ADUs and additions, El Segundo, Los Angeles County
Home Additions and ADUs in El Segundo
When a home addition is the first job in El Segundo, how the same wing compares as an attached ADU, and what the El Segundo building division reviews.
Where the main house in El Segundo needs another bedroom and the yard has little room for a separate building, a home addition becomes the first job to plan. The same new wing can be drawn as an attached ADU with its own entry, so we lay it beside detached, garage conversion and JADU layouts on one comparison before any drawings start.
One wing, two ways to permit it
Drawn as an addition, the new rooms belong to the main dwelling and share its heating and electrical meter. Drawn as an attached ADU, the wing needs a kitchen, a bathroom, a separate entrance and a fire rated wall and ceiling assembly between the ADU and the house. Either way, the roof tie-in is flashed with care and the existing framing is checked for the added load. Damp air off the water calls for corrosion resistant connectors and well sealed window openings on both versions. Setbacks and lot coverage then cap how far the wing can extend.
El Segundo review and site permits
The El Segundo building division, run by the city itself, reviews additions and ADUs against state law and the city zoning code. Before design we look up whether a parcel near the water also needs a separate development permit from the city. Inspections run from the foundation through framing and rough trades to the final, and an attached unit gets a look at its fire separation along the way. Manhattan Beach and Hermosa Beach each have reviewers of their own, while Playa Vista and Marina del Rey go through other offices, and our planning steps carry over to all of them.
What we build in El Segundo
Second units and room additions lead, with the rest of our services available on the same lot.
Planning a unit in El Segundo?
Send the address. We check which ADU types the lot allows and reply with the next step.