Medical office space · data as of September 2026
18800 Main St, Huntington Beach
2 medical office spaces listed, 3,625 SF in all, largest 1,975 SF (about 3 to 5 exam rooms). Two of them are vacant now. Asking $4.00/SF/mo on a Modified Gross basis.
Listed spaces at 18800 Main St
| Space | Use | Term |
|---|---|---|
| Suite 209 · 1,975 SF · available now | Medical | Negotiable |
| Suite 204 · 1,650 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
- 3,625 SF
- Largest space
- 1,975 SF
- Fits
- ~3–5 rooms
- Vacant now
- 2 of 2
Asking rent and building facts
Asking rent
- Modified Gross$4.00/SF/mobuilding asking range
Huntington Beach for comparison
- Modified Gross$1.50–$4.00/SF/mo6 buildings
- NNN$1.90–$3.00/SF/mo5 buildings
- Full Service$3.00/SF/mo1 building
Lowest to highest published building asking rents in Huntington Beach, 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 B
- Built1978
- Stories3
- Rentable building area38,449 SF
- Parking ratio5.20 per 1,000 SF
- Leased91%
Hospitals near 18800 Main St
- Huntington Beach Hospital, Huntington Beach1.1 mi
- Memorialcare Orange Coast Medical Center, Fountain Valley2.4 mi
- UCI Health - Fountain Valley, Fountain Valley3.7 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 Huntington Beach
- 18800 Delaware St Pacifica Tower 18,727 SF · $3.00/SF/mo
- 18682 Beach Blvd Bldg B 1,410 SF · $4.00/SF/mo
- 18632 Beach Blvd Bldg A 3,243 SF · $2.35–$3.85/SF/mo
- 18141 Beach Blvd 1,719 SF · $1.50/SF/mo
See every building in the Huntington Beach trade area guide.
Questions about 18800 Main St
What medical office space is available at 18800 Main St?
18800 Main St in Huntington Beach lists 2 medical office spaces, 3,625 SF in all, as of September 2026: Suite 209 · 1,975 SF · available now, Suite 204 · 1,650 SF · available now. Sizes are rentable square feet. Of those, two are vacant now.
What is the asking rent at 18800 Main St?
$4.00/SF/mo, on a Modified Gross basis, as published for this Class B building, built in 1978.
How many exam rooms fit in the largest space at 18800 Main St?
About 3 to 5. The largest listed space is 1,975 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 1978.
Which hospitals are near 18800 Main St?
Huntington Beach Hospital is the closest, 1.1 miles away. Also nearby: Memorialcare Orange Coast Medical Center, Fountain Valley, 2.4 miles; UCI Health - Fountain Valley, Fountain Valley, 3.7 miles. Distances are straight-line miles to each hospital's address on the CMS hospital list.
Is the availability at 18800 Main 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 18800 Main 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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