Dazzling luxury residence nestled in ultra-premium location on end of cul-de-sac in highly sought-after Lemon Heights neighborhood. Offering outstanding, mostly single level, floorplan (library and bonus upstairs) and loaded with custom features - this magnificent home is too beautiful to miss. Impressive foyer entry opens to huge living room boasting romantic oversized fireplace, elegant columns and wall of glass (doors) providing glorious light and open atmosphere. Huge family room features cathedral ceilings with exposed beams + fireplace and access to large gym and laundry areas. Chef's kitchen complete with walk-in pantry, buffet and breakfast nook + access to formal dining room. 2 Large downstairs master suites + 3rd and 4th bedrooms. Fantastic entertainers' yard boasts resort quality salt-water pool, covered patio, large play area + charming playroom/studio. WOW!
Single-familyProperty Type
1971Year Built
0.61 acresLot Size
$576Est. Price/Sq.Ft.
3 garage spacesParking
Listed by Mac Mackenzie•DRE #01038710• Coldwell Banker Realty
Bought with Laura Syme•DRE #01312868• Bauhaus Properties
'for Comp Purposes Only' Fabulous Home On Cul-De-Sac With Lovely Yard. Upstairs Loft & Sunroom. Large Formal Living Room W/ Fireplace & Built-In Show Cabinets, Large Dining Room, Updated Kitchen W/ Breakfast Nook. Recreation Room W/ Bath Can Be Used As 5th Bedroom. Wonderful Piece Of Property.
Public Records
Jan 28, 1987
Sold
$518,000
$99/sq ft
Year
Property tax
Land + Additions
Assessment*
2025
$19,374 (+4.6%)
$1,154,135 + $569,861
$1,723,996
2024
$18,521 (+2.3%)
$1,154,135 + $569,861
$1,723,996
2023
$18,098 (+1.3%)
$1,131,505 + $558,688
$1,690,193
2022
$17,858 (+2.1%)
$1,109,318 + $547,734
$1,657,052
2021
$17,492 (+0.5%)
$1,087,566 + $536,995
$1,624,561
2020
$17,405 (+2.6%)
$1,066,241 + $526,466
$1,592,707
2019
$16,961 (+1.7%)
$1,055,308 + $521,068
$1,576,376
2018
$16,680 (+1.8%)
$1,034,616 + $510,851
$1,545,467
2017
$16,385 (+1.9%)
$994,440 + $491,015
$1,485,455
2016
$16,087 (+0.2%)
$994,440 + $491,015
$1,485,455
2015
$16,062 (+2.7%)
$974,941 + $481,388
$1,456,329
2014
$15,639 (+7.1%)
$941,486 + $464,870
$1,406,356
2013
$14,600 (+4.0%)
$941,486 + $464,870
$1,406,356
2012
$14,034 (+3.2%)
$892,926 + $400,831
$1,293,757
2011
$13,598 (+0.6%)
$875,418 + $392,972
$1,268,390
2010
$13,518 (+1.9%)
$858,253 + $385,267
$1,243,520
2009
$13,264 (+2.8%)
$851,839 + $382,388
$1,234,227
2008
$12,902
$853,863 + $383,297
$1,237,160
Tax history for 12122 THETA Rd
Year
Property tax
Land + Additions
Assessment*
2025
$19,374 (+4.6%)
$1,154,135 + $569,861
$1,723,996
2024
$18,521 (+2.3%)
$1,154,135 + $569,861
$1,723,996
2023
$18,098 (+1.3%)
$1,131,505 + $558,688
$1,690,193
2022
$17,858 (+2.1%)
$1,109,318 + $547,734
$1,657,052
2021
$17,492 (+0.5%)
$1,087,566 + $536,995
$1,624,561
2020
$17,405 (+2.6%)
$1,066,241 + $526,466
$1,592,707
2019
$16,961 (+1.7%)
$1,055,308 + $521,068
$1,576,376
2018
$16,680 (+1.8%)
$1,034,616 + $510,851
$1,545,467
2017
$16,385 (+1.9%)
$994,440 + $491,015
$1,485,455
2016
$16,087 (+0.2%)
$994,440 + $491,015
$1,485,455
2015
$16,062 (+2.7%)
$974,941 + $481,388
$1,456,329
2014
$15,639 (+7.1%)
$941,486 + $464,870
$1,406,356
2013
$14,600 (+4.0%)
$941,486 + $464,870
$1,406,356
2012
$14,034 (+3.2%)
$892,926 + $400,831
$1,293,757
2011
$13,598 (+0.6%)
$875,418 + $392,972
$1,268,390
2010
$13,518 (+1.9%)
$858,253 + $385,267
$1,243,520
2009
$13,264 (+2.8%)
$851,839 + $382,388
$1,234,227
2008
$12,902
$853,863 + $383,297
$1,237,160
*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
6
Baths
4.5
Stories
—
Lot width
—
Lot depth
—
Lot size
26,600
Year renovated
2017
Sq. Ft.
5,235
Year built
1971
Style
Single Family Residential
County
Orange County
APN
10455117
Parking Spaces
9
Basement
No
Accessible
No
HOA Dues
—
Garage
Yes
Features
Pool
Last updated by owner on Sep 7, 2025.
E4
Small Estates District
The E4 Small Estates District is established to provide for the development and maintenance of low-medium-density single-family residential neighborhoods in which open spaces and deep setbacks predominate. Only those uses are permitted that are complementary to and can exist in harmony with such a residential neighborhood.
Property details
Parking
Parking / Garage Information
Attached Garage
# of Garage Spaces: 3
Driveway, Direct Garage Access, Garage Door Opener, Garage - Two Door
Has Parking
# of Parking Spaces: 9
Interior
Laundry Information
Inside, Individual Room
Kitchen Information
Has Appliances
Area, Formal Dining Room
Bathroom Information
# of Baths (Full): 2
# of Baths (1/2): 1
# of Baths (3/4): 2
Cooling Information
Central
Has Cooling
Room Information
Attic, All Bedrooms Down, Den, Family Room, Formal Entry, Gym, Library, Living Room, Main Floor Bedroom, Main Floor Primary Bedroom, Primary Suite, Walk-In Pantry, Separate Family Room, Sun
Fireplace Information
Electric, Gas, Wood
Has Fireplace
Flooring Information
Carpet, Tile
Heating Information
Forced Air
Has Heating
Interior Features
Double Door Entry, French Doors
Crown Moldings, Recessed Lighting, Storage Space
Levels: Two
Window Features: Plantation Shutters, Shutters
Exterior
Exterior Information
Roof: Concrete, Tile
Construction Materials: Stucco
Exterior Features
Patio And Porch Features: Covered, See Remarks
Has Patio
Pool Features: Filtered, Heated, In Ground
Has Pool
Lot Information
Lot Size Source: Assessor's Data
Lot Size Dimensions: 140 x 190
Lot Features: Cul-De-Sac, Yard
Property Information
Common Walls: No Common Walls
Living Area Source: Public Records
Parcel Number: 10455117
Year Built Source: Assessor
Utilities
Utilities Information
Sewer: Sewer Paid
Sewer Connected
Water Source: District/Public
Location
School Information
High School District: Tustin Unified
Location Information
Latitude: 33.74829100
Longitude: -117.78541600
Other Subdivision Name: Custom
Directions: Browning / Omega
Subdivision Name: Other (OTHR)
Public facts
Beds: 6
Baths: 4.5
Sq. Ft.: 5,235
Stories: —
Parking Spaces: 9
Basement: No
Accessible: No
Lot Size: 0.61 acres
Style: Single Family Residential
Year Built: 1971
Year Renovated: 2017
County: Orange County
APN: 10455117
HOA Dues: —
Garage: Yes
Features: Pool
Home facts updated by owner on Sep 7, 2025
Other
Listing Information
Days Active in MLS: 115
Continuous Days Active in MLS: 115
Listing Agent Information
List Agent First Name: Mac
List Agent Last Name: Mackenzie
Listing Office Information
List Office Name: Coldwell Banker
Selling Agent Information
Buyer Agent First Name: Laura
Buyer Agent Last Name: Syme
Selling Office Information
Buyer Office Name: Bauhaus Properties
Around this home
Schools
Red Hill Elementary School
Public K-5 • Assigned • 0.7mi
10/10
Hewes Middle School
Public 6-8 • Assigned • 1.9mi
7/10
Foothill High School
Public 9-12 • Assigned • 1.5mi
9/10
Provided by GreatSchools
Lifestyle
Provided by Walk Score and Local Logic
Local insights from Redfin agents
A foothill enclave offering sprawling lots, custom estates, and mature trees—providing a traditional, non-cookie-cutter vibe with no HOAs or Mello-Roos fees unlike neighboring master-planned villages.