Medical office space · data as of September 2026
1540 Bridgegate Dr, Diamond Bar Gateway Corporate Center
2 medical office spaces listed, 28,920 SF in all, largest 25,920 SF (about 43 to 67 exam rooms). Two of them are vacant now. Asking $2.50/SF/mo on a NNN basis.
Listed spaces at 1540 Bridgegate Dr
| Space | Use | Term |
|---|---|---|
| Suite 100 · 3,000 SF · available now | Office/Medical | Negotiable |
| Suite 200 · 25,920 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
- 28,920 SF
- Largest space
- 25,920 SF
- Fits
- ~43–67 rooms
- Vacant now
- 2 of 2
Asking rent and building facts
Asking rent
- NNN$2.50/SF/mobuilding asking range
Eastern San Gabriel Valley for comparison
- NNN$1.28–$3.57/SF/mo16 buildings
- Modified Gross$1.50–$2.84/SF/mo15 buildings
- Full Service$1.15–$2.29/SF/mo6 buildings
- Net$1.75/SF/mo1 building
- Lease type not stated$2.10/SF/mo1 building
Lowest to highest published building asking rents in Eastern San Gabriel 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 B
- Built1987, renovated 2007
- Stories2
- Rentable building area51,840 SF
- Parking ratio5.00 per 1,000 SF
- Leased0%
Hospitals near 1540 Bridgegate Dr
- San Dimas Community Hospital, San Dimas7.3 mi
- Emanate Health Inter-Community Hospital, Covina7.3 mi
- Pomona Valley Hospital Medical Center, Pomona7.6 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 Eastern San Gabriel Valley
- 888 S Brea Canyon Rd Diamond Bar Business Center 4,128 SF · $2.80/SF/mo
- 20657 Golden Springs Dr Golden Springs Plaza 917 SF
- 1117-1227 S Grand Ave 2,400 SF
- 23525 Golden Springs Dr 2,380 SF · $2.10/SF/mo
See every building in the Eastern San Gabriel Valley trade area guide.
Questions about 1540 Bridgegate Dr
What medical office space is available at 1540 Bridgegate Dr?
1540 Bridgegate Dr in Diamond Bar lists 2 medical office spaces, 28,920 SF in all, as of September 2026: Suite 100 · 3,000 SF · available now, Suite 200 · 25,920 SF · available now. Sizes are rentable square feet. Of those, two are vacant now.
What is the asking rent at 1540 Bridgegate Dr?
$2.50/SF/mo, on a NNN basis, as published for this Class B building, built in 1987 (renovated 2007). Taxes, insurance and common-area costs come on top of an NNN rate. Only four of the other Class B NNN buildings in Eastern San Gabriel Valley were built from 1970 to 1989, too few to compare with this one.
How many exam rooms fit in the largest space at 1540 Bridgegate Dr?
About 43 to 67. The largest listed space is 25,920 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 1987, renovated 2007.
Which hospitals are near 1540 Bridgegate Dr?
San Dimas Community Hospital is the closest, 7.3 miles away. Also nearby: Emanate Health Inter-Community Hospital, Covina, 7.3 miles; Pomona Valley Hospital Medical Center, Pomona, 7.6 miles. Distances are straight-line miles to each hospital's address on the CMS hospital list.
Is the availability at 1540 Bridgegate Dr 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 1540 Bridgegate Dr
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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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