Enjoy breathtaking panoramic mountain and sunset views, located on one of the premier streets in Trabuco Highlands, Robinson Ranch. Built by William Lyon Homes and meticulously maintained over the years, this 4BD/3BA home offers an estimated 2,267 square feet of elegant living space on an approximately 5,500 square foot lot. Enter through a grand foyer with vaulted ceilings, leading to formal living and dining rooms adorned with beautiful wood flooring. The updated kitchen, featuring quartz counters, stainless steel appliances, opens to a spacious family room, perfect for gatherings. Downstairs, you’ll also find a versatile bedroom that can serve as a den or office, along with a full bathroom and separate laundry room. Upstairs, the home boasts three additional bedrooms, including the large primary suite overlooking the mountains and an upgraded dual vanity and walk-in closet. Each bathroom is tastefully updated with modern vanities. The backyard is an entertainer's dream, complete with a modern fire pit and a covered pergola, ideal for outdoor relaxation and socializing. Robinson Ranch amenities enhance the vibrant community lifestyle with pools, parks, and sport courts. Don’t miss this exceptional opportunity to own a stunning home in a sought-after neighborhood.
Single-familyProperty Type
1992Year Built
5,500 sq ftLot Size
$696Est. Price/Sq.Ft.
3 garage spacesParking
Listed by Steven Bullock•DRE #01486410• Bullock Russell RE Services
Listed by Jeffrey Bullock•DRE #01958518• Bullock Russell RE Services
Great William Lyons Jasmine Plan B. 2207 sf 4 bdrm 3 full bath. One bedroom downstairs that can be used as office or den. Spacious 3 Car Garage with plenty of Closet space. Spectacular view of Saddleback and City Lights from Master and rear of house. Many upgrades.
Public Records
May 7, 1993
Sold
$240,000
$106/sq ft
Year
Property tax
Land + Additions
Assessment*
2025
$15,675 (+79.5%)
$1,238,835 + $286,165
$1,525,000
2024
$8,731 (+2.4%)
$1,238,835 + $286,165
$1,525,000
2023
$8,524 (+1.8%)
$587,667 + $266,586
$854,253
2022
$8,371 (+2.0%)
$576,144 + $261,359
$837,503
2021
$8,203 (+0.9%)
$564,847 + $256,235
$821,082
2020
$8,129 (+2.1%)
$553,772 + $251,211
$804,983
2019
$7,966 (+1.9%)
$548,093 + $248,636
$796,729
2018
$7,815 (+2.1%)
$537,346 + $243,761
$781,107
2017
$7,658 (+1.7%)
$516,480 + $234,297
$750,777
2016
$7,530 (+108.1%)
$516,480 + $234,297
$750,777
2015
$3,619 (−6.9%)
$506,353 + $229,703
$736,056
2014
$3,888 (+0.2%)
$88,690 + $172,373
$261,063
2013
$3,882 (−7.9%)
$88,690 + $172,373
$261,063
2012
$4,214 (+1.1%)
$88,290 + $171,594
$259,884
2011
$4,169 (+1.6%)
$86,559 + $168,230
$254,789
2010
$4,105 (+0.3%)
$84,862 + $164,932
$249,794
2009
$4,094 (+1.4%)
$84,228 + $163,700
$247,928
2008
$4,038
$84,429 + $164,089
$248,518
Tax history for 20821 Porter Ranch Rd
Year
Property tax
Land + Additions
Assessment*
2025
$15,675 (+79.5%)
$1,238,835 + $286,165
$1,525,000
2024
$8,731 (+2.4%)
$1,238,835 + $286,165
$1,525,000
2023
$8,524 (+1.8%)
$587,667 + $266,586
$854,253
2022
$8,371 (+2.0%)
$576,144 + $261,359
$837,503
2021
$8,203 (+0.9%)
$564,847 + $256,235
$821,082
2020
$8,129 (+2.1%)
$553,772 + $251,211
$804,983
2019
$7,966 (+1.9%)
$548,093 + $248,636
$796,729
2018
$7,815 (+2.1%)
$537,346 + $243,761
$781,107
2017
$7,658 (+1.7%)
$516,480 + $234,297
$750,777
2016
$7,530 (+108.1%)
$516,480 + $234,297
$750,777
2015
$3,619 (−6.9%)
$506,353 + $229,703
$736,056
2014
$3,888 (+0.2%)
$88,690 + $172,373
$261,063
2013
$3,882 (−7.9%)
$88,690 + $172,373
$261,063
2012
$4,214 (+1.1%)
$88,290 + $171,594
$259,884
2011
$4,169 (+1.6%)
$86,559 + $168,230
$254,789
2010
$4,105 (+0.3%)
$84,862 + $164,932
$249,794
2009
$4,094 (+1.4%)
$84,228 + $163,700
$247,928
2008
$4,038
$84,429 + $164,089
$248,518
*Taxable value of land and structures on it ("additions") is determined regularly by local assessors and does not affect market price.
Public record
Public record
Zoning
Beds
3
Baths
3
Stories
—
Lot width
—
Lot depth
—
Lot size
5,500 Sq. Ft.
Year renovated
1992
Sq. Ft.
2,267
Year built
1992
Style
Single Family Residential
County
Orange County
APN
84215433
Parking Spaces
—
Basement
—
Accessible
—
HOA Dues
—
Garage
—
Features
—
Last updated by owner on Jul 23, 2026.
RL-6000
Residential - Low Density District
The purpose of the RL districts is to provide for the development of single-family detached homes on moderate to large lots consistent with the General Plan low density residential (LDR) designation.
Permitted uses
Include but are not limited to:
Day care facility
Housing-Single unit
Housing-Senior
Housing-Other
Property details
Parking
Parking / Garage Information
Uncovered Spaces: 3
Attached Garage
# of Garage Spaces: 3
Direct Garage Access, Driveway Up Slope From Street, Garage - Front Entry, Garage - Three Door, Garage Door Opener
Has Parking
# of Parking Spaces: 6
Interior
Laundry Information
Has Laundry
Individual Room, Inside
Kitchen Information
Appliances: Dishwasher, Free Standing Range, Garbage Disposal, Gas Range, Microwave
Has Appliances
Breakfast Nook, Formal Dining Room
Kitchen Open to Family Room, Quartz Counters
Bathroom Information
# of Baths (Full): 3
Bathtub, Shower, Shower in Tub, Closet in bathroom, Double Sinks In Master Bath, Main Floor Full Bath, Quartz Counters
Cooling Information
Central
Has Cooling
Room Information
Entry, Family Room, Kitchen, Laundry, Living Room, Primary Suite
Fireplace Information
Family Room
Has Fireplace
Flooring Information
Carpet, Wood
Heating Information
Forced Air
Has Heating
Interior Features
Entry Level: 1
Entry Location: 1
Cathedral-Vaulted Ceilings, High Ceilings (9 Feet+), Open Floor Plan, Quartz Counters
Levels: Two
Main Level Bathrooms: 1
Main Level Bedrooms: 1
Spa Features: Association, Community
Has Spa
Window Features: Plantation Shutters
Exterior
Exterior Information
Structure Type: House
Fencing: Blockwall, Wrought Iron
Has Fence
Construction Materials: Stucco
Foundation Information
Foundation Details: Concrete Slab
Exterior Features
Rain Gutters
Patio And Porch Features: Concrete
Has Patio
Pool Features: Association, Community Pool
Lot Information
Elevation Units: Feet
Lot Size Source: Assessor's Data
Lot Features: Front Yard, Landscaped, Lawn, Yard
Property Information
Common Interest: Planned Development
Total # of Units: 1
Common Walls: No Common Walls
Living Area Source: Assessor's Data
Parcel Number: 84215433
Property Condition: Turnkey, Updated/Remodeled
Total # of Stories: 2
Has View
Year Built Source: Assessor
Property ADU: No
Financial
Assesments Information
Assessments: Unknown
Utilities
Utilities Information
Sewer: Public Sewer
Cable Connected, Electricity Connected, Natural Gas Connected, Sewer Connected, Water Connected
Water Source: District/Public
Location
Homeowners Association
Is Part of Association
Association Name: Trabuco Highlands
Association Fee: $226
Association Fee Frequency: Monthly
Association Amenities: Pool, Spa, Sport Court
Neighborhood Information
Community Features: Park, Sidewalks, Street Lighting, Suburban
School Information
Elementary School: Robinson Ranch
Middle Or Junior School: Rancho Santa Margarita
High School: Mission Viejo
High School District: Saddleback Valley Unified
Elementary School 2: ROBRAN
Middle Or Junior School 2: RASAMA
High School 2: MISVIE
Location Information
Other Subdivision Name: Trabuco - Springs (THS)
Directions: Santa Margarita Pkwy to Plano Trabuco, turn left, right on Robinson Ranch, left on Morningside Dr., left on Discovery
Road Surface Type: Paved
Subdivision Name: Trabuco - Springs (THS)
Public facts
Beds: 3
Baths: 3.0
Sq. Ft.: 2,267
Stories: —
Lot Size: 5,500 square feet
Style: Single Family Residential
Year Built: 1992
Year Renovated: 1992
County: Orange County
APN: 84215433
Home facts updated by county records on Jul 23, 2026
Other
Listing Information
IDX Contact Info: 949-285-3599
Days Active in MLS: 5
Continuous Days Active in MLS: 5
Listing Agent Information
List Agent First Name: Steven
List Agent Last Name: Bullock
Co-List Agent First Name: Jeffrey
Co-List Agent Last Name: Bullock
Listing Office Information
List Office Name: Bullock Russell RE Services
Co-List Office Name: Bullock Russell RE Services
Selling Agent Information
Buyer Agent First Name: GRANT
Buyer Agent Last Name: LAW
Selling Office Information
Buyer Office Name: THE AGENCY
Around this home
Schools
Robinson Elementary School
Public K-6 • Assigned • 0.9mi
7/10
Rancho Santa Margarita Intermediate School
Public 7-8 • Assigned • 1.9mi
7/10
Mission Viejo High School
Public 9-12 • Assigned • 7.6mi
10/10
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
8/10 Fire Factor
29% chance of being in a wildfire in next 30 years
4/10 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
5/10 Air Factor
6 unhealthy days expected this year, 7 days in 30 years
Provided by First Street
Historical weather
Robinson Ranch, CA • 92679
Average low and high temperatures (°F)
67
49
68
50
71
51
69
50
72
53
77
56
79
57
86
62
82
61
77
56
69
50
68
49
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Sun exposure
In this area, properties receive around 9.2 hours in
June and 7.1 hours in December, placing it above the
U.S. average for solar exposure.
9.2 hrs
7.1 hrs
JuneDecember
Provided by Shadowmap
Estimated sale price
$1.50M – $1.82M
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