at the final inspection.
HVAC
Aug 7, 2017 • Final
Building/residential/al/alteration
Remove and replace exterior trim and siding with new fiber cement siding and stucco stone.
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
Room Information
# of Rooms: 11
Exterior
Pool Information
Has Pool
Property Information
Subdivision Name: SUBDIVISION 4041
Living Sq. Ft: 3,086
Ground Floor Sq. Ft: 2,342
Building Sq. Ft: 3,086
# of Stories: 2
Legal Description: TRACT 4041 LOT 15
Parking & Garage Information
Garage/Parking Sq. Ft: 645
Lot Information
# of Buildings: 1
Land Sq. Ft: 18,315
Legal Lot Number: 15
Acres: 0.4205
Zoning Code: R-15
County Use Description: SINGLE FAMILY
Financial
Assessor Information
Assessment Year: 2026
Public facts
Beds: 4
Baths: 4.0
Sq. Ft.: 3,086
Stories: 2.0
Lot Size: 0.42 acres
Style: Single Family Residential
Year Built: 1973
Year Renovated: 1985
County: Contra Costa County
APN: 1933830018
Home facts updated by county records on Jul 13, 2026
Around this home
Schools
Rancho Romero Elementary School
Public K-5 • Assigned • 1.5mi
9/10
Stone Valley Middle School
Public 6-8 • Assigned • 0.5mi
10/10
Monte Vista High School
Public 9-12 • Assigned • 1.9mi
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
2% chance of being in a wildfire in next 30 years
4/10 Heat Factor
8 days above 94° expected this year, 16 days in 30 years
1/10 Wind Factor
Minimal risk of severe winds over next 30 years
9/10 Air Factor
17 unhealthy days expected this year, 17 days in 30 years
Provided by First Street
Historical weather
Alamo, CA • 94507
Average low and high temperatures (°F)
58
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74
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80
55
86
58
83
57
76
53
62
44
56
43
Jan
Feb
Mar
Apr
May
Jun
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Aug
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Oct
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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
$2.45M – $2.97M
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