308 E 18th Street, Costa Mesa, California 92627, Costa Mesa, 92627 - bed, bath

308 E 18th Street, Costa Mesa, California 92627 home-pic-0

308 E 18th Street

Costa Mesa, California 92627

ACTIVE
CONDITION: EXCELLENT
0Beds
0Baths
3,039Sq Ft
8,506Lot Size

Property Price

LIST PRICE$4,100,000
EST. MARKET VALUE
$4,160,962

SUMMARY

Estimated Market Value

$4,160,962
Based on Realkey algorithm analyzing recent comparable sales in Costa Mesa.

Comparable Sales Map

Comparables within 1 miles sold in recently

Address Sold Price BedsBathsSq Ft$/SqftDistance
308 E 18th Street
Subject
$4,100,000*
List Price
3,039$1,369-
A
224 Flower Street
Sold
$4,190,000443,278$1,2780.3 mi
B
275 Walnut
Sold
$4,300,000553,271$1,3150.4 mi
C
418 Broadway
Sold
$3,615,000432,316$1,5610.3 mi
D
2042 Aliso Avenue W
Sold
$3,795,000432,306$1,6460.7 mi
E
1951 Aliso Avenue
Sold
$2,995,000332,515$1,1910.5 mi
F
452 Broadway
Sold
$3,369,000322,202$1,5300.4 mi
G
412 Magnolia Street
Pending
$3,999,000
List Price
442,909$1,3750.3 mi

* Subject property listed price vs sold prices of comps.

Condition Analysis

OVERALL CONDITION SCORE

Excellent
TeardownExcellent

Property is new construction or fully renovated.

The property has undergone an extensive recent renovation to achieve a modern executive aesthetic. It features a high-end chef's kitchen with premium Thermador appliances and a quartz social island, along with updated flooring and professional accessibility modifications. While originally built in 1995, the quality of the recent upgrades and the lack of deferred maintenance align with the criteria for excellent condition.

PROSSTRENGTHS & OPPORTUNITIES

  • Institutional Use Potential

    The property occupies a rare zoning niche for Institutional and Recreational Use, making it a turnkey, high-yield asset for RCFE operators or boutique business startups.

  • Accessibility Infrastructure

    Equipped with a professionally installed accessible ramp and multiple main-level bedrooms/bathrooms, the home offers a significant 'speed-to-market' advantage for care facility licensing.

  • Prime Eastside Location

    Situated in a highly desirable pocket near 17th Street amenities and Hoag Hospital, the property combines a 3,039 sq. ft. modern executive interior with a large 8,500 sq. ft. lot.

CONSRISKS & DEFICIENCIES

  • Aggressive Pricing Premium

    The $4.1M list price reflects a massive premium compared to its $2.599M sale in 2022, which may be difficult to justify for buyers not utilizing the specialized business zoning.

  • Niche Market Appeal

    The modifications and layout optimized for high-capacity resident use may limit the property's appeal to traditional single-family residential buyers.

About 308 E 18th Street

Unlock an extraordinary high-yield investment in the heart of Eastside Costa Mesa. Positioned within a rare zoning niche that favors Institutional and Recreational Use. This is more than a home; it is a scalable business asset. Whether launching a boutique startup or scaling to a maximum-capacity facility, the bones and location of 308 E 18th St are unmatched for high-income potential. • Capacity & Scale: 3,039 Sq. Ft. of refined living space on 8,500 Sq. Ft. lot. Significant room for outdoor recreation or potential expansion of resident capacity. • Accessibility Ready: Professionally installed accessible approach ramp and multiple main-level bedrooms/bathrooms, drastically reducing initial "Speed-to-Market" licensing costs for RCFE operators. • Modern Executive Aesthetic: Open-concept chef’s kitchen with Thermador appliances and quartz social island; ideal for high-end nutritional programming or private chef services. • Strategic Location: Prime Eastside pocket with immediate access to 17th St amenities, Mariners Elementary zone, and Hoag Hospital/Newport medical hubs. • Operators can leverage the massive footprint to scale room count and resident capacity through city-approved reconfigurations.

Property Details

Public Facts

Property Type
Single Family Residence
Year Built
1995
Lot Size
8,506 Sq. Ft.

Interior

Total Bedrooms
-
Total Bathrooms
-

Exterior & Parking

No exterior & parking available.

Utilities & Misc

HOA Fee
$0 / Month

Neighborhood Insights

Costa Mesa Unified Schools

Mariners Elementary School

Grades PK-6 • 0.6 mi

8/10

Woodland Elementary School

Grades PK-2 • 0.6 mi

/10

Heinz Kaiser Elementary School

Grades 3-6 • 0.8 mi

8/10

Sensitive Facilities

No sensitive facilities data found.

Neighborhood Comparison

FeatureSubjectAverage HomeNeighborhood Ranking (50 Listings)
Beds-3.0
2%
Baths-3.0
2%
Square foot3,0391,799.5
88%
Lot Size8,5066,377.5
91%
Price$4.10M$1.66M
95%
Price per sq ft$1.3K$1.0K
84%
Built year19951957
76%
HOA$0$0
50%
Days on market24157
1%

Pricing History

Listed for Sale

Feb 11, 2026

$4,100,000

Initial Listing

Sold

Sep 26, 2022

$2,599,000

Public Record

Sold

Sep 21, 2020

$1,100,000

Public Record

Browse Properties by State Browse housing market trends by state