Diaz + Alexander Studio is a full service design and development firm based in Los Angeles, California.


By meeting the many challenges of property development with extensive research in materials, site solutions, and the unique architectural and environmental needs of each project, Diaz + Alexander Studio has built a reputation of exceeding expectations in both design and the real estate market, consistently setting sales records and growing into one of LA’s premier luxury home builders.

Rob Diaz is a native Angeleno with decades of experience in design, construction and real estate market economics, and has previously held licenses in real estate appraisals and sales.

Mark Alexander was born in Los Angeles, raised in Canada, and brings a lifelong passion for design and a proficiency in construction to every project.