Realty.com
Buy

Start here

  • Homes for sale by state
  • Home buying tips
  • Before you start looking
  • The buying timeline

Afford it

  • Today's mortgage rates
  • Mortgage calculator
  • How much can I afford?
  • Get pre-approved

Make the deal

  • Writing a winning offer
  • Inspections & appraisals
  • Closing costs, itemized
  • Find a buyer's agent
Sell

Selling Options

  • What's my home worth?
  • Compare selling options
  • Get an instant cash offer
  • Buy before you sell

Resources

  • How selling works
  • When should I sell?
  • Home selling tips
  • Pricing your home
  • What's worth fixing first
  • Find a seller's agent
Home Loans
Find an Agent
Save searchAdvertiseSign In
Saved homesSaved searchesYour toursYour inquiriesRecently viewedAccount settings

Registered offenders on the map

Save search

Registered offenders on the map

Safety & registry resources

Review official public-safety information for any area from these government sources:

  • U.S. Dept. of Justice National Sex Offender Public Website (NSOPW)
  • FBI: state sex-offender registry directory
Homes Under $300K in Costa Mesa, CA
Realty.com
Buy

Start here

  • Homes for sale by state
  • Home buying tips
  • Before you start looking
  • The buying timeline

Afford it

  • Today's mortgage rates
  • Mortgage calculator
  • How much can I afford?
  • Get pre-approved

Make the deal

  • Writing a winning offer
  • Inspections & appraisals
  • Closing costs, itemized
  • Find a buyer's agent
Save searchAdvertiseSign In
Saved homesSaved searchesYour toursYour inquiriesRecently viewedAccount settings
  • Rentals
  • Commercial

Registered offenders on the map

14 listings
Sell

Selling Options

  • What's my home worth?
  • Compare selling options
  • Get an instant cash offer
  • Buy before you sell

Resources

  • How selling works
  • When should I sell?
  • Home selling tips
  • Pricing your home
  • What's worth fixing first
  • Find a seller's agent
Home Loans
Find an Agent
Save search
3 bedsNew constructionWith a pool

Homes Under $300K in Costa Mesa, CA

Homes Under $300K in Costa Mesa, CA

Hide Map
14 Listings
Map

Homes Under $300K in Costa Mesa, CA

14 Listings

Your local brokerage

TO

Thomas O'Leary

Realty.com

Lic. #01840925

Call Thomas
  1. 1973 Newport Blvd 3 — photo20Active

    $89,500

    1 bd · 1 ba · — sqft

    1973 Newport Blvd 3, Costa Mesa, CA

    JESSICA BOSCH · ehomes

  2. 327 W Wilson 96 — photo14Active

    $129,900

    2 bd · 2 ba · 768 sqft

    327 W Wilson 96, Costa Mesa, CA

    Samuel Su · Samuel Su, Broker

  3. 2191 Harbor 38 — photo10Active

    $149,900

    1 bd · 1 ba · 900 sqft

    2191 Harbor 38, Costa Mesa, CA

    Adela Olivares · New Century Realtors

  4. 327 W Wilson 23 — photo11Active

    $164,000

    2 bd · 2 ba · 735 sqft

    327 W Wilson 23, Costa Mesa, CA

    Raymond Cao · Curb 100% Commission Broker

  5. 1741 Pomona 21 — photo14Active

    $214,900

    2 bd · 1 ba · 620 sqft

    1741 Pomona 21, Costa Mesa, CA

    Samuel Su · Samuel Su, Broker

  6. 1660 Whittier Ave 4 — photo31Active

    $145,000

    1 bd · 1 ba · — sqft

    1660 Whittier Ave 4, Costa Mesa, CA

    Elisa Griego · Elevate Real Estate Agency

  7. 2060 Newport Ave 46 — photo17Active

    $135,000

    2 bd · 1 ba · 728 sqft

    2060 Newport Ave 46, Costa Mesa, CA

    Nuria Misares · C-21 Astro

  8. 1845 Monrovia 76 — photoPrice Reduced29Active

    $299,000

    3 bd · 2 ba · 1,333 sqft

    1845 Monrovia 76, Costa Mesa, CA

    Alfred Maciel · Realty One Group West

  9. 327 W Wilson 80 — photoPrice Reduced15Active

    $144,990

    2 bd · 1 ba · 768 sqft

    327 W Wilson 80, Costa Mesa, CA

    Ivan Mendoza · Camino Real Realtors

  10. 1684 Whittier 20 — photoPrice Reduced1Active

    $210,000

    2 bd · 2 ba · 800 sqft

    1684 Whittier 20, Costa Mesa, CA

    Larry Lambert · Select Housing Group, Inc

  11. 2191 Harbor 75 — photo21Active

    $75,000

    1 bd · 1 ba · 576 sqft

    2191 Harbor 75, Costa Mesa, CA

    Adela Olivares · New Century Realtors

  12. 1684 Whittier 20 — photo9Active

    $210,000

    2 bd · 2 ba · 801 sqft

    1684 Whittier 20, Costa Mesa, CA

    Lori Ovesen · West Capital Real Estate

  13. 1660 Whittier 3 — photo24Active

    $260,000

    1 bd · 1 ba · 640 sqft

    1660 Whittier 3, Costa Mesa, CA

    Arthur Cervantes · Arthur Cervantes Properties Inc

  14. 525 Fairfax 2 — photoPrice Reduced8Active

    $120,000

    1 bd · 1 ba · — sqft

    525 Fairfax 2, Costa Mesa, CA

    Donna Haverlock · Barstow Real Estate

Explore Costa Mesa homes

By price

  • Under $300K
  • Under $500K
  • Under $700K
  • Luxury

By bedrooms

  • 2 beds
  • 3 beds
  • 4 beds
  • 5 beds

By type

  • Single family
  • Townhomes
  • Condos
  • Manufactured homes
  • Multi-family homes
  • Co-ops
Realty.com

L. Custen Realty, Inc. d/b/a Realty.com/L. Custen Realty CT, LLC d/b/a Realty.com (Tom O’Leary-Broker)(CT properties only), 8323 Southwest Freeway, Suite 900, Houston, Texas 77074

Equal Housing OpportunityEqual Housing Lender

The information provided by this website is for the personal, non-commercial use of consumers and may not be used for any purpose other than to identify prospective properties consumers may be interested in purchasing. Listing data is derived from various Multiple Listing Services; each source MLS and its required disclaimer are shown with the listings on the applicable page. Realty.com is an independently owned and operated brokerage.

© 2026 Realty.com. All rights reserved.·Privacy·Terms·California Privacy Rights·Accessibility·Licensing

Listing data & MLS disclosures

San Diego MLS
This information is deemed reliable but not guaranteed. You should rely on this information only to decide whether or not to further investigate a particular property. BEFORE MAKING ANY OTHER DECISION, YOU SHOULD PERSONALLY INVESTIGATE THE FACTS (e.g. square footage and lot size) with the assistance of an appropriate professional. You may use this information only to identify properties you may be interested in investigating further. All uses except for personal, noncommercial use in accordance with the foregoing purpose are prohibited. Redistribution or copying of this information, any photographs or video tours is strictly prohibited. This information is derived from the Internet Data Exchange (IDX) service provided by San Diego MLS. Displayed property listings may be held by a brokerage firm other than the broker and/or agent responsible for this display. The information and any photographs and video tours and the compilation from which they are derived is protected by copyright. Copyright © 2026 San Diego MLS.
  • By feature

    • New construction
    • With a pool

    Your local brokerage

    TO

    Thomas O'Leary

    Realty.com

    Lic. #01840925

    Call Thomas

    Costa Mesa, CA community profile

    Population
    111,638
    Median income
    $99,257
    Housing units
    42,656
    People per sq. mi.
    6,645.1
    Area
    16.8 sq. mi.

    Source: HJN community data

    Costa Mesa housing market

    July 2026 · This period is still settling

    Costa Mesa 12-month median sale price trend

    Selling at 98.9% of asking price

    Buyers here are paying below asking. MLS · 45 sales · as of Jul 20, 2026

    Homes that sold · County records, as of Jul 8, 2026

    Median sale price
    $1,789,000$1,482,500–$3,818,750 typical range
    Price per sq. ft.
    $948
    Sales
    16
    Paid in cash
    43.8%

    Homes on the market · MLS, as of Jul 20, 2026–Jul 21, 2026

    Median list price
    $1,523,500
    Homes for sale
    180
    Median days on market
    34 days

    Price trend · Assessor repeat sales, as of Jul 31, 2026

    Year-over-year
    6.3%

    Housing stock — every home in the area, not only the ones selling or listed · Assessor records, as of Jul 15, 2026

    Median home size
    1,667 sq. ft.