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Exceptional investment opportunity in Eastside Costa Mesa. 135 Del Mar is a fully occupied duplex situated on an expansive and well-shaped 10,454 square foot lot, offering immediate income with significant upside potential. Whether you're an investor looking to strengthen your portfolio or a developer seeking your next project, this property delivers flexibility, scale, and long-term value. The existing duplex provides stable, in-place rental income while you explore a range of possibilities. The oversized lot configuration presents excellent ADU potential, allowing you to increase cash flow and maximize returns. With generous dimensions and favorable layout, the site may also offer compelling development opportunities (buyer to verify with the city), making it ideal for those looking to build additional units or reimagine the property entirely. Located in a highly desirable area close to beaches, shopping, dining, and major freeways, this property benefits from strong rental demand and long-term appreciation fundamentals. Large parcels like this are increasingly rare"”especially with an income-producing structure already in place. Collect rent today. Add value tomorrow. Unlock the full potential of this prime Eastside Costa Mesa property.
| DAYS ON MARKET | 25 | LAST UPDATED | 3/16/2026 |
|---|---|---|---|
| TRACT | None | YEAR BUILT | 1951 |
| COMMUNITY | C5 - East Costa Mesa | GARAGE SPACES | 2.0 |
| COUNTY | Orange | STATUS | Active |
| PROPERTY TYPE(S) | Residential Income |
| PRICE HISTORY | |
| Prior to Mar 16, '26 | $1,700,000 |
|---|---|
| Mar 16, '26 - Today | $1,675,000 |
| ADDITIONAL DETAILS | |
| AREA | C5 - East Costa Mesa |
|---|---|
| GARAGE | Yes |
| LOT | 10454 sq ft |
| LOT DIMENSIONS | 10454 |
| POOL DESCRIPTION | None |
| SEWER | Public Sewer |
| STORIES | 1 |
| SUBDIVISION | None |
| WATER | Public |
TOTAL MONTHLY PAYMENT
| SATELLITE VIEW |
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Based on information from California Regional Multiple Listing Service, Inc. as of 3/20/26 7:14 AM PDT and /or other sources. All data, including all measurements and calculations of area, is obtained from various sources and has not been, and will not be, verified by broker or MLS. All information should be independently reviewed and verified for accuracy. Properties may or may not be listed by the office/agent presenting the information
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