746 N Mountain Excellent opportunity to sublease a freestanding ±1, 740 SF commercial building located at 746 N Mountain Ave in Ontario, California. Situated on a spacious ±15, 000 SF lot, the property offers abundant on-site parking and flexible space suitable for a variety of business uses. The interior is currently built out as professional office space, featuring multiple private offices, open work areas, and support space. Previously operated as a restaurant, the property may offer residual infrastructure that could benefit food or service-oriented users (subject to verification). With strong frontage along Mountain Avenue, the building provides great visibility, signage potential, and convenient access for both customers and employees. Its central location offers quick connectivity to the 10 Freeway and surrounding retail and service amenities. Ideal for office, medical, retail, or specialty users seeking a standalone presence with yard/parking flexibility. Available for sublease – flexible terms. Contact for pricing and details.