Medical office space · data as of September 2026
20657 Golden Springs Dr, Diamond Bar Golden Springs Plaza
3 medical office spaces listed, 917 SF in all, largest 337 SF. Three of them are vacant now. The landlord quotes rent on request.
Listed spaces at 20657 Golden Springs Dr
| Space | Use | Term |
|---|---|---|
| Suite 209 · 337 SF · available now | Office/Medical | 1 - 3 Years |
| Suite 209 · 328 SF · available now | Office/Medical | 1 - 5 Years |
| Suite 209 · 252 SF · available now | Office/Medical | 1 Year |
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
- 917 SF
- Largest space
- 337 SF
- Fits
- Under 1 room
- Vacant now
- 3 of 3
Asking rent and building facts
Asking rent
The landlord withholds pricing for this building and quotes on request. In Eastern San Gabriel Valley, 10 of 49 buildings do the same.
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
- Built2010
- Stories2
- Rentable building area55,167 SF
- Parking ratio4.73 per 1,000 SF
- Leased98%
Hospitals near 20657 Golden Springs Dr
- Emanate Health Inter-Community Hospital, Covina6.7 mi
- San Dimas Community Hospital, San Dimas7.1 mi
- Pomona Valley Hospital Medical Center, Pomona8.0 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
- 1540 Bridgegate Dr Gateway Corporate Center 28,920 SF · $2.50/SF/mo
- 2707 E Valley Blvd Nogales Medical Plaza 1,252 SF · $2.84/SF/mo
- 19115-19117 Colima Rd 5,299 SF · $2.00–$2.75/SF/mo
See every building in the Eastern San Gabriel Valley trade area guide.
Questions about 20657 Golden Springs Dr
What medical office space is available at 20657 Golden Springs Dr?
20657 Golden Springs Dr in Diamond Bar lists 3 medical office spaces, 917 SF in all, as of September 2026: Suite 209 · 337 SF · available now, Suite 209 · 328 SF · available now, Suite 209 · 252 SF · available now. Sizes are rentable square feet. Of those, three are vacant now.
What is the asking rent at 20657 Golden Springs Dr?
Not published. The landlord quotes on request, once the size and use are known.
How many exam rooms fit in the largest space at 20657 Golden Springs Dr?
Under one. The largest listed space is 337 SF, below the 385 rentable SF at the low end of the planning range for a single exam room.
Which hospitals are near 20657 Golden Springs Dr?
Emanate Health Inter-Community Hospital is the closest, 6.7 miles away. Also nearby: San Dimas Community Hospital, San Dimas, 7.1 miles; Pomona Valley Hospital Medical Center, Pomona, 8.0 miles. Distances are straight-line miles to each hospital's address on the CMS hospital list.
Is the availability at 20657 Golden Springs 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 20657 Golden Springs Dr
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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