Ten reasons this is a unique opportunity. 1) over 34 acres 2) proximity to stores, parks, schools 3) just over the hill from high density homes 4) already has home to live in or rent 5) zoned for 2 acres lots 6) Well water on property 7) San Marcos School district 8) the road that bisects the land is a dead-end street 9) almost no traffic 10) neighboring 250 acres also for sale. **The white flag on the property is not the border - it's a point of reference marked on the attached plot plan.
Questhaven Road bisects the land with about 4.5 acres and a small (1500 s/f) home built in the 1930's on one side and about 30 acres on the other... the house is rented so please don't disturb the tenant - at one point there were horses on the land and there are still riding trails, a pond with a little dock and a well. There are a few water tanks up on the hill - one next to the white flag - take a look at the topographic map so you can see how expansive the land is. The hills are terraced allowing many great homesite choices.
Single-familyProperty Type
1930Year Built
34.83 acresLot Size
$3,030Est. Price/Sq.Ft.
10 spacesParking
Listed by Katherine Hewitt•DRE #01418500• Berkshire Hathaway HomeServices California Properties
•858-442-7824 (agent)
Bought with Out of Area Agent•DRE #00999999• Out of Area Office
•999-999-9999 (agent)
•trevor@rebrokerbuddy.com (agent)
Source:SDMLS #150048787
Redfin Estimate
$4,136,164
$261K since sold in May 2022$189K since August
Recently sold homes
Estimate history
Homes for sale
This home's estimate is 202.2% higher than the average sale price ($1.37M) of 6 comparable homes.
Ten reasons this is a unique opportunity. 1) over 34 acres 2) proximity to stores, parks, schools 3) just over the hill from high density homes 4) already has home to live in or rent 5) zoned for 2 acres lots 6) Well water on property 7) San Marcos School district 8) the road that bisects the land is a dead-end street 9) almost no traffic 10) neighboring 250 acres also for sale. **The white flag on the property is not the border - it's a point of reference marked on the attached plot plan.
Questhaven Road bisects the land with about 4.5 acres and a small (1500 s/f) home built in the 1930's on one side and about 30 acres on the other... the house is rented so please don't disturb the tenant - at one point there were horses on the land and there are still riding trails, a pond with a little dock and a well. There are a few water tanks up on the hill - one next to the white flag - take a look at the topographic map so you can see how expansive the land is. The hills are terraced allowing many great homesite choices.
SDMLS #150048764
Feb 4, 2016
Sold
$1,600,000
$1,172/sq ft
Jan 12, 2016
Pending
—
Sep 4, 2015
Listed
$2,100,000
$1,538/sq ft
+15
WILD POTENTIAL! Over 34 COUNTRY ACRES minutes from every amenity! Build your dream home OR Bring your horses and create an amazing equestrian estate OR Investigate the opportunities to develop this expansive site while living in or renting out this cute country home. *THE WHITE FLAG ON THE HILL IS NOT THE BORDER - IT IS IDENTIFIED ON THE ATTACHED PLOT PLAN! The property has a small pond, a WELL, mature trees, views, along with electricity and water in place. All measurements to be verified by buyer.
Ten reasons this is a unique property - in a unique location - unique opportunity. 1) over 34 acres (what!) 2) proximity to stores, parks, schools, restaurants 3) quiet quiet 4) already has home to rent or live in 5) zoned for 2 acres lots 6) Well water on property 7) San Marcos School district 8) the road that bisects the land is a dead-end street 9) almost no traffic 10) neighboring 250 acres also for sale.
Year
Property tax
Land + Additions
Assessment*
2025
$48,482 (+5.4%)
$4,113,241 + $81,181
$4,194,422
2024
$45,988 (+2.1%)
$4,032,590 + $79,590
$4,112,180
2023
$45,058 (+107.4%)
$3,953,520 + $78,030
$4,031,550
2022
$21,728 (+18.9%)
$3,876,000 + $76,500
$3,952,500
2021
$18,280 (−13.5%)
$1,729,025 + $55,775
$1,784,800
2020
$21,133 (+0.6%)
$1,399,000 + $70,000
$1,469,000
2019
$21,011 (+2.5%)
$1,677,769 + $54,121
$1,731,890
2018
$20,489 (+2.0%)
$1,644,872 + $53,060
$1,697,932
2017
$20,089
$1,581,000 + $51,000
$1,632,000
Tax history for 21065 Questhaven Rd
Year
Property tax
Land + Additions
Assessment*
2025
$48,482 (+5.4%)
$4,113,241 + $81,181
$4,194,422
2024
$45,988 (+2.1%)
$4,032,590 + $79,590
$4,112,180
2023
$45,058 (+107.4%)
$3,953,520 + $78,030
$4,031,550
2022
$21,728 (+18.9%)
$3,876,000 + $76,500
$3,952,500
2021
$18,280 (−13.5%)
$1,729,025 + $55,775
$1,784,800
2020
$21,133 (+0.6%)
$1,399,000 + $70,000
$1,469,000
2019
$21,011 (+2.5%)
$1,677,769 + $54,121
$1,731,890
2018
$20,489 (+2.0%)
$1,644,872 + $53,060
$1,697,932
2017
$20,089
$1,581,000 + $51,000
$1,632,000
*Taxable value of land and structures on it ("additions") is determined regularly by local assessors and does not affect market price.
Zoning
RR
Rural Residential District
The RR Use Regulations are intended to create and enhance residential areas where agricultural use compatible with a dominant, permanent residential use is desired. Typically, the RR Use Regulations would be applied to rural or semi-rural areas where urban levels of service are not available and where large lots are desired. Various applications of the RR Use Regulations with appropriate development designators can create buffers between residential and agricultural uses, family or small farm areas, or large lot rural residential developments.
Permitted uses
Include but are not limited to:
Housing-Single unit
Housing-Multiple units
Fire house
Agriculture-Cropland
Agriculture-Grove / orchard
Park & open space
Property details
Exterior
Property Information
Building Sq. Ft: 1,365
Legal Description: (EX DOC75200REC71)SWQ OF SWQ SEC 26-12-3W
Lot Information
# of Buildings: 1
Land Sq. Ft: 1,517,195
Acres: 34.83
Zoning Code: RR
County Use Description: RURAL 11-40 AC
Financial
Assessor Information
Assessment Year: 2026
Public facts
Beds: 2
Baths: 1.0
Sq. Ft.: 1,365
Stories: —
Lot Size: 34.83 acres
Style: Single Family Residential
Year Built: 1930
Year Renovated: 1930
County: San Diego County
APN: 2221220500
Home facts updated by county records on Aug 19, 2026
Around this home
Schools
Double Peak K-8
Public K-8 • Assigned • 0.8mi
8/10
Mission Hills High School
Public 9-12 • Assigned • 3.8mi
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
4/10 Fire Factor
3% chance of being in a wildfire in next 30 years
4/10 Heat Factor
7 days above 94° expected this year, 22 days in 30 years
1/10 Wind Factor
Minimal risk of severe winds over next 30 years
4/10 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
$3.93M – $4.76M
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