Medical office space · data as of September 2026
11100 Warner Ave, Fountain Valley Fountain Valley Medical Center - West
7 medical office spaces listed, 9,178 SF in all, largest 2,076 SF (about 3 to 5 exam rooms). Six of them are vacant now. The landlord quotes rent on request.
Listed spaces at 11100 Warner Ave
| Space | Use | Term |
|---|---|---|
| Suite 152 · 1,089 SF · available now | Medical | Negotiable |
| Suite 150A · 640 SF · available Oct 2026 | Medical | Negotiable |
| Suite 250 · 1,872 SF · available now | Medical | Negotiable |
| Suite 260 · 1,519 SF · available now | Medical | Negotiable |
| Suite 256 · 864 SF · available now | Medical | Negotiable |
| Suite 368 · 2,076 SF · available now | Medical | 1 - 5 Years |
| Suite 356 · 1,118 SF · available now | Medical | 1 - 5 Years |
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
- 9,178 SF
- Largest space
- 2,076 SF
- Fits
- ~3–5 rooms
- Vacant now
- 6 of 7
Asking rent and building facts
Asking rent
The landlord withholds pricing for this building and quotes on request. In Fountain Valley, 5 of 7 buildings do the same.
Fountain Valley for comparison
- Full Service$3.60/SF/mo1 building
- Modified Gross$1.60/SF/mo1 building
Lowest to highest published building asking rents in Fountain Valley, 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
- Built1975
- Stories3
- Rentable building area44,716 SF
- Parking ratio5.88 per 1,000 SF
- Leased81%
Hospitals near 11100 Warner Ave
- UCI Health - Fountain Valley, Fountain Valley0.2 mi
- Memorialcare Orange Coast Medical Center, Fountain Valley1.5 mi
- Coastal Communities Hospital, Santa Ana2.9 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 Fountain Valley
- 11100 Warner Ave Fountain Valley Medical Center - East 11,969 SF · $3.60/SF/mo
- 11160 Warner Ave Fountain Valley Medical Center - Building III 14,793 SF
- 11180 Warner Ave Fountain Valley #4 7,385 SF
- 11190 Warner Ave Fountain Valley Regional Hospital 2,059 SF
See every building in the Fountain Valley trade area guide.
Questions about 11100 Warner Ave
What medical office space is available at 11100 Warner Ave?
11100 Warner Ave in Fountain Valley lists 7 medical office spaces, 9,178 SF in all, as of September 2026: Suite 152 · 1,089 SF · available now, Suite 150A · 640 SF · available Oct 2026, Suite 250 · 1,872 SF · available now, Suite 260 · 1,519 SF · available now, Suite 256 · 864 SF · available now, Suite 368 · 2,076 SF · available now. Sizes are rentable square feet. Of those, six are vacant now.
What is the asking rent at 11100 Warner Ave?
Not published. The landlord quotes on request, once the size and use are known.
How many exam rooms fit in the largest space at 11100 Warner Ave?
About 3 to 5. The largest listed space is 2,076 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 1975.
Which hospitals are near 11100 Warner Ave?
UCI Health - Fountain Valley is the closest, 0.2 mile away. Also nearby: Memorialcare Orange Coast Medical Center, Fountain Valley, 1.5 miles; Coastal Communities Hospital, Santa Ana, 2.9 miles. Distances are straight-line miles to each hospital's address on the CMS hospital list.
Is the availability at 11100 Warner Ave 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 11100 Warner Ave
Send your size and timing. Live availability and terms for this building come back within one business day.
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We typically reply within one business day. Prefer to talk now? Call (619) 796-3390.
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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