California state law has opened the door for most Westwood homeowners to add an Accessory Dwelling Unit (ADU) on their lot. This guide covers the rules, the design choices, and the build process.
State law vs local rules
California Government Code 65852.2 (the state ADU law) sets a floor: every single family lot can have at least one ADU plus one Junior ADU. Cities can add layers on top but cannot block ADUs entirely. Westwood has its own ordinance that further shapes setbacks, height, and lot coverage.
Site feasibility
Before design, walk the lot for setbacks, sewer capacity, electrical service capacity, slope, and easement constraints. Detached new build ADUs need a footprint and yard space. Garage conversions reuse an existing structure. Junior ADUs sit inside the main house. Each path has its own cost basis and construction timeline.
Permits in Westwood
ADU submittals are ministerial in California, meaning the city reviews them administratively without discretionary review. LADBS, LA City Planning. typically completes plan check in 60 to 120 days. Wilshire Corridor high rise condos with concrete post tension slabs require building engineer sign off on wet over wet plumbing relocations, elevator and freight scheduling, and HOA architectural review. UCLA adjacency creates significant student and academic housing market influences. Garage conversions usually clear faster than detached new builds.
Construction window
Site clearance, foundation, framing, MEP rough, exterior dry in, interior finish, fixture install, final inspection. ADU builds in Westwood typically run 4 to 7 months of construction. From signed design contract to final inspection most projects total 8 to 14 months.
ADU rules specific to Westwood
State ADU law does not generally apply to high rise condominium units. Westwood single family parcels follow standard LADBS process.
How Paradigm Builders Can Help in Westwood
Paradigm Builders runs design, permits, and construction across the full residential scope in Westwood. Browse our service pages for what fits your project:
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