Business District, located between San Marcos Boulevard and Rancho Santa Fe Road, is a commercial and civic San Marcos neighborhood with a walkable main street grid and a cluster of public plazas. The neighborhood’s character concentrates around the San Marcos Boulevard and Grand Avenue intersection, where sidewalk patios, coffee counters, and small storefronts keep the blocks active. Community pillars include Restaurant Row, the San Marcos Civic Center, and the California State University San Marcos campus edge. Low-rise mixed-use buildings and newer apartment blocks sit beside older strip-retail facades and pocket parking lots. Double Peak Park frames the skyline to the north, while Sprinter rail service ties the district to the wider North County corridor.
Provided by Walk Score and Local Logic
Property details
Interior
Exterior
Finance
Interior features
Property has a view
Exterior features
Rectangular lot
Lot between 20,000 and 39,999 sqft
Access to horse trails, biking and hiking
Home design
Single-family residential zoning (R-1)
Construction
Parcel number 2172321300
Other
Listing agent: Jesse Landry
Listing office: Investors Property Management
Directions: From CA-78 East: Exit Twin Oaks Valley Rd, turn left (north) onto Twin Oaks Valley Rd. Continue approx. 1.5 miles, then turn right onto Roadrunner Rd. Continue approx. 800 feet, vacant lot is on the left between 3106 and 3122 Roadrunner Road.
Electricity and solar
View estimated energy costs and solar savings for this home
* Price is not available or MLS listing is off market.
Year
Property tax
Land + Additions
Assessment*
2025
$156 (+4.8%)
$306,000
2024
$149 (+1.8%)
$11,288
2023
$146 (+1.3%)
$11,067
2022
$144 (+1.4%)
$10,850
2021
$142 (+0.8%)
$10,638
2020
$141 (+0.9%)
$10,430
2019
$140 (+2.7%)
$10,324
2018
$136 (+1.8%)
$10,122
2017
$134 (+2.1%)
$9,730
2016
$131 (+0.8%)
$9,730
2015
$130 (+2.4%)
$9,540
2014
$127 (+0.9%)
$9,213
2013
$126 (+1.5%)
$9,213
2012
$124 (+1.6%)
$9,172
2011
$122 (+3.8%)
$8,993
2010
$118 (+0.8%)
$8,817
2009
$117 (+1.3%)
$8,752
2008
$115
$8,773
Public record
Public record
Zoning
Beds
—
Baths
—
Stories
—
Lot width
—
Lot depth
—
Lot size
0.53 Acres
Year renovated
—
Finished Sq. Ft.
—
Unfinished Sq. Ft.
—
Total Sq. Ft.
—
Year built
2000
Style
Vacant Land
County
San Diego County
APN
2172321300
Parking Spaces
—
Basement
—
Accessible
—
HOA Dues
—
Garage
—
Features
—
Last updated by owner on Aug 19, 2026.
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
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
5/10 Heat Factor
7 days above 91° expected this year, 23 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
81
64
78
64
75
57
70
51
68
49
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Sun exposure
93/ 100
Exceptional sunlight
Sunscore
There appears to be minimal shading by surrounding buildings, terrain, and vegetation.
8.3 hrs
5.3 hrs
JuneDecember
Provided by Shadowmap
Redfin Estimate for 0 Roadrunner Rd
$354,544
$20K under list price of $375K
Nearby comparable homes
The Redfin Estimate uses 6 recent nearby sales, priced between $190K to $899K.