ADU Builders in Woodland Hills, CA

Detached new build, garage conversion or over-the-garage?

The deep lots in the Woodland Hills flats usually support a detached unit without giving up the whole yard. Garage conversions are faster and reuse the structure, but the slab, framing and roof must be brought to current code. A second-story unit over a garage preserves parking and yard space but adds structure and stairs. Feasibility tells you which your lot and budget support.

Flats or hillside

North of the Boulevard, ADUs are mostly a zoning and utility exercise. South of it, slope, retaining walls, hillside rules and fire-zone materials enter the picture and the design has to respect them. We tell you at the first visit which category your property is in and what that means for cost and schedule.

Size and layout

Studio, one-bedroom and two-bedroom layouts trade square footage against yard space and cost. For a parent or adult child, accessibility — a no-step entry, wider doors and a curbless shower — is worth designing in from the start.

Utilities and the main panel

Sewer route, electrical capacity at the main panel and whether the ADU gets its own meter are decided early because they shape both the design and the estimate. Older Woodland Hills panels often need an upgrade to carry a second kitchen and a mini-split system.

• Woodland Hills is within the City of Los Angeles; ADU permits are issued by LADBS under state ADU law and the City’s ADU ordinance, typically through the Van Nuys or West Los Angeles office.
• State law generally allows at least one ADU on a single-family lot with reduced setbacks for detached units; the specifics depend on your parcel and are confirmed during feasibility.
• Parcels south of Ventura Boulevard are frequently subject to the Baseline Hillside Ordinance, which affects grading, height, access and haul routes, and many hillside streets are in a Very High Fire Hazard Severity Zone with additional material requirements.
• LADBS offers pre-approved ADU standard plans that can shorten plan check when the design fits your lot. Requirements change; we confirm them with LADBS for every project.

Timeline

Feasibility and design take a few weeks; LADBS plan check follows and varies with the design and season. Construction of a detached ADU typically runs several months; a garage conversion is shorter. You receive a written schedule and a single point of contact from the first visit to the certificate of occupancy.