37
$1,849,000
4 bd · 3 ba · 1,750 sqft
278 Santo Tomas, Costa Mesa, CA
Suzanne Wyrick · Wyrick & Associates Real Estate · on 2 MLSs
Est. $13,565/mo$1,194/sqft · 9 days on Realty
4
Beds
2
Baths
1,800
Sqft
1978
Built
RARE DUPLEX OPPORTUNITY IN EAST COSTA MESA! First time on the market in over 60 years. This exceptional property consists of two separate units measuring 900 sq. ft each. The rear unit boasts its own large private backyard. Situated directly across the street to Heller Park, the location is unbeatable, positioned just blocks from the vibrant dining and retail scene along 17th Street and only six minutes to Newport Beachs Balboa Peninsula. With the back unit vacant and ready to be rented and the unit in front already rented, providing immediate, stable income, this rare property is a prime candidate for future multi-unit redevelopment on this lot. Located with the prestigious Newport Mesa Unified School District and close the renowned back bay loop for outdoor enthusiasts, this property epitomizes the best of Costa Mesa living. Dont miss the opportunity to make this duplex your next investment. Call today to schedule a tour.
Listing agent
Tricia Poissonnier
Courtesy of HomeSmart, Evergreen Realty
(949) 910-4744
San Diego MLS · Listing OC26205781
Choose a source to show its complete, unblended listing record.
Showing San Diego MLS
San Diego MLSCourtesy of HomeSmart, Evergreen Realty · (949) 910-4744
Listing agent: Tricia Poissonnier · Listing OC26205781
California Regional Multiple Listing Service (CRMLS)Courtesy of HomeSmart, Evergreen Realty · (949) 910-4744
Listing agent: Tricia Poissonnier · Listing OC26205781
$430,000
Estimated monthly payment
$13,565/mo
Loan amount $1,720,000. Estimate only — your actual rate and payment depend on credit, location, and lender.
School ratings (A+ to F) from HJN community data.
Newport Heights Elementary School
KG-6 · Regular · Newport-Mesa Unified School District
502 students · 19.3:1 student–teacher
International School for Science and Culture
KG-8 · Regular · International School for Science and Culture District
97 students · 19.4:1 student–teacher
Harper
Regular · Newport-Mesa Unified School District
Newport Harbor High School
9-12 · Regular · Newport-Mesa Unified School District
2,084 students · 22.6:1 student–teacher
Horace Ensign Intermediate School
7-8 · Regular · Newport-Mesa Unified School District
875 students · 20.9:1 student–teacher
Mariners Elementary School
KG-6 · Regular · Newport-Mesa Unified School District
573 students · 18.7:1 student–teacher
Carden Hall
PK-8 · Regular
407 students · 6.8:1 student–teacher
Woodland Child Devt Center
PK-5 · Special Program Emphasis
35 students · 14.0:1 student–teacher
California Regional Multiple Listing Service (CRMLS)
San Diego MLS
The MLS (CLAW)This content last refreshed on 2026-10-01 05:22:07 UTC. Some properties which appear for sale on this web site may subsequently have sold or may no longer be available.
37
$1,849,000
4 bd · 3 ba · 1,750 sqft
278 Santo Tomas, Costa Mesa, CA
Suzanne Wyrick · Wyrick & Associates Real Estate · on 2 MLSs
Price Reduced42$1,595,000
3 bd · 3 ba · 1,576 sqft
674 Senate Street, Costa Mesa, CA
George Hanold · Times Real Estate CA · on 2 MLSs
New23$2,299,000
4 bd · 3 ba · 2,336 sqft
1801 Nantucket Place, Costa Mesa, CA
SHIRLEY CHOMPF · LYNNE B WILSON & ASSOCIATES · on 2 MLSs
1$1,600,000
5 bd · 3 ba · 2,668 sqft
544 Bernard St, Costa Mesa, CA
T.N.G. Real Estate Consultants · on 3 MLSs
Price Reduced28$1,550,000
3 bd · 4 ba · 2,101 sqft
629 W 17th, Costa Mesa, CA
Legendary Investment Commercial Alliance · on 3 MLSs
42$1,749,000
4 bd · 4 ba · 2,284 sqft
2199 National, Costa Mesa, CA
Keith Jorgensen · Coldwell Banker Realty · on 2 MLSs





Within 2 miles of this home: 38+ restaurants and cafés, 11 grocery stores, 40+ parks and green spaces, and 28+ transit stops.
Place data from OpenStreetMap.
Raising Cane's
Vibe Costa Mesa
East 17th Street
Pancakes R Us
Crack Shack
Baja Fish Tacos
Milligram Coffee and Kitchen
East 17th Street
Chick-fil-A
Newport Boulevard
The Flame Broiler
Asian restaurant
Vons
East 17th Street
Sprouts Farmers Market
East 17th Street
Trader Joe's
West 17th Street
Ralphs
East 17th Street
Grocery Outlet
Mother's
Smart & Final
West 19th Street
Pavilions
West Balboa Boulevard
Heller Park Playground
Heller Park
East 16th Street
Pinkley Park
Ogle Street
Bolsa Park
Lions Park Playground
Harper Park
East 18th Street
Cliff Drive Park
Lions Park
West 18th Street
17th-Orange
17th-Santa Ana
17th-Newport
17th-Superior
Newport-17th
17th-Pomona
17th-Tustin
Newport-18th