21742 Rimrock St is a 1,904 square foot house on a 7,800 square foot lot with 4 bedrooms and 2.5 bathrooms. - it last sold on December 31, 1991 for $253,000. Based on Redfin's Lake Forest data, we estimate the home's value is $1,239,813.
Single-familyProperty Type
1978Year Built
7,800 sq ftLot Size
$651Est. Price/Sq.Ft.
Source:Public Records
Redfin Estimate
$1,239,813
$987K since sold in December 1991$20K since September
Recently sold homes
Estimate history
Homes for sale
This home's estimate is 15.6% lower than the average sale price ($1.47M) 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
May 28, 2013 • Final
Mechanical - remodel
HVAC
Remodel
May 28, 2013 • Final
Residential building - remodel
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
Bathroom Information
# of Full Baths: 2
# of 1/2 Baths: 1
Heating & Cooling
Heating Fuel Type: Electric
Exterior
Exterior Information
Building Type: Single Family
Pool Information
Has Pool
Property Information
Living Sq. Ft: 1,904
Gross Sq. Ft: 2,586
Building Sq. Ft: 2,586
Legal Description: N-TRACT: 8886 BLOCK: LOT: 21
Parking & Garage Information
Garage/Parking Sq. Ft: 682
Lot Information
# of Buildings: 1
Land Sq. Ft: 7,800
Legal Lot Number: 21
Acres: 0.1791
Depth Footage: 130
Front Footage: 60
Zoning Code: LDR
County Use Description: SINGLE FAM RESIDENCE
Utility Information
Sewer Type: Public
Water Service Type: Public
Financial
Assessor Information
Assessment Year: 2026
Public facts
Beds: 4
Baths: 2.5
Sq. Ft.: 1,904
Stories: —
Lot Size: 7,800 square feet
Style: Single Family Residential
Year Built: 1978
Year Renovated: 1978
County: Orange County
APN: 61456123
Home facts updated by county records on Oct 28, 2026
Around this home
Schools
La Madera Elementary School
Public K-6 • Assigned • 0.6mi
8/10
Serrano Intermediate School
Public 7-8 • Assigned • 1.3mi
6/10
El Toro High School
Public 9-12 • Assigned • 0.7mi
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
1/10 Fire Factor
Unlikely to be in a wildfire in next 30 years
5/10 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
4/10 Air Factor
4 unhealthy days expected this year, 5 days in 30 years
Provided by First Street
Historical weather
Lake Forest, CA • 92630
Average low and high temperatures (°F)
71
49
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76
52
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53
78
57
82
62
87
64
89
65
85
65
80
57
72
51
69
49
Jan
Feb
Mar
Apr
May
Jun
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Sep
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Sun exposure
In this area, properties receive around 9.1 hours in
June and 7 hours in December, placing it above the
U.S. average for solar exposure.
9.1 hrs
7 hrs
JuneDecember
Provided by Shadowmap
Estimated sale price
$1.18M – $1.43M
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