About Diamond

A second generation construction and development company, Diamond specializes in building custom homes and estates in the Bay Area. As developers, we create vision, as contractors we execute details, and as a family, we grow with the community.

Founder, Keith Stone and Partner, Jeff Stone
New home construction

To date, Diamond Construction has completed more than 500 residential and commercial projects producing some of the most unique and extraordinary buildings.

Diamond Construction Inc. has a General Contractors License with the State of California, is bonded and fully insured with General Liability and Workers Compensation Insurance.

Team of creators

Our team of experts consult with clients in every step of the building process.

We are committed, starting from the design review, preliminary budgeting, project planning, resource and logistics planning until the first day of construction. With more than 34 years under their belt and growing, Keith and his team at Diamond Construction continue to serve new and returning clients based on their founding principles of integrity, expertise, and teamwork.

Keith Stone

Founder and Partner

Jeff Stone, J.D.


Toni Cowen

Office Manager

Jim Peirce

Project Director

Oscar Hernandez

Lead Superindendent

Travis Baker

Operations Director

Fiachra McCarron

Lucas Ranch Head Superintendent


Office Dog

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