Ariza Architect & Associates of Ontario

Ariza Architect & Associates of Ontario is a full-service architectural firm based in Ontario, California, serving clients across the Inland Empire, Riverside, and San Bernardino Counties. The firm specializes in residential, commercial, retail, industrial, and hospitality design, with expertise in tenant improvements, new construction, and site evaluations. They provide comprehensive architectural services including zoning consultations, code-compliant design, and construction documentation, helping clients achieve "Ready for Permit" status efficiently. With a 4.60 rating from clients, the firm is recognized for its attention to detail, responsiveness, and ability to secure plan approvals on the first submission. Their clients include homeowners, business owners, and property developers seeking high-quality, functional designs.

Ariza Architect & Associates brings over 20 years of experience to every project, emphasizing collaboration, clear communication, and client-centered solutions. The team, led by owner Ausencio Ariza, a graduate of Woodbury University School of Architecture and a recipient of the American Institute of Architects’ Distinguished Building citation, includes licensed professionals and NCARB candidates. The firm holds professional liability and errors and omissions insurance, ensuring reliability and accountability. Clients consistently praise the team for being accessible, detail-oriented, and capable of delivering projects on time and within budget. Their services extend from initial site evaluation to final construction documents, with a focus on efficiency, compliance, and design excellence.

Located at 211 W Emporia St, Suite 109, the firm sits just a short walk from the City of Ontario government office, less than a quarter-mile from the Downtown Station Ontario Post Office, and within easy reach of West Holt Boulevard and Euclid Avenue. Nearby landmarks include the Ontario Museum of History & Art and Nugent’s Park, both within a two-minute walk.

The firm is consistently recognized as one of Ontario’s top residential architects, earning the “Best Residential Architect” award from Build Magazine and being named Google’s top-rated residential architect in the city for three consecutive years based on client satisfaction. Their proven track record of first-time plan approval, strong client relationships, and consistent delivery of high-quality designs underscores their standing as a trusted leader in the region.

Ariza Architect & Associates of Ontario stands out for turning client visions into functional, code-compliant realities, delivering precision, professionalism, and lasting value in every project.