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    Ontario, CA Office Units for Lease

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    Rancho Cucamonga, CA Upland, CA Eastvale, CA Fontana, CA Jurupa Valley, CA Montclair, CA Chino, CA Claremont, CA
    91 properties
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    Flex Space with Roll-Up Door
    Updated: Jun 5
    Flex Space with Roll-Up Door

    1115 S Grove, Ontario, CA 91761

    $3,980/Mo
    Renovated commercial office/warehouse built in 2008 with reception, 5 private offices, and a conference room
    Warehouse area includes high ceilings and a tall roll‑up grade level door for deliveries and distribution
    2 restrooms plus a kitchen with sink, and a separate storage room for inventory and organization
    Direct frontage along Grove Avenue with ample on‑site parking
    Most office furniture stays with the lease, excluding the owner’s personal items
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    Class A Office Suite with Training Rooms
    Updated: Jun 1
    Class A Office Suite with Training Rooms

    3401 Centre Lake Drive, Ontario, CA 91761

    $6,430/Mo
    6‑story Class A office building with Central Air and zoned cooling
    Premiere Ontario Airport submarket with prominent I‑10 freeway visibility and immediate access at Haven Avenue
    Close to I‑15 and the 60 Freeways
    Parking includes 4/1,000 spaces with covered, reserved parking available
    Card key security system and professionally managed, maintained building
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    Class A Six-Story Office Building
    Class A Six-Story Office Building

    3401 Centre Lake Drive, Ontario, CA 91761

    $4,318/Mo

    Suite 248 offers private offices and conference space in a professionally managed, card-key secured office building.

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    Class A Office Sublease Available
    Class A Office Sublease Available

    4200 N Center Ave, Ontario, CA 91764

    $4,500/Mo
    2,295 sqft $23.53 SF/Yr

    Sublease available in premier Ontario Airport location until 2029.

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    Class A Office Suite
    Class A Office Suite

    3401 Centre Lake Drive, Ontario, CA 91761

    $5,788/Mo

    Suite 242 offers a professional layout with multiple offices, storage, breakroom, and an open work area.

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    Furnished Office Suite with Conference Room
    Furnished Office Suite with Conference Room

    3401 Centre Lake Drive, Ontario, CA 91761

    $8,368/Mo

    Move-in ready suite with two private offices, conference room, storage, and open work area inside a Class A office building.

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    Class A Office Suite with Storage
    Class A Office Suite with Storage

    3401 Centre Lake Drive, Ontario, CA 91761

    $4,366/Mo

    Suite 230 offers four private offices, a storage room, and an open work area in a Class A office building.

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    Class A Office Space Available
    Class A Office Space Available

    3257 E Guasti Rd 210, Ontario, CA 91761

    $8,242/Mo
    11,777 sqft $8.40 SF/Yr

    Premium office space in Centrelake Business Park with lake views.

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    Class A Office Suite with Lake Views
    Class A Office Suite with Lake Views

    3237 E Guasti Road, Ontario, CA 91761

    $5,489/Mo

    Suite 105 offers multiple offices, breakroom, and IT/storage inside a Class A building with key-card security.

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    Class A Office Suite with Lake Views
    Class A Office Suite with Lake Views

    3257 E Guasti Road, Ontario, CA 91761

    $8,242/Mo

    Move-in ready office suite in a glass-and-steel campus with central lobby, energy-efficient HVAC, and 24/7 key card access.

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    Class-A Office Space Available
    Class-A Office Space Available

    800 N Hvn 250, Ontario, CA 91764

    $3,795/Mo
    1,549 sqft $29.40 SF/Yr

    Professional office suite in a well-maintained, accessible location.

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    First-Floor Office Suite with Reception
    First-Floor Office Suite with Reception

    3998 Inland Empire Boulevard, Ontario, CA 91764

    $7,950/Mo

    Secure first-floor entry and reception area support client meetings, with private offices and conference rooms for teams.

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    First-Floor Office Suite with Lobby Access
    First-Floor Office Suite with Lobby Access

    3281 E Guasti Road, Ontario, CA 91761

    $8,528/Mo

    First-floor suite with private offices, open workspace, and conference room in a managed professional office building.

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    Class A Office Space Available
    Class A Office Space Available

    3200 E Guasti Rd 260, Ontario, CA 91764

    $10,131/Mo
    3,823 sqft $31.80 SF/Yr

    Move-in ready office space near Ontario Airport and I-10.

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    Furnished Multi-Tenant Office Suite
    Furnished Multi-Tenant Office Suite

    430 N Vineyard Avenue, Ontario, CA 91764

    $4,244/Mo

    Move-in ready office suite with reception, kitchen countertops, and furniture in a 24-hour-access multi-tenant building.

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    Office Suite with Reception Area
    Office Suite with Reception Area

    430 N Vineyard Avenue, Ontario, CA 91764

    $3,811/Mo

    Suite includes three offices plus a supply/IT room and reception area within a multi-tenant, 24-hour-access building.

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    Professional Office Building Near Airport
    Professional Office Building Near Airport

    3281 E Guasti Rd 200, Ontario, CA 91761

    $4,412/Mo
    1,665 sqft $31.80 SF/Yr

    Office suite available in a professionally managed building near I-10.

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    Office Suite with Water View
    Office Suite with Water View

    3281 E Guasti Road, Ontario, CA 91761

    $2,404/Mo

    Suite 210 offers an open workstation layout and a breakroom within a professionally managed office building.

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    Class A Office Suite with Security
    Class A Office Suite with Security

    125-3450 Centre Lake Dr, Ontario, CA 91761

    $9,596/Mo
    176,813 sqft $0.65 SF/Yr

    Suite 125 offers two offices and an open floor plan within a professionally managed Class A building.

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    Five-Story Office Building
    Five-Story Office Building

    430 N Vineyard Avenue, Ontario, CA 91764

    $7,305/Mo

    Multi-tenant office space with card-key security, reserved parking, and full-service gross leasing.

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    Move-In Ready Office Floor
    Move-In Ready Office Floor

    430 N Vineyard Ave 500, Ontario, CA 91764

    $58,570 SF/Yr
    100,525 sqft $490,645,770/Mo

    Full-floor office suite in a five-story, multi-tenant building with secure access and ample parking.

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    Move-In Ready Office Suite
    Move-In Ready Office Suite

    3281 E Guasti Road, Ontario, CA 91761

    $5,281/Mo

    Move-in ready office suite with conference room, private office, open work area, and file room.

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    Class A Office Space Available
    Class A Office Space Available

    200-3200 E Guasti Road, Ontario, CA 91764

    $19,144/Mo
    11,047 sqft $20.80 SF/Yr

    Move-in ready office suites in a professionally managed campus.

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    Class A Office Campus with Parking
    Class A Office Campus with Parking

    3110 E Guasti Road, Ontario, CA 91761

    $2,523/Mo

    Professionally managed office campus offering full-service gross leases, with Suite 235 featuring an open layout and training room.

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    Ontario, CA Office Units Market Trends and Statistics

    Explore Office Units leasing options in Ontario, CA with 91 listings featured on our commercial real estate exchange. The current inventory includes 414,195 square feet of properties with an estimated lease value of $494,478.

    Estimated lease rates for Office Units in Ontario, CA begin at $0.65 SF/Yr, with an average of $23,546 and extend to $435,640.
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