390 Cox Rd is a 2,300 square foot house on a 8.19 acre lot with 4 bedrooms and 3 bathrooms. - it last sold on January 30, 2025 for $1,999,000. Based on Redfin's San Marcos data, we estimate the home's value is $1,315,480.
Single-familyProperty Type
1974Year Built
8.19 acresLot Size
$572Est. Price/Sq.Ft.
20 spacesParking
Source:Public Records
Redfin Estimate
$1,315,480
$684K since sold in January 2025$53K since July
Recently sold homes
Estimate history
Homes for sale
This home's estimate is 3.3% higher than the average sale price ($1.27M) 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
A-1
Agricultural 1 Zone
To provide a low-intensity Agricultural Zone that is consistent in character with larger residential areas. This Zone is suitable for low-density residential hillside development. The A-1 Zone is intended to implement and be consistent with the Agricultural Residential (AG) land use designation of the General Plan.
Permitted uses
Include but are not limited to:
Agriculture
Equestrian facility
Livestock production
Garden center
Day care facility
Housing-Single unit
Housing-Senior
Housing-Other
Communications tower
Housing-Mobile home park
Property details
Exterior
Property Information
Subdivision Name: RANCHO LOS VALLECITOS DE SAN MARCOS
Living Sq. Ft: 2,300
Building Sq. Ft: 2,300
# of Units: 1
Legal Description: POR LOT 5 BLK 34 TR 806
Lot Information
# of Buildings: 1
Land Sq. Ft: 356,756
Legal Lot Number: 5
Legal Block Number: 34
Acres: 8.19
Zoning Code: A
County Use Description: 1 FAMILY RESIDENCE
Financial
Assessor Information
Assessment Year: 2026
Public facts
Beds: 4
Baths: 3.0
Sq. Ft.: 2,300
Stories: —
Lot Size: 8.19 acres
Style: Single Family Residential
Year Built: 1974
Year Renovated: 1974
County: San Diego County
APN: 1821011300
Home facts updated by county records on Aug 19, 2026
Around this home
Schools
Twin Oaks Elementary School
Public K-5 • Assigned • 0.4mi
8/10
Woodland Park Middle School
Public 6-8 • Assigned • 2.2mi
5/10
Mission Hills High School
Public 9-12 • Assigned • 2.2mi
7/10
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
5/10 Fire Factor
5% chance of being in a wildfire in next 30 years
5/10 Heat Factor
8 days above 94° expected this year, 24 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 • 92069
Average low and high temperatures (°F)
69
45
70
48
72
50
71
51
74
56
77
60
80
61
84
63
82
63
77
55
70
48
69
47
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Sun exposure
In this area, properties receive around 9.1 hours in
June and 7.3 hours in December, placing it above the
U.S. average for solar exposure.
9.1 hrs
7.3 hrs
JuneDecember
Provided by Shadowmap
Estimated sale price
$1.25M – $1.51M
Reach more buyers when you sell with Redfin. Save up to $13,155 in fees.3 minutes to get started.