Area profile

ADU permits in San Gabriel Valley

Typical timeline

City permit centers: 6–10 weeks ministerial; landmark districts add design review.

What changes about the permit here

The SGV is the fastest stretch of LA County we work in. Pasadena, Glendale, and Burbank all run their own building departments with shorter queues than LADBS. The catches are Pasadena's Landmark Districts and the separate municipal utilities — Burbank Water & Power, Glendale Water & Power, Pasadena Water & Power — each with their own connection fees and meter-set timelines.

Pasadena Permit Center: typically 6–8 weeks for a ministerial ADU.
Pasadena Landmark Districts (Bungalow Heaven, Garfield Heights, etc.) require Historic Preservation review.
Burbank / Glendale / Pasadena run their own water + power utilities — connection fees and timelines differ from LADWP.
Altadena and South Pasadena run through LA County Public Works — slower than the cities by 2–4 weeks.

On-the-ground notes

Pasadena, Glendale, and Burbank each run their own building & safety — generally faster than LADBS.
Pasadena has 11 designated Landmark Districts — design review applies on contributing structures.
Burbank Water & Power and Glendale Water & Power are separate from LADWP — different fees and timelines.

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Reference

San Gabriel Valley permit terms and field guides

Glossary terms

HPOZ (Historic Preservation Overlay Zone)
City of LA designation that imposes design review on alterations within a historic neighborhood.
Ministerial Review
Permit review based purely on objective standards — no public hearing, no discretion.
Title 24
California's energy efficiency code — required for all new construction and most additions.
LA City Planning
The City of LA agency that handles zoning, entitlements, and HPOZ review.

Field guides

The Los Angeles ADU permit process, step by step
Permitting an ADU inside the City of Los Angeles takes about 8–11 weeks of plan check (LADBS) plus 2–4 weeks of pre-submittal prep. State law caps ministerial review at 60 days from a complete submittal. Total city + utility fees for a 700 sqft detached ADU typically run $13,000–$26,000.