LEFF Construction Design Build, founded in 1978 in Sebastopol, California, designs, builds and remodels homes in the beautiful wine country region of Sonoma County. Our award-winning projects perfectly reflect our clients? desire to share in the exceptional lifestyle that makes this one of the most desired regions in the country. The Leff Design Build process defines their core mission: to make every project a superior client experience. LEFF?s approach makes their entire Team of architects, designers, estimators, project managers and field crew accountable at every step of the project. Design-to-budget is an essential element of the process. For whole-home remodels, new home builds, sustainable and Universal Design: contact LEFF!