

220 Knox, Costa Mesa, CA 92627
- 4 beds
- 2 baths
- 1,627 sq ft
- Built 1950
Subdivision Eastside Heights
This property is also on the market under MLS OC26179490 (Residential Income).
The home
About 220 Knox
RARE MULTI-FAMILY OPPORTUNITY! First time on the market in over 60 years, 220 and 226 Knox Place offer a generation-defining acquisition preferred to be sold together. This exceptional property consists of two separate side-by-side duplexes that look, feel, and function as a seamless fourplex connected by a shared driveway. The portfolio features four spacious two-bedroom, one-bathroom units, with each duplex measuring approximately 1,627 sq. ft., making each individual unit roughly 813 sq. ft. of comfortable living space complete with individual laundry hookups. Enhancing their appeal, both rear units boast their own private backyards and dedicated two-car garages, with one even featuring a charming three-season sunroom. Situated directly adjacent to Heller Park with no side neighbors for maximum privacy, the location is unbeatable, positioned just blocks from the vibrant dining and retail scene along 17th Street and only six minutes to Newport Beach’s Balboa Peninsula. With three tenant-occupied units providing immediate, stable income, this rare property serves as both a high-performing income asset and a premier candidate for future multi-unit redevelopment on two adjacent parcels.
Property details for 220 Knox
This 4-bedroom, 2-bath duplex sits in the Eastside Heights neighborhood of Costa Mesa in Orange County. It offers 1,627 square feet of living space and is listed at $2,000,000, about $1,229 per square foot. The home was built in 1950. The MLS record lists the assessor parcel number as 425-334-11. Highlights include single-story living and a two-car garage. 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
- $2,000,000
- Days On Site
- 45 Days
- Bedrooms
- 4
- Inside Area (SqFt)
- 1,627 sqft
- Total Baths
- 2
- Full Baths
- 2
- Partial Baths
- N/A
- Lot Size
- N/A
- Year Built
- 1950
- MLS® Number
- PW26180884
- Status
- Pending
- Property Tax
- N/A
- HOA/Condo/Coop Fees
- N/A
- Sq Ft Source
- Assessor
General Features
- Property Type
- Duplex
- MLS Number
- PW26180884
- Year Built
- 1950
- Living Area (sq ft)
- 1,627
- Living Area Source
- Assessor
- Lot Size (sq ft)
- 6,259
- Lot Size (acres)
- 0.1437
- Levels
- One
- Bedrooms
- 4
- Full Baths
- 2
- Garage Spaces
- 2
- Parking Spaces
- 2
- View
- None
- Parcel Number
- 42533411
- On Market Date
- 2026-08-20
- Listing Terms
- Standard
Interior Features
- Interior Features
- All Bedrooms Down
- Heating
- Wall Furnace
- Cooling
- None
- Fireplace
- None
- Laundry
- Inside
- Main Level Bedrooms
- 4
- Main Level Bathrooms
- 2
- Entry Level
- 1
- Common Walls
- No Common Walls
- Rooms
- Bedroom
Exterior Features
- Lot Features
- Zero To One Unit Acre
- Pool Features
- None
- Sewer
- Public Sewer
- Units
- 2
Community Features
- Subdivision
- Eastside Heights (EHCM)
- Community Features
- Biking, Dog Park, Park, Street Lights, Sidewalks
The record
Property History for 220 Knox
| Date | Event | Price | Note |
|---|---|---|---|
| Aug 20, 2026 | Listed for sale | $2,000,000 |
Cost of ownership
Estimated monthly payment
7.03% · 30-yr fixedEstimate only, not a loan offer or quote. Principal and interest use the Freddie Mac 30-year fixed average of 7.03% (week of Sep 24, 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.
Next steps
Buying 220 Knox
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Selling near 220 Knox
Thinking of selling nearby? We bring current Eastside Heights 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.
Costa Mesa home sales, past 12 months
- Homes sold
- 6
- Median price
- $1,885,000
- Median days on market
- 24
- Median per sq ft
- $901
Recorded MLS closings of duplexes, Sep 26, 2025 to Sep 26, 2026. Days on market run from listing to going under contract.
Price per square foot against recent Costa Mesa sales
At $1,229 per square foot, this home's asking price is 36% above the Costa Mesa median of $901 for duplexes that closed in the past 12 months.
Recent Costa Mesa sales
| Address | Closed | Price | Sq ft | Per sq ft | Days on market |
|---|---|---|---|---|---|
| 635 Plumer | Aug 21, 2026 | $1,550,000 | 2,562 | $605 | 87 |
| 782 W 18th Street | Jul 30, 2026 | $1,600,000 | 1,940 | $825 | 24 |
| 270 Albert Place | Mar 5, 2026 | $3,350,000 | 3,000 | $1,117 | 144 |
| 433 431 E 19th | Feb 20, 2026 | $2,450,000 | 1,520 | $1,612 | 0 |
| 2195 American Avenue | Dec 4, 2025 | $1,670,000 | 2,191 | $762 | 0 |
Schools
School District for 220 Knox
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.
Location
Location
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Listed by Justin Itzen of The Oppenheim Group
Listing information updated Sep 24, 2026 at 4:15 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.