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Ontario is a Southern California city region abundant in palm trees, heritage sites, and suburban charm. The name brings its Canadian namesake to mind, but the similarities end there. Ontario is a region famous for its lush green environment and steadfast improvement efforts: the city is an ideal residential spot for potential homeowners looking to start life anew. 

For clients looking to move to Ontario, this list compiles the best custom home builders in the area. The builders were selected based on a number of criteria, including work quality, company history, project portfolio, relevance, accreditations, certifications, client testimonials, awards received, and press coverage. 


Cornell Custom Homes

5670 Schaefer Ave Ste H, Chino, CA 91710

Cornell Custom Home’s expertise lies in high-end residential and commercial construction. Third-generation builder Toby Cornell serves as the company’s president, taking over from his father and former firm patriarch Thomas Cornell. Toby takes pride in his family’s legacy and has established his mark in the industry by using all the skills he has learned from both heritage and experience. For over two decades, the company has fortified bonds with long-term clients, which includes high profile personalities, celebrity athletes, and business moguls. The firm operates in the Southern California region and has completed projects worth 500k to 15M.

The team delivers quality output by providing exceptional work from the initial phase through the final stages of the construction, ensuring satisfied clients get their money’s worth. The home featured is a Mediterranean estate completed by Cornell Custom Homes. Its crisp construction is one of the reasons why reviews for the firm has been so positive. Former clientele praised the firm’s ability to build and craft exquisite luxury homes as well as the crew’s skill and professionalism.


Deserada Homes

1175 Baker Street Suite E1934, Costa Mesa, CA 92626

This Costa Mesa-based construction and design firm is focused on quality, professionalism, and service. Desedrada places a strong emphasis on customer service and consistently delivers top-quality results, not only when it comes to the building but also when it comes to collaborating with the client. Deserada Homes is a member of the National Association of Home Builders (NAHB). The company is also an Energy Star Partner and implements green building methods in their work. The firm primarily provides residential and light commercial construction work. 

Deserada Homes president and owner Jim Dillard worked his way from the ground up; he was a former finishing and framing carpenter. His field experience gave him a firsthand understanding of the business and a lot of first-hand insight into the ins and outs of the construction work process. Today, the firm he built has completed over 900 custom homes in California, each one personalized to reflect the homeowner’s lifestyle and needs.


Mike Davis Custom Homes

1020 Manhattan Beach Blvd Ste 106, Manhattan Beach, CA 90266

Gorgeous structure and stunning design are guaranteed with Mike Davis at the helm of a custom home project. Davis, along with his team of craftsmen and subcontractors, has completed elaborate homes for their clients along Manhattan Beach. The ease of collaboration opens a line of communication between builders and clients: the construction process flows.

The firm’s catalog of custom homes includes a variety of styles from contemporary California mansions to traditional estates. Pictured is a luxury estate constructed by Davis. Brick and metal are the major components of the home, a synthesis of materials crafted by Davis’s keen eye for detail and design. The rustic browns and golden hues of the property pop against the lush green backdrop—a simple yet grandiose aesthetic. 


Nicolaisen and Sons Construction Company, Inc.

1175 Baker Street Suite E1934, Costa Mesa, CA 92626

Founded on the cornerstones of quality, affordability, and value, Nicolaisen and Sons Construction Company, Inc. is a firm committed to delivering top-notch homes to California clients. The family-owned enterprise is led by Mark Nicolaisen, an industry veteran and the company’s owner and founder. Nicolaisen and his craftspeople have more than 40 years of collective experience in the field. With this lengthy experience comes both grit and expertise when it comes to construction and design, not only in terms of fieldwork but in project management as well. This precise grasp on construction work makes it a preferred builder within its area of service, and you can tell that is the case from the glowing reviews from former customers. The positive testimonials prove vital to the business’ operations as it helps expand its connections through word of mouth.

Services offered by the firm include commercial and residential work, additions, remodels, tenant improvements, and more. Featured is a 5,000 square feet custom two-story home completed by Nicolaisen and Sons. A neutral palette of deep and muted earth tones surround its exteriors, displaying a straightforward design. The structure’s traditional style exudes a majestic aesthetic fit for the sunny suburban region. The firm operates in Riverside, Los Angeles, San Bernardino, and Orange Counties.


TM Grady Builders, Inc.

1294- D South Coast Highway, Laguna Beach, CA 92651

Remarkable estates and excellent design are the main hallmarks of TM Grady Builders, Inc., a Laguna Beach-based firm specializing in building custom homes. Tim Grady has presided over the enterprise for more than three decades, leading it to repeated success with his keen eye for detail and structure. This longevity in the field has sharpened the firm’s sense of style and its ability to fully design and build every client’s vision as accurately as possible. Grady’s crew is known for building exquisite luxury homes strictly within the set budget and schedule, as well as for delivering its undivided attention throughout the entire process from blueprints to construction to the finishing touches.

Memberships in the NAHB, Associated General Contractors of America (AGC), and the Building Industry Association (BIA) Baldy Chapter give the firm legitimacy in the California contractor arena. As an NAHB Certified Green Professional, the company places energy-efficient and environmentally-friendly methods high on its list of priorities. The company’s consciousness when it comes to sustainable building guarantees minimal environmental impact in every construction.

Work such as the Nantucket Charmer project pictured exemplifies TM Grady’s style versatility as well as beauty in simplicity. The Hampton’s shingle is a 7,000 square feet two-story custom home with exteriors made of brick and wood. Tuscan pillars on its façade act both as functional and design pieces, giving the structure a post-modern aesthetic flair. The Newport Beach home features lavish interiors with grandiose design from the dining room’s stunning layout to the bathroom’s elegant tile make-up.


How can I find a home builder near me?

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