Waterside Center I

3200 East Guasti Road, Ontario, CA 91761

Property Information

  • For Lease Contact for pricing
  • Property Type Office - General Office
  • Property Size 72,589 SF
  • Lot Size 0.67 Acre
  • Parking Spaces Avail. 202
  • Parking Ratio 2.79 / 1,000 SF
  • Property Tenancy Multi-Tenant
  • Building Class A
  • Year Built 2007
  • Date Updated Apr 20, 2026

Description

Waterside Center I is a 72,589-square-foot Class A office building situated on a 0.67-acre lot at 3200 East Guasti Road in Ontario. Built in 2007, the property features 202 parking spaces, delivering a parking ratio of 2.79 spaces per 1,000 square feet. The building's modern construction and ample parking make it a convenient option for businesses seeking high-quality office space in a growing commercial hub.

The surrounding area offers various amenities and easy access to nearby points of interest. Dining options are abundant, with Panda Inn and TGI Fridays both approximately 0.2 miles away, while coffee spots like Dunkin' and Einstein Bros. Bagels are reachable within 0.5 miles. Hospitality is well-covered, with Fairfield Inn Ontario situated about 0.1 miles from the property, alongside several other hotels within a half-mile radius. Transportation hubs such as East Ontario Station are within approximately 1.7 miles, and additional parking options, like Lot 5, are just 0.2 miles away.

2 Spaces Available

#200

Space Type

General Office

Lease Rate

Contact for pricing

Total Space

7,224 SF

Floor

2

Divisible Space

7,224 - 7,224 SF

Available Date

60 Days

Lease Type

Full Service

Renewal Option

Yes

Sublease

No

Reception area, 6 offices, conference room, breakroom and bullpen with workstations

#260

Space Type

General Office

Lease Rate

Contact for pricing

Total Space

3,823 SF

Floor

2

Divisible Space

3,823 - 3,823 SF

Available Date

Immediate

Lease Type

Full Service

Renewal Option

Yes

Sublease

No

Reception area, 4 offices, conference room, IT/storage

room and bullpens with workstations

 

Contacts

Lynn Yangchana

MGR Real Estate

Michael G. Rademaker

MGR Real Estate

Location

Contact Waterside Center I
This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.