Sold
644 Ross sold on October 16, 2026 for $900,000, 0.1% above the $899,000 asking price after 8 days on the market. The buyer paid cash. The details are below for reference.
644 Ross, Costa Mesa, CA 92627
- 3 beds
- 2 baths
- 971 sq ft
- 6,600 sq ft lot
- Built 1955
Own 644 Ross? Request a free home valuation to see what it is worth today.
$900,000
Subdivision Westside Costa Mesa South
9 single-family homes sold in the past 12 months · median $1,205,000
The home
About 644 Ross
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.
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. The home was built in 1955. The MLS record lists the assessor parcel number as 422-232-16. 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.
Specifications
Home Details
At a glance
- Price
- $900,000
- Days On Site
- N/A
- Bedrooms
- 3
- Inside Area (SqFt)
- 971 sqft
- Total Baths
- 2
- Full Baths
- 1
- Partial Baths
- 1
- Lot Size
- 6,600 SqFt
- Year Built
- 1955
- MLS® Number
- OC26199151
- Status
- Sold
- Property Tax
- N/A
- HOA/Condo/Coop Fees
- N/A
- Sq Ft Source
- Assessor
General Features
- Property Type
- Single Family Residence
- MLS Number
- OC26199151
- Year Built
- 1955
- Living Area (sq ft)
- 971
- Living Area Source
- Assessor
- Lot Size (sq ft)
- 6,600
- Lot Size (acres)
- 0.1515
- Levels
- One
- Bedrooms
- 3
- Full Baths
- 1
- Half Baths
- 1
- Garage Spaces
- 2
- Parking Spaces
- 2
- View
- None
- Parcel Number
- 42223216
- On Market Date
- 2026-09-10
- Listing Terms
- Standard
Interior Features
- Interior Features
- All Bedrooms Down
- Cooling
- None
- Fireplace
- None
- Laundry
- None
- Main Level Bedrooms
- 3
- Main Level Bathrooms
- 2
- Entry Level
- 1
- Common Walls
- No Common Walls
- Rooms
- Bedroom
Exterior Features
- Lot Features
- Yard
- Pool Features
- None
- Sewer
- Public Sewer
- Water
- Public
- Units
- 1
Community Features
- Subdivision
- Westside Costa Mesa South (WSCM)
- Community Features
- Sidewalks
The record
Property History for 644 Ross
| Date | Event | Price | Note |
|---|---|---|---|
| Oct 16, 2026 | Sold | $900,000 | |
| Sep 19, 2026 | Status changed to Pending | From Active | |
| Sep 10, 2026 | Listed for sale | $899,000 |
No prior MLS sales on record for this home since 2012.
Added by Realatrends Real Estate
Flood, Fire and Earthquake Zones for 644 Ross
We looked up this home's map point in public government maps. These facts are not part of the MLS listing.
Hazard zones
- Flood zone
Zone X, area of minimal flood hazard. Outside FEMA's Special Flood Hazard Area.
FEMA National Flood Hazard Layer, FIRM panel 06059C0268J effective December 3, 2009. Checked October 15, 2026.
- Fire hazard severity zone
Not in a fire hazard severity zone on the State Fire Marshal's map.
CAL FIRE, State Fire Marshal map for Local Responsibility Areas, March 24, 2025. Checked October 15, 2026.
- Earthquake fault zone
Outside the Alquist-Priolo Earthquake Fault Zones.
California Geological Survey, Earthquake Fault Zones map, Newport Beach quadrangle, released July 1, 1986. Checked October 15, 2026.
- Liquefaction zone
Outside the liquefaction zones.
California Geological Survey, Seismic Hazard Zones map, Newport Beach quadrangle, released April 15, 1998. Checked October 15, 2026.
- Landslide zone
Outside the earthquake-induced landslide zones.
California Geological Survey, Seismic Hazard Zones map, Newport Beach quadrangle, released April 15, 1998. Checked October 15, 2026.
Internet and charging
- Fixed internet
Fiber: AT&T, up to 5,000 Mbps, at 18 of 18 residential locations in this census block. Cable: Spectrum, up to 1,000 Mbps, at 18 of 18. DSL: AT&T, up to 50 Mbps, at 17 of 18.
FCC National Broadband Map, provider-reported data as of December 31, 2025, for census block 060590637011004, not for this address. Not endorsed by the FCC. Checked October 15, 2026.
- EV charging
Nearest public charger 0.4 miles away (1 Level 2 port). 301 public charging ports within 3 miles.
U.S. Department of Energy, Alternative Fuels Data Center. Straight-line distance. Checked October 15, 2026.
These facts are for the listing's map point, which can sit off the lot. A zone line can also cross a lot, and agencies revise their maps. In cities, the fire zone line follows the State Fire Marshal's 2025 map; each city adopts its own map and may add areas. These lines are not a Natural Hazard Disclosure. Check the official maps and the seller's disclosures before you rely on them. Sources for the earthquake zone lines: Reproduced with permission, California Geological Survey, Webservice of Official Maps of Alquist-Priolo Earthquake Fault Zones (2025). Reproduced with permission, California Geological Survey, Webservice of Official Maps of Seismic Hazard Zones (2025).
Official maps
Next steps
Looking for something similar
644 Ross is no longer on the market, but comparable homes come up in Costa Mesa regularly. We can tell you what this one actually closed at and set up alerts for listings that match it.
Selling near 644 Ross
Thinking of selling nearby? We bring current Westside Costa Mesa South sales data and a clear pricing strategy to every listing, backed by more than 700 closed sales and over $1B in Orange County volume. Start with a free home valuation, or reach out to talk through your options.
The neighborhood
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.
Westside Costa Mesa South home sales, past 12 months
- Homes sold
- 9
- Median price
- $1,205,000
- Median days on market
- 8
- Median per sq ft
- $927
Recorded MLS closings of single-family homes, Oct 20, 2025 to Oct 20, 2026. Days on market run from listing to going under contract.
Recent Westside Costa Mesa South sales
| Address | Closed | Price | Sq ft | Per sq ft | Days on market |
|---|---|---|---|---|---|
| 644 Ross | Oct 16, 2026 | $900,000 | 971 | $927 | 8 |
| 730 Lynn Court | Oct 9, 2026 | $1,120,000 | 1,745 | $642 | 66 |
| 395 Victoria | Jul 14, 2026 | $1,004,000 | 1,620 | $620 | 7 |
| 2235 Canyon | Mar 31, 2026 | $1,650,000 | 840 | $1,964 | 4 |
| 1953 Maple | Mar 10, 2026 | $1,340,000 | 1,377 | $973 | 5 |
See 5 homes for sale in Westside Costa Mesa South Costa Mesa housing market
Schools
School District for 644 Ross
As listed in the MLS record. Confirm attendance boundaries with the school district.
The MLS record lists the school district as Newport Mesa Unified.
Living in Costa Mesa covers its schools, parks and beaches.
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Listed by Brian Doubleday of Doubleday Group
Listing information updated Oct 18, 2026 at 4:52 PM PT. Source: CRMLS.
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.