A fully permitted accessory dwelling unit, designed to feel like a natural extension of your property — not an afterthought in the backyard.
Overview
Whether it's a studio for guests, a private suite for aging parents, or a rental unit that adds real income, an ADU is one of the highest-return projects a San Diego homeowner can take on. Tri Builders manages the design, engineering, and City or County permitting from the first sketch through final inspection — so the process stays yours to enjoy, not manage.
