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Highlights

  • Waterside Center consists of two Class A multi-tenant office buildings constructed in 2005 and 2007.
  • Ontario International Airport is located within close proximity to the campus.
  • Ample on-site parking is available with a 4 per 1,000 parking ratio.
  • The property offers visibility from Interstate 10 and convenient access to Interstate 15.
  • Professional management supports the operation and maintenance of the property.
  • Nearby retail, dining, and service amenities provide convenience for employees and visitors.

All Available Spaces(2)

Display Rental Rate as

  • Space
  • Size
  • Term
  • Rental Rate
  • Space Use
  • Build-Out
  • Available
  • 2nd Floor, Ste 200
  • 7,224 SF
  • Negotiable
  • $47.63 CAD/SF/YR $3.97 CAD/SF/MO $344,049 CAD/YR $28,671 CAD/MO
  • Office
  • Full Build-Out
  • 60 Days

Features a reception area, six private offices, conference room, breakroom, and bullpen areas with workstations. The existing improvements support immediate office occupancy.

  • Rate includes utilities, building services and property expenses
  • Mostly Open Floor Plan Layout
  • Space is in Excellent Condition
  • Natural Light
  • Open-Plan
  • Wheelchair Accessible
  • Existing workstation bullpens
  • Open workspace with collaborative layout
  • Fully Built-Out as Standard Office
  • 6 Private Offices
  • Central Air and Heating
  • After Hours HVAC Available
  • Smoke Detector
  • Six private offices
  • Conference room included
  • Breakroom for staff convenience onsite
  • 2nd Floor, Ste 260
  • 3,823-11,047 SF
  • Negotiable
  • $47.63 CAD/SF/YR $3.97 CAD/SF/MO $526,123 CAD/YR $43,844 CAD/MO
  • Office
  • Full Build-Out
  • Now

Includes a reception area, four private offices, conference room, IT/storage room, and bullpen areas with workstations. The layout provides a mix of private offices and open workspace.

  • Rate includes utilities, building services and property expenses
  • Mostly Open Floor Plan Layout
  • 1 Conference Room
  • Reception Area
  • Elevator Access
  • After Hours HVAC Available
  • Smoke Detector
  • Four private offices
  • Open workstation bullpen
  • Fully Built-Out as Standard Office
  • 4 Private Offices
  • Central Air and Heating
  • Wi-Fi Connectivity
  • Natural Light
  • Open-Plan
  • Wheelchair Accessible
  • IT and storage room
Space Size Term Rental Rate Space Use Build-Out Available
2nd Floor, Ste 200 7,224 SF Negotiable $47.63 CAD/SF/YR $3.97 CAD/SF/MO $344,049 CAD/YR $28,671 CAD/MO Office Full Build-Out 60 Days
2nd Floor, Ste 260 3,823-11,047 SF Negotiable $47.63 CAD/SF/YR $3.97 CAD/SF/MO $526,123 CAD/YR $43,844 CAD/MO Office Full Build-Out Now

2nd Floor, Ste 200

Size
7,224 SF
Term
Negotiable
Rental Rate
$47.63 CAD/SF/YR $3.97 CAD/SF/MO $344,049 CAD/YR $28,671 CAD/MO
Space Use
Office
Build-Out
Full Build-Out
Available
60 Days

2nd Floor, Ste 260

Size
3,823-11,047 SF
Term
Negotiable
Rental Rate
$47.63 CAD/SF/YR $3.97 CAD/SF/MO $526,123 CAD/YR $43,844 CAD/MO
Space Use
Office
Build-Out
Full Build-Out
Available
Now

2nd Floor, Ste 200

Size 7,224 SF
Term Negotiable
Rental Rate $47.63 CAD/SF/YR
Space Use Office
Build-Out Full Build-Out
Available 60 Days

Features a reception area, six private offices, conference room, breakroom, and bullpen areas with workstations. The existing improvements support immediate office occupancy.

  • Rate includes utilities, building services and property expenses
  • Fully Built-Out as Standard Office
  • Mostly Open Floor Plan Layout
  • 6 Private Offices
  • Space is in Excellent Condition
  • Central Air and Heating
  • Natural Light
  • After Hours HVAC Available
  • Open-Plan
  • Smoke Detector
  • Wheelchair Accessible
  • Six private offices
  • Existing workstation bullpens
  • Conference room included
  • Open workspace with collaborative layout
  • Breakroom for staff convenience onsite

2nd Floor, Ste 260

Size 3,823-11,047 SF
Term Negotiable
Rental Rate $47.63 CAD/SF/YR
Space Use Office
Build-Out Full Build-Out
Available Now

Includes a reception area, four private offices, conference room, IT/storage room, and bullpen areas with workstations. The layout provides a mix of private offices and open workspace.

  • Rate includes utilities, building services and property expenses
  • Fully Built-Out as Standard Office
  • Mostly Open Floor Plan Layout
  • 4 Private Offices
  • 1 Conference Room
  • Central Air and Heating
  • Reception Area
  • Wi-Fi Connectivity
  • Elevator Access
  • Natural Light
  • After Hours HVAC Available
  • Open-Plan
  • Smoke Detector
  • Wheelchair Accessible
  • Four private offices
  • IT and storage room
  • Open workstation bullpen

Property Overview

Waterside Center is a Class A office campus comprising two multi-tenant office buildings located at 3110 and 3200 E. Guasti Road in Ontario, California. Constructed in 2005 and 2007, the property offers a professionally managed business environment designed to support a diverse range of office users. The campus encompasses approximately 159,270 square feet and benefits from a highly accessible location west of Interstate 15 with visibility from Interstate 10. Waterside Center is positioned near Ontario International Airport, Ontario Mills, and a wide selection of retail, dining, and service amenities, providing convenience for employees and visitors alike. The property features an on-site parking ratio of 4 spaces per 1,000 square feet and is maintained under professional management. Its established corporate setting, modern construction, and proximity to major transportation corridors make Waterside Center a well-located office destination within the Inland Empire business market.

  • Conferencing Facility
  • Energy Star Labeled
  • Storage Space
  • Outdoor Seating

Property Facts

Building Type
Office
Year Built
2007
LoopNet Rating
4 Star
Building Height
3 Stories
Building Size
67,735 SF
Building Class
A
Typical Floor Size
22,578 SF
Unfinished Ceiling Height
11’
Parking
271 Surface Parking Spaces
Covered Parking

Sustainability

Energy Star Certified
92
ENERGY STAR certified buildings save energy and help protect the environment.

Sustainability

ENERGY STAR® Energy Star is a program run by the U.S. Environmental Protection Agency (EPA) and U.S. Department of Energy (DOE) that promotes energy efficiency and provides simple, credible, and unbiased information that consumers and businesses rely on to make well-informed decisions. Thousands of industrial, commercial, utility, state, and local organizations partner with the EPA to deliver cost-saving energy efficiency solutions that protect the climate while improving air quality and protecting public health. The Energy Star score compares a building’s energy performance to similar buildings nationwide and accounts for differences in operating conditions, regional weather data, and other important considerations. Certification is given on an annual basis, so a building must maintain its high performance to be certified year to year. To be eligible for Energy Star certification, a building must earn a score of 75 or higher on EPA’s 1 – 100 scale, indicating that it performs better than at least 75 percent of similar buildings nationwide. This 1 – 100 Energy Star score is based on the actual, measured energy use of a building and is calculated within EPA’s Energy Star Portfolio Manager tool.

Fairly walkable
40/100
Exceptionally drivable
100/100
Limited public transit
30/100
Fairly bikeable
40/100
  • Listing ID: 9152636

  • Date on Market: 2026-04-10

  • Last Updated:

  • Address: 3200 E Guasti Rd, Ontario, CA 91761

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