Medical office space · data as of September 2026
181 E 18th St, Costa Mesa
1 medical office space listed, 900 SF in all, largest 900 SF (about 1 to 2 exam rooms). It's vacant now. Asking $3.00/SF/mo on a NNN basis.
Listed spaces at 181 E 18th St
| Space | Use | Term |
|---|---|---|
| Suite D · 900 SF · available now | Office/Medical | Negotiable |
Sizes are rentable square feet. Listed with the building as of September 2026. Availability, asking terms and tenant improvement allowance are confirmed with the landlord before any tour.
- Medical space listed
- 900 SF
- Largest space
- 900 SF
- Fits
- ~1–2 rooms
- Vacant now
- 1 of 1
Asking rent and building facts
Asking rent
- NNN$3.00/SF/mobuilding asking range
Costa Mesa for comparison
- NNN$2.25–$3.17/SF/mo4 buildings
- Full Service$2.50–$2.95/SF/mo2 buildings
- Modified Gross$2.65–$2.70/SF/mo2 buildings
Lowest to highest published building asking rents in Costa Mesa, grouped by lease structure. Full Service includes operating costs and utilities; NNN adds taxes, insurance and common-area costs; Modified Gross splits them.
Building
- Building classClass C
- Built1959
- Stories1
- Rentable building area3,682 SF
- Parking ratio6.79 per 1,000 SF
- Leased76%
Hospitals near 181 E 18th St
- College Hospital Costa Mesa, Costa Mesa1.0 mi
- Hoag Memorial Hospital Presbyterian, Newport Beach1.2 mi
- Memorialcare Orange Coast Medical Center, Fountain Valley4.9 mi
Straight-line miles from the Census Bureau geocode of each hospital's address on the CMS hospital list.
Other buildings with medical space in Costa Mesa
- 204 E 17th St 4,437 SF · $2.85/SF/mo
- 1640 Newport Blvd Pacific Medical Plaza 2,735 SF
- 1901 Newport Blvd Newport Boulevard 4,552 SF
- 2077 Harbor Blvd 1,000 SF
See every building in the Costa Mesa trade area guide.
Questions about 181 E 18th St
What medical office space is available at 181 E 18th St?
181 E 18th St in Costa Mesa lists 1 medical office space, 900 SF in all, as of September 2026: Suite D · 900 SF · available now. Sizes are rentable square feet.
What is the asking rent at 181 E 18th St?
$3.00/SF/mo, on a NNN basis, as published for this Class C building, built in 1959. Taxes, insurance and common-area costs come on top of an NNN rate.
How many exam rooms fit in the largest space at 181 E 18th St?
About 1 to 2. The largest listed space is 900 SF, and planning runs 385 to 600 rentable SF per exam room (350 to 500 usable, plus a 10% to 20% load factor, the share of common areas billed to each tenant). Plumbing, ADA restrooms and HVAC decide whether that count works in a building that wasn't built for exam rooms. This one dates to 1959.
Which hospitals are near 181 E 18th St?
College Hospital Costa Mesa is the closest, 1 mile away. Also nearby: Hoag Memorial Hospital Presbyterian, Newport Beach, 1.2 miles; Memorialcare Orange Coast Medical Center, Fountain Valley, 4.9 miles. Distances are straight-line miles to each hospital's address on the CMS hospital list.
Is the availability at 181 E 18th St current?
It's from the September 2026 survey of medical office availability. Availability, rent and tenant improvement allowance are confirmed with the landlord before any tour.
Ask about 181 E 18th St
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Your advisor
Jamal Brown
Real Estate Broker · CA DRE #01780052
Jamal has spent more than 23 years in commercial real estate and has negotiated and audited more than 1,000 leases. He represents medical practices as tenants and buyers, never landlords, across Los Angeles, Orange County, San Diego and the Inland Empire. Every request sent through this site gets a reply within one business day.
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