Los Angeles ADU Builders
Ohayon Construction builds accessory dwelling units in Los Angeles. Whether you are considering a detached backyard home, an attached ADU or a garage conversion, we help define the layout and construction scope for your property and goals.
ADU options for your property
A detached ADU creates a separate living space. An attached ADU connects to the main home, while a garage conversion adapts an existing structure. A junior ADU may also be worth exploring where applicable. The right option depends on the existing property, intended use, site conditions and current approval requirements.
A completed Beverly Hills ADU
Our 2026 Beverly Hills project is a detached one-bedroom ADU of approximately 500 square feet. An open kitchen and living area, paired with larger windows, helped the interior feel bigger. Construction took approximately six months; timelines for other projects vary.
Plan the scope, budget and construction
We begin with your property address, intended use and any available plans. The discussion includes layout, access, utilities, finish selections and the work needed to prepare the site. We coordinate the construction scope with the required plans and approvals before work begins.
Size alone does not determine an ADU budget. Utility connections, foundations, site access, structural work and material choices can affect both cost and timing. A property-specific review is needed before confirming an estimate or schedule.
Compare an ADU with an addition
If your main goal is more space within your existing home, explore our home addition services. For a new primary residence, see custom home construction.
We serve Los Angeles and the communities listed on our Areas We Serve page. Request a free ADU consultation to discuss your property and next steps.
Our service areas also include La Cañada Flintridge, Los Feliz, Century City, El Segundo, Norwalk, Downey, Whittier, La Mirada, San Pedro, Lomita and Rolling Hills Estates. Explore the Areas We Serve directory for local project-planning information.
Garage conversion or detached ADU?
A garage conversion adapts an existing structure. Its foundation, framing, roof, floor level and utility capacity need review before assuming the building can simply be refinished. A detached ADU provides more freedom to plan a new layout, but introduces a new foundation, structure and connections. Compare usable space, access, privacy, outdoor space and the work required for each option before deciding which is more suitable.
What should an ADU estimate include?
Ask how the proposal treats site preparation, demolition, foundations, structural work, utility connections, plumbing, electrical work, heating and cooling, finishes and exterior restoration. Clarify allowances, exclusions and responsibility for design, permits and fees. Existing conditions or late selections can change the scope; review how changes will be priced and approved in writing.
Coordinate access, drainage and the surrounding yard early. Our landscape and hardscape service can be discussed alongside the ADU scope. If you mainly need additional rooms within your primary home, compare a home addition.
Flexible living space
An ADU can provide private space for family, guests or permitted rental use. Resale value and rental returns depend on costs, financing, operating expenses and market conditions. Construction does not guarantee a particular return or value increase.
Service areas
We serve Los Angeles, Hollywood, Silver Lake, West Hollywood, Beverly Hills, Bel Air, Brentwood, West LA, Santa Monica, Pacific Palisades, Malibu, Venice, Marina del Rey, Culver City, Sherman Oaks, Studio City, Encino, Tarzana, Reseda, Northridge, Woodland Hills, West Hills, North Hollywood, Winnetka, Canoga Park, Calabasas, Agoura Hills, Burbank, Glendale, Pasadena, Manhattan Beach, Hermosa Beach, Redondo Beach, Torrance, Palos Verdes Estates, Rancho Palos Verdes, Long Beach, Lakewood and Signal Hill. Explore local service-area information. ADU feasibility depends on the property and applicable approvals.
Learn about Ohayon Construction and verify license #1039632, or request a free ADU consultation.