Medical office space · data as of September 2026
1023-1027 S Mt Vernon Ave, Colton Mt Vernon Business Center
2 medical office spaces listed, 4,559 SF in all, largest 3,270 SF (about 5 to 8 exam rooms). Two of them are vacant now. Asking $1.50–$1.85/SF/mo on a Gross + Electric basis.
Listed spaces at 1023-1027 S Mt Vernon Ave
| Space | Use | Term |
|---|---|---|
| Suite 1023 A · 3,270 SF · available now | Office/Medical | Negotiable |
| Suite 1023-D · 1,289 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
- 4,559 SF
- Largest space
- 3,270 SF
- Fits
- ~5–8 rooms
- Vacant now
- 2 of 2
Asking rent and building facts
Asking rent
- Gross + Electric$1.50–$1.85/SF/mobuilding asking range
San Bernardino for comparison
- Modified Gross$1.45–$2.90/SF/mo10 buildings
- NNN$1.15–$2.25/SF/mo4 buildings
- Full Service$1.55–$2.00/SF/mo2 buildings
- Gross + Electric$1.50–$1.85/SF/mo1 building
- Gross + Utilities$1.53/SF/mo1 building
- Gross + Utilities & Janitorial$2.50/SF/mo1 building
- Lease type not stated$1.60–$1.68/SF/mo1 building
Lowest to highest published building asking rents in San Bernardino, 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
- Built1982
- Stories1
- Rentable building area29,966 SF
- Parking ratio4.07 per 1,000 SF
- Leased46%
Hospitals near 1023-1027 S Mt Vernon Ave
- Loma Linda University Medical Center, Loma Linda2.8 mi
- Loma Linda University Children's Hospital, Loma Linda2.8 mi
- Arrowhead Regional Medical Center, Colton2.9 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 San Bernardino
- 1003 E Cooley Dr Mount Vernon Plaza 680 SF · $1.55/SF/mo
- 1430 E Cooley Dr Cooley Executive II 3,366 SF · $1.45–$2.41/SF/mo
- 1550 E Washington St 5,000 SF · $2.90/SF/mo
- 22545 Barton Rd 1,300 SF · $1.53/SF/mo
See every building in the San Bernardino trade area guide.
Questions about 1023-1027 S Mt Vernon Ave
What medical office space is available at 1023-1027 S Mt Vernon Ave?
1023-1027 S Mt Vernon Ave in Colton lists 2 medical office spaces, 4,559 SF in all, as of September 2026: Suite 1023 A · 3,270 SF · available now, Suite 1023-D · 1,289 SF · available now. Sizes are rentable square feet. Of those, two are vacant now.
What is the asking rent at 1023-1027 S Mt Vernon Ave?
$1.50–$1.85/SF/mo, on a Gross + Electric basis, as published for this Class B building, built in 1982.
How many exam rooms fit in the largest space at 1023-1027 S Mt Vernon Ave?
About 5 to 8. The largest listed space is 3,270 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 1982.
Which hospitals are near 1023-1027 S Mt Vernon Ave?
Loma Linda University Medical Center is the closest, 2.8 miles away. Also nearby: Loma Linda University Children's Hospital, Loma Linda, 2.8 miles; Arrowhead Regional Medical Center, Colton, 2.9 miles. Distances are straight-line miles to each hospital's address on the CMS hospital list.
Is the availability at 1023-1027 S Mt Vernon 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 1023-1027 S Mt Vernon Ave
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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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