REALATRENDS REAL ESTATE SERVICES, INC 949·494·8830
REALATRENDS

For Sale|DuplexPending

220 Knox, Costa Mesa, CA 92627

  • 4 beds
  • 2 baths
  • 1,627 sq ft
  • Built 1950

MLS# PW26180884 · Listed Aug 20, 2026 · 45 Days On Site

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

DateEventPriceNote
Aug 20, 2026 Listed for sale $2,000,000

Cost of ownership

Estimated monthly payment

7.03% · 30-yr fixed
$
$15,345/mo
10% down · 30-year fixed · $200,000 down
Principal & interest$12,012
Mortgage insurance (est., over 80% LTV)$750
Property tax (est. 1.2%)$2,000
Home insurance (rough est., varies widely)$583
HOANot reported, not included
$13,260/mo
20% down · 30-year fixed · $400,000 down
Principal & interest$10,677
Property tax (est. 1.2%)$2,000
Home insurance (rough est., varies widely)$583
HOANot reported, not included
$11,925/mo
30% down · 30-year fixed · $600,000 down
Principal & interest$9,342
Property tax (est. 1.2%)$2,000
Home insurance (rough est., varies widely)$583
HOANot reported, not included
Estimated carrying cost
$2,583/mo
All cash · taxes and insurance only
Principal & interestNone (cash purchase)
Property tax (est. 1.2%)$2,000
Home insurance (rough est., varies widely)$583
HOANot reported, not included

Estimate 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

Want to see 220 Knox in person? We have guided buyers through Eastside Heights and the wider Costa Mesa market since 1983. Call to arrange a private tour, or send a note and we'll follow up.

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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.

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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

This home, asking 12-month median Recent sales, listed below

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

AddressClosedPriceSq ftPer sq ftDays 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.

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