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644 RossCosta Mesa, CA 92627
Opportunity awaits at 644 Ross Street in Costa Mesa. Situated on an approximately 6,600-square-foot lot, this 3-bedroom, 2-bath home presents an excellent opportunity for an investor, contractor, developer, or buyer looking to take on a substantial renovation project and create something of their own. The property is in need of significant repairs and is being sold in its present AS-IS condition. Known conditions include foundation-related issues, along with additional deferred maintenance and other property deficiencies. This is not a cosmetic fixer and will require a buyer prepared to undertake substantial improvements.
| 21 hours ago | Listing first seen on site | |
| 21 hours ago | Listing updated with changes from the MLS® |
This information is for your personal, non-commercial use and may not be used for any purpose other than to identify prospective properties you may be interested in purchasing. The display of MLS data is usually deemed reliable but is NOT guaranteed accurate by the MLS. Buyers are responsible for verifying the accuracy of all information and should investigate the data themselves or retain appropriate professionals. Information from sources other than the Listing Agent may have been included in the MLS data. Unless otherwise specified in writing, the Broker/Agent has not and will not verify any information obtained from other sources. The Broker/Agent providing the information contained herein may or may not have been the Listing and/or Selling Agent.
Property Details for 644 Ross
This 3-bedroom, 2-bath single-family home sits in the Westside Costa Mesa South neighborhood of Costa Mesa in Orange County. It offers 971 square feet of living space and is listed at $899,000, about $926 per square foot. The home was built in 1955. Highlights include single-story living, a two-car garage, and a 6,599-square-foot lot. The detail sections on this page cover interior and exterior features, estimated taxes, HOA dues where they apply, and the map location.
About Costa Mesa
Costa Mesa sits on the coastal tableland of central Orange County, bordered by Santa Ana, Huntington Beach, and Newport Beach, with its southern edge about a mile from the Pacific. South Coast Plaza, the Segerstrom Center for the Arts, the Orange County Fairgrounds, Orange Coast College, and the Eastside and Mesa Verde neighborhoods all fall within the Newport-Mesa Unified School District.
In Westside Costa Mesa South, 10 single-family homes have closed in the last 12 months at a median of $1,414,000, based on recorded MLS closings. The median was 29 days on market before going under contract.
Estimated monthly payment
6.71% · 30-yr fixedEstimate only, not a loan offer or quote. Principal and interest use the Freddie Mac 30-year fixed average of 6.71% (week of Sep 3, 2026); your rate will differ. A loan this size is typically a jumbo loan, which prices differently. Tax and insurance are modelled, not billed amounts; tax uses a typical Costa Mesa rate, excluding Mello-Roos. Verify all figures. Full assumptions and disclosures.
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Selling near 644 Ross
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Also for sale in Costa Mesa: 1950 Anaheim, 730 Lynn Court, 553 Bernard, 549 Bernard.
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