A rare chance awaits in highly desirable Eastside Costa Mesa! Situated on a spacious 7,279 sq.ft. lot with generous green space, this versatile property offers immense potential – whether you’re looking to create your dream home, accommodate multi-generational living or explore an attractive investment.
Property currently features two separate residences with a totoal of 1,750 sq.ft. of living area: Main Residence is appx. 1,160 sq.ft. featuring 3 bedrooms, 1.5 baths and a large enclosed patio room offering flexible bonus space. – Back residence / ADU is appx. 590 sq.ft., newly renovated with a full bath and tucked toward the rear of the lot for optimal privacy and separatrion.
Located on a quiet, clu-de-sec, you’ll enjoy convenient access to freeways, highly regarded schools, the Upper Newport Bay Nature Preserve, Newport Beach, Corona del Mar and Pacific Coast Hifhway. (For a detailed layout and site plan of both structures, please refer to the CMP Apprisal Building Sketch included at the end of the photo gallery.) Bring your vision and make this prime Eastside property your own.
Property is being sold in AS-IS condition; seller will make no repairs.
Property currently features two separate residences with a totoal of 1,750 sq.ft. of living area: Main Residence is appx. 1,160 sq.ft. featuring 3 bedrooms, 1.5 baths and a large enclosed patio room offering flexible bonus space. – Back residence / ADU is appx. 590 sq.ft., newly renovated with a full bath and tucked toward the rear of the lot for optimal privacy and separatrion.
Located on a quiet, clu-de-sec, you’ll enjoy convenient access to freeways, highly regarded schools, the Upper Newport Bay Nature Preserve, Newport Beach, Corona del Mar and Pacific Coast Hifhway. (For a detailed layout and site plan of both structures, please refer to the CMP Apprisal Building Sketch included at the end of the photo gallery.) Bring your vision and make this prime Eastside property your own.
Property is being sold in AS-IS condition; seller will make no repairs.
Property Details
Price:
$1,849,000
MLS #:
NP26197064
Status:
Active Under Contract
Beds:
4
Baths:
3
Type:
Single Family
Subtype:
Single Family Residence
Subdivision:
Eastside North ENCM
Neighborhood:
c5eastcostamesa
Listed Date:
Sep 8, 2026
Finished Sq Ft:
1,750
Lot Size:
7,279 sqft / 0.17 acres (approx)
Year Built:
1958
See this Listing
Schools
School District:
Newport Mesa Unified
Interior
Appliances
DW
Bathrooms
2 Full Bathrooms, 1 Half Bathroom
Cooling
NO
Laundry Features
IG
Levels
A
Main Level Bathrooms
2
Main Level Bedrooms
3
Exterior
Attached Garage YN
1
Common Walls
NCW
Community Features
CRB
Garage Spaces
2
Parking Spots
2
Parking Total
2
View
NO
Financial
Map
Community
- Address278 Santo Tomas Costa Mesa CA
- SubdivisionEastside North (ENCM)
- CityCosta Mesa
- CountyOrange
- Zip Code92627
Subdivisions in Costa Mesa
- Award AWAR
- Bay Laurel ENBY
- College Park COLP
- Coral Point CORP
- Country Club I ICC1
- Country Club Manor ENCC
- Del Cerro DELC
- Eastside Central ECCM
- Eastside Heights EHCM
- Eastside South ESCM
- Freedom Homes FREE
- Greenbrook By Larwin GBLR
- Halecrest HALE
- Harbor Pointe Condos HPTC
- Mesa Del Mar MDMA
- Mesa Verde Collection MVCO
- Mesa Verde Residential Income MVRI
- Mesa Verde Villas Iowa St. MVVL
- Monticello Townhomes MONT
- Newport Riviera ENNR
- Oceanview Park OCPK
- Pacesetter One Story ICPI
- State Streets II MST2
- Village Creek VLCK
- Westside Costa Mesa Central WCMC
- Westside Costa Mesa South WSCM
- Wilson Park Condos WPKC
Market Summary
Current real estate data for Single Family in Costa Mesa as of Oct 06, 2026
267
Single Family Listed
72
Avg DOM
601
Avg $ / SqFt
$1,170,805
Avg List Price
Property Summary
- Located in the Eastside North (ENCM) subdivision, 278 Santo Tomas Costa Mesa CA is a Single Family for sale in Costa Mesa, CA, 92627. It is listed for $1,849,000 and features 4 beds, 3 baths, and has approximately 1,750 square feet of living space, and was originally constructed in 1958. The current price per square foot is $1,057. The average price per square foot for Single Family listings in Costa Mesa is $601. The average listing price for Single Family in Costa Mesa is $1,170,805.
Similar Listings Nearby
278 Santo Tomas
Costa Mesa, CA


