Inputted for Comp purposes :: Prime Eastside Costa Mesa Duplex with ADU Flex Space. Exceptional opportunity in sought-after Eastside Costa Mesa. Set on an expansive 8,276 sq ft lot, this single-level duplex features two 2-bedroom, 1-bath units (4BD/2BA total) totaling approximately 1,520 sq ft of living space. Both units showcase vaulted tongue-and-groove ceilings, dual-pane windows, wood and luxury vinyl plank flooring, and updated kitchens and baths. Unit 433 features a larger primary bedroom that opens directly to the backyard with custom decking, creating a seamless indoor-outdoor retreat. The 433 unit also enjoys an additional outdoor shower and private sauna, enhancing the property’s coastal lifestyle appeal. The detached 361sqft structure is currently configured as a flex space/office and offers excellent ADU potential (buyer to verify). Both 431 and 433 have direct access to this versatile space, providing added flexibility for work, guests, or future rental income. New landscaping and fencing further elevate the property’s curb appeal and privacy, while mature trees and thoughtfully designed outdoor areas create inviting spaces to relax or entertain. A detached 2-car garage, carport, and additional driveway parking complete the offering. Ideally located near
MLS #
CROC26039996
MLS Source
California Regional MLS
Bedrooms
Ground Floor Bedroom
Kitchen
Other
Appliances
Dishwasher, Other
Fireplace
None
Flooring
Laminate
Laundry
In Garage
Cooling
None
Heating
Central Forced Air
Foundation
Raised
Pool
None
Garage/Parking
Carport, Garage, Garage: 2 Car(s)
Elementary District
Newport-Mesa Unified
High School District
Newport-Mesa Unified
HOA Fee
$0
433 431 E 19th is a Duplex in Costa Mesa, CA 92627. This 1,520 square foot property sits on a 8,276 Sq Ft Lot and features 2 bedrooms & 2 full bathrooms. It is currently priced at $2,450,000 and was built in 1951. This address can also be written as 433 431 E 19th, Costa Mesa, CA 92627.
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This listing information is up-to-date as of February 24, 2026. For the most current information, please contact Nick Dodd