Ritz ADU Design Build is a San Diego ADU specialist with roots going back to 1965 — one of the longest-standing contractors in the directory. ADU-exclusive operation covering detached ADUs, garage conversions, attached ADUs, granny flats, mother-in-law suites, backyard offices, art studios, and backyard rentals. Pre-approved floor plans available for faster permitting. In-house 3D design center produces full-color renderings and virtual walkthroughs before construction begins. Research and development team stays current with state, county, and city-specific ADU rules across every San Diego jurisdiction. Documented projects include the Pfiefer garage conversion, Gill 1-bedroom ADU, Salvia backyard ADU, and Taylor 2-bedroom built within a garage footprint. Rated on Google, Houzz, Yelp, and Angi. CSLB license active, bond on file, no complaints on record.