Westside Costa Mesa is the part of the city west of Harbor Boulevard and south of 19th Street, running down toward the Santa Ana River and the Newport border. It is the oldest, densest and most rapidly changing part of Costa Mesa, and it is currently being rebuilt in front of everybody.
I pulled every listing recorded here over the last two years. That is 266 listings, 227 of them closed sales, which makes this one of the busiest markets in the county by transaction count.
Closed sales ran $692,500 to $2,510,000 with a median of $1,250,000, at a median of $737 per square foot and 1,589 square feet. Homes date from 1948 to 2026. The median sale took 13 days.
That price band is the important context. In a county where Newport Beach medians run three to seven million, the Westside is one of the last coastal-adjacent markets where the median transaction starts with a one.
Split the 227 closed sales by the year the house was built and a single structural story falls out.
Read the lot column down that list. The original Westside bungalow sits on 7,200 square feet. The 2015 and newer house sits on 3,084. That is not a coincidence and it is not a different part of town. It is the same land, subdivided.
The consequences run through every other number:
The old small houses cost 43 percent more per square foot than brand new construction. A 1,338 square foot house from the 1950s trades at $1,001 per foot. A 1,967 square foot house completed in the last decade trades at $698. You are paying a premium per foot for the older, smaller house because you are buying more than twice the dirt underneath it.
And the old houses sell three times faster. Pre-1960 stock clears in a median of 10 days. The 2015-and-newer stock takes 31.
Twenty seven percent of all recent sales here are 2015 or newer. Sixty two of 227. This is not a neighborhood with a few new builds sprinkled in. More than a quarter of everything that trades is product that did not exist ten years ago.
This follows directly from the subdivision, and it is the single most practical thing on this page for a buyer comparing two Westside listings.
Of the 62 homes built 2015 or later, 59 report an association fee. That is 95 percent.
The original Westside bungalows on their 7,200 square foot lots overwhelmingly report none.
The reason is structural. When a builder splits an original lot into three or four small-lot parcels, the resulting homes share a driveway, a sewer lateral, landscaping and often a common wall, and that requires an association. So the new house is not just smaller on the ground, it comes with a monthly obligation the older house does not have.
Across all 266 listings, 151 report a fee, ranging from $114 to $660 a month. Common figures include $185, $189, $200, $220, $222, $240, $250, $288, $315, $344, $412, $440, $444, $470, $480, $490, $506, $540, $548, $552, $590, $597 and $660. One listing reports $315 a month plus a $5,000 annual charge.
So when you compare a $1,300,000 original bungalow with no dues against a $1,375,000 new build at $450 a month, the real gap is not $75,000. Over ten years the dues alone add another $54,000, and you are getting less than half the land.
None of which makes the new construction a bad buy. It is newer, larger, and needs nothing. But the two are different products and the per foot comparison actively misleads.
Westside Costa Mesa is the worst-recorded neighborhood I have measured, and it is worth knowing why your online searches here return chaos.
Of the 266 listings, 98 are filed as "Other" and another 37 carry no subdivision code whatsoever. That is 135 of 266, or 51 percent, with no usable tract identification.
The "Other" bucket is where the new construction goes. Those 75 closed sales have a median year built of 2014, which tells you exactly what is happening: the recent small-lot subdivisions have no established tract name, so agents file them under Other and the neighborhood becomes invisible to any tool that groups by subdivision.
The tracts that do have codes are small:
Everything else is scattered across tracts with three or fewer recent sales, or filed under Other.
This is the most competitive market I have measured anywhere in the county, and the numbers are unusually clean about it.
Of the 227 closed sales: 79 closed above the asking price, 35 closed at exactly the asking price, and 113 closed below. The median outcome is 0.00 percent, meaning the typical Westside seller gets precisely the number they asked for.
Set that against the rest of the county from these guides. Newport Coast closed at a median of 3.92 percent under ask with 80 percent of sales below list. Westcliff closed at 1.22 percent under. Westside Costa Mesa closes at zero, with half of all sales at or above the asking price.
Speed backs it up. Ninety four of 227 sales, 41 percent, closed within ten days. Eighteen closed at zero days on market. Only 13 took more than a hundred.
The practical instruction for a buyer is blunt: in this neighborhood, an offer meaningfully below asking on a well presented original house is very likely a waste of everyone's time. The exception is the newer construction, which takes a median of 31 days and is where the negotiating room actually sits.
Splitting the closed sales by whether the home sits on its own parcel or a shared common lot:
Attached: 41 closings, median $975,000, 1,551 square feet, 20 days.
Detached: 156 closings, median $1,325,000, 1,606 square feet, 12 days.
Note that the square footage is almost identical. The $350,000 gap and the eight day speed difference are about the land and the common wall, not the house.
The clearest single illustration of the Westside's redevelopment is 2074 Pomona Avenue. It closed at $950,000 in October 2024 at 875 recorded square feet after 56 days. It closed again at $1,488,000 in November 2025 at 4,277 recorded square feet after 32 days.
An 875 square foot house became 4,277 square feet of recorded improvement in thirteen months, and the price went up $538,000. That is the entire Westside thesis in one address.
Eight addresses traded more than once in the window. Three of them are currently relisted above their most recent close: 809 Brickyard Lane closed at $1,210,000 in October 2024 at zero days and is asking $1,275,000; 1675 Grand View closed at $1,600,000 in October 2025 and is asking $1,735,000; 1945 Sundance closed at $1,060,000 in April 2026 after 7 days and is asking $1,369,000 with 75 more recorded square feet.
Thirty active listings, six in the under contract range and three pending. That is a lot of standing inventory relative to most Newport neighborhoods, but against 227 sales in two years it is well under three months of supply.
Actives run $799,999 to $1,899,000. The whole current market fits inside a band narrower than a single Newport Coast listing.
Nothing currently listed exceeds the highest recorded close of $2,510,000, and nothing is below $799,999. If you have been told the Westside has sub-seven-hundred-thousand inventory, it did over the last two years, but it does not today.
Where is Westside Costa Mesa?
West of Harbor Boulevard and generally south of 19th Street, running toward the Santa Ana River and the Newport Beach border.
What do homes sell for on the Westside?
227 closed sales over the last two years ranged $692,500 to $2,510,000 with a median of $1,250,000.
Is Westside Costa Mesa still affordable?
Relative to the coast, yes. It is one of the few markets this close to the water where the median transaction is under $1,300,000. But nothing currently listed is below $799,999, and the entry point has moved.
Does Westside Costa Mesa have an HOA?
It depends entirely on the vintage. Of the homes built 2015 or later, 59 of 62 report an association fee. The original pre-1960 bungalows overwhelmingly report none. Across all 266 listings, 151 report a fee ranging $114 to $660 a month.
Why do so many new Westside homes have HOA dues?
Because the new product is small-lot subdivision. When an original 7,200 square foot parcel is split into three or four homes, the shared driveway, landscaping and utilities require an association. The median lot for a 2015-and-newer sale here is 3,084 square feet against 7,200 for a pre-1960 sale.
What is the price per square foot?
Median $737, but it splits sharply by age. Pre-1960 houses closed at $1,001 per square foot; houses built 2015 or later closed at $698. The older, smaller houses cost 43 percent more per foot because you are buying more than twice the land.
How big are the lots?
Median 7,150 square feet across all closed sales, but that hides the split: 7,200 for pre-1960 houses, 3,084 for 2015-and-newer.
How big are the homes?
Closed sales medianed 1,589 square feet. Pre-1960 houses medianed 1,338; 2015-and-newer medianed 1,967.
How old are the homes?
Recorded sales span 1948 to 2026. Seventy five of the 227 closed sales were built in the 1950s and 60 were built in the 2010s, so the stock is barbell shaped: original postwar tracts and recent infill, with relatively little in between.
How fast do homes sell on the Westside?
Median 13 days. Ninety four of 227 closed sales went within ten days and 18 closed at zero days on market. Only 13 took more than a hundred.
Do homes sell above asking price on the Westside?
Frequently. Seventy nine of 227 closed above list and another 35 closed at exactly list, so half of all sales met or beat the asking price. The median outcome is 0.00 percent, which is the tightest of any neighborhood measured for these guides.
Which sells faster, an original house or a new build?
The original, by a wide margin. Pre-1960 houses closed in a median of 10 days; 2015-and-newer houses took 31.
Which Westside tracts have real subdivision names?
Freedom Homes (35 recent sales), Westside Costa Mesa South (23), Sunshine Homes West (9), Westside Costa Mesa Central (7), Mesa Bluffs (5), Oceanview Park (4), California Seabreeze (4) and Vendome Condominiums (4). Everything else is scattered or unnamed.
Why do Westside searches return such inconsistent results online?
Because 135 of 266 listings, 51 percent, carry no usable subdivision code. Ninety eight are filed as Other and 37 have no code at all, and the Other bucket has a median year built of 2014, which means the new construction in particular is invisible to any tool that groups by tract.
Which tract sells fastest?
Mesa Bluffs at a median of 7 days, then Freedom Homes at 9 and Vendome at 8.
Are there condos and townhomes on the Westside?
Yes, and a substantial share. Forty one of the closed sales with recorded lot data are on a shared common lot, closing at a median of $975,000 at 1,551 square feet in 20 days, against $1,325,000 and 12 days for detached homes of almost identical size.
Is Freedom Homes part of Westside Costa Mesa?
Yes, geographically, and it accounts for 35 of the 227 recent closed sales. It has its own guide because it is unusually uniform: 26 of its recent sales were built in 1954.
Is it worth redeveloping on the Westside?
The recorded resales suggest the market rewards it. 2074 Pomona Avenue closed at $950,000 in October 2024 at 875 recorded square feet and again at $1,488,000 in November 2025 at 4,277 square feet. Three other repeat addresses are currently relisted above their most recent close.
How much inventory is there right now?
Thirty active listings, six under contract and three pending, running $799,999 to $1,899,000.
How does the Westside compare to Eastside Costa Mesa?
Very differently. Eastside closed at a median of $1,900,000 against $1,250,000 here, and Eastside pre-1960 stock trades at $1,328 per square foot against $1,001 on the Westside. Eastside has its own guide.
Which school district serves Westside Costa Mesa?
Newport Mesa Unified School District. Attendance boundaries are set by the district and do change, so confirm your specific address with the district rather than relying on any listing or portal.
Where does the data on this page come from?
The California Regional MLS, covering every listing recorded in the Southwest Costa Mesa MLS area over the last two years, using recorded closed sales rather than list prices or automated estimates, with tract assignment, dues, dues frequency and list versus close prices read from the structured fields on individual listings. Figures are current as of the last update to this page and should be verified for any specific property.
33,320 people live in Westside Costa Mesa, where the median age is 36 and the average individual income is $40,255. Data provided by the U.S. Census Bureau.
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Population Density Population Density This is the number of people per square mile in a neighborhood.
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Westside Costa Mesa has 11,053 households, with an average household size of 3. Data provided by the U.S. Census Bureau. Here’s what the people living in Westside Costa Mesa do for work — and how long it takes them to get there. Data provided by the U.S. Census Bureau. 33,320 people call Westside Costa Mesa home. The population density is 13,527 and the largest age group is Data provided by the U.S. Census Bureau.
Total Population
Population Density Population Density This is the number of people per square mile in a neighborhood.
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There's plenty to do around Westside Costa Mesa, including shopping, dining, nightlife, parks, and more. Data provided by Walk Score and Yelp.
Explore popular things to do in the area, including BB Bakery, Marin Victor, and Wester Nutrion.
| Name | Category | Distance | Reviews |
Ratings by
Yelp
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|---|---|---|---|---|
| Dining | 0.24 miles | 8 reviews | 3.3/5 stars | |
| Dining | 0.25 miles | 0 reviews | 0/5 stars | |
| Dining | 0.78 miles | 0 reviews | 0/5 stars | |
| Shopping | 0.61 miles | 0 reviews | 0/5 stars | |
| Active | 0.36 miles | 12 reviews | 5/5 stars | |
| Active | 0.76 miles | 0 reviews | 0/5 stars | |
| Active | 0.82 miles | 0 reviews | 0/5 stars | |
| Active | 0.82 miles | 0 reviews | 0/5 stars | |
| Active | 0.82 miles | 0 reviews | 0/5 stars | |
| Active | 0.82 miles | 0 reviews | 0/5 stars | |
| Active | 0.84 miles | 0 reviews | 0/5 stars | |
| Active | 0.85 miles | 0 reviews | 0/5 stars | |
| Active | 0.87 miles | 0 reviews | 0/5 stars | |
| Nightlife | 0.67 miles | 1 review | 5/5 stars | |
| Beauty | 0.57 miles | 0 reviews | 0/5 stars | |
| Beauty | 0.64 miles | 4 reviews | 3/5 stars | |
| Beauty | 0.67 miles | 10 reviews | 5/5 stars | |
| Beauty | 0.75 miles | 10 reviews | 5/5 stars | |
| Beauty | 0.82 miles | 0 reviews | 0/5 stars | |
| Beauty | 0.82 miles | 0 reviews | 0/5 stars | |
| Beauty | 0.87 miles | 0 reviews | 0/5 stars | |
| Beauty | 0.87 miles | 5 reviews | 5/5 stars | |
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