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What an ADU costs in El Segundo (2026)

El Segundo runs its own ADU permits and sits right next to LAX. Here are typical numbers, the local rules, and your next step.

Typical ADU numbers in El Segundo

  • A 750 sq ft backyard ADU with a standard finish costs about $300,000 to build, all in: building, site work, city fees and design.
  • Typical ADU rent: about $4,300 a month for 750 sq ft.
  • Home value nearby: about $850 per sq ft (Close-in area).

Run the free ADU and new home cost calculator for El Segundo

ADU permits and local rules in El Segundo

Who runs permits

City of El Segundo Community Development: Planning, Building Safety and the Housing Division.

Pre-approved ADU plans

Yes. El Segundo's Pre-Approved ADU (PADU) program gives approved plans a PADU number. Using one means lower plan review fees.

What can slow you down

  • LAX airplane noise may call for sound-blocking windows and walls.
  • Changing a pre-approved plan sends it to full review.
  • Pre-approvals expire when the state code is updated.

Sources: City of El Segundo Pre-Approved ADU Plan Program page. State ADU law. General information, not legal advice. Updated October 2026.

Free lot check in El Segundo

Send Hemisphere A&E your address. We look up your zoning and lot size, what fits (ADU, junior ADU, SB 9, new home, apartments, remodel or business space), red flags like fire zones or hillside rules, and a rough cost range. No cost, no pressure. Email info@hemisphereae.com or call (619) 762-7144.

More cost guides for El Segundo

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