3145 Roadrunner Rd is a 2,331 square foot house on a 0.5 acre lot with 5 bedrooms and 3 bathrooms. - it last sold on March 06, 1984 for $35,000. Based on Redfin's San Marcos data, we estimate the home's value is $1,132,901.
Single-familyProperty Type
1984Year Built
0.5 acresLot Size
$486Est. Price/Sq.Ft.
Source:Public Records
Redfin Estimate
$1,132,901
$1.1M since sold in March 1984$23K since August
Recently sold homes
Estimate history
Homes for sale
This home's estimate is 19.7% lower than the average sale price ($1.41M) of 5 comparable homes.
*Taxable value of land and structures on it ("additions") is determined regularly by local assessors and does not affect market price.
Zoning
R-1-20
Estate Single-Family Residential Zone
To provide for single-family detached homes on lots of 20,000 sq ft or greater, for a maximum density of 2 units per 1 acre. This Zone provides for estate and ranch-style homes with associated rural uses. The R-1-20 Zone is intended to implement and be consistent with the Rural Residential (RR) land use designation of the General Plan.
Permitted uses
Include but are not limited to:
Agriculture
Agriculture-Other
Garden center
Day care facility
Housing-Single unit
Housing-Senior
Housing-Other
Communications tower
Agriculture-Cropland
Housing-Mobile home park
Property details
Interior
Heating & Cooling
Heating Fuel Type: Gas
Heating Type: Forced Air
Room Information
# of Rooms: 9
Exterior
Exterior Information
Physical Condition: Average
Foundation Type: Slab
Building Style Type: Conventional
Building Construction Quality: Good
Exterior Wall: Wood
Building Type: Detached
Property Information
Subdivision Name: RANCHO LOS VALLECITOS DE SAN MARCOS
Living Sq. Ft: 2,331
Building Sq. Ft: 2,331
# of Units: 1
# of Stories: 2
Legal Description: POR LOT 3 BLK 91 TR 806
Parking & Garage Information
# of Parking Spaces: 2
Parking Type: Garage/Carport
Lot Information
# of Buildings: 1
Land Sq. Ft: 21,780
Legal Lot Number: 3
Legal Block Number: 91
Acres: 0.5
Zoning Code: R1
County Use Description: 1 FAMILY RESIDENCE
Utility Information
Sewer Type: Public
Water Service Type: Public
Financial
Assessor Information
Assessment Year: 2026
Public facts
Beds: 5
Baths: 3.0
Sq. Ft.: 2,331
Stories: 2.0
Lot Size: 0.5 acres
Style: Single Family Residential
Year Built: 1984
Year Renovated: 1984
County: San Diego County
APN: 2172322000
Home facts updated by county records on Aug 19, 2026
Around this home
Schools
Joli Ann Leichtag Elementary School
Public K-5 • Assigned • 0.4mi
5/10
San Marcos Middle School
Public 6-8 • Assigned • 2.0mi
5/10
San Marcos High School
Public 9-12 • Assigned • 1.4mi
8/10
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
3/10 Fire Factor
0.31% chance of being in a wildfire in next 30 years
4/10 Heat Factor
7 days above 91° expected this year, 21 days in 30 years
1/10 Wind Factor
Minimal risk of severe winds over next 30 years
3/10 Air Factor
4 unhealthy days expected this year, 4 days in 30 years
Provided by First Street
Historical weather
San Marcos, CA • 92078
Average low and high temperatures (°F)
68
46
70
48
72
51
70
52
72
56
75
60
75
62
80
63
78
64
75
57
70
51
68
49
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Sun exposure
In this area, properties receive around 8.7 hours in
June and 7.3 hours in December, placing it above the
U.S. average for solar exposure.
8.7 hrs
7.3 hrs
JuneDecember
Provided by Shadowmap
Estimated sale price
$1.08M – $1.30M
Reach more buyers when you sell with Redfin. Save up to $11,329 in fees.3 minutes to get started.