ADU Impact Fees: Altadena vs Glendale
How do adu impact fees rules compare between Altadena, CA and Glendale, CA?
Altadena, CA
Los Angeles County
No data available yet for Altadena.
Glendale, CA
Los Angeles County
Glendale exempts ADUs under 750 square feet from all impact fees per California Government Code §65852.2(f)(3). ADUs 750 sq ft or larger pay a Parks and Libraries development impact fee of approximately $4,700 per ADU and other fees proportional to the principal dwelling's gross floor area. School fees are governed by SB 13 (2019). Standard building permit and plan-check fees still apply through Glendale Community Development.
View full Glendale rules →Key Facts Comparison
| Fact | Altadena | Glendale |
|---|---|---|
| Under 750 sq ft | - | All impact fees waived |
| 750+ sq ft Parks/Libraries Fee | - | Approx. $4,700 per ADU |
| Other Fees | - | Proportional to principal dwelling |
| State Law | - | Gov. Code §65852.2(f) |
| School Fees | - | Proportional under SB 13 |
Highlighted rows indicate differences between cities.
Altadena FAQ
No FAQs available.
Glendale FAQ
Are ADU impact fees waived in Glendale?
Yes for ADUs under 750 sq ft — all local development impact fees are waived by California Gov. Code §65852.2(f)(3). ADUs 750 sq ft or larger pay Glendale's Parks and Libraries fee (about $4,700) plus other fees proportional to the principal dwelling's size, not the full single-family rate.
What ADU costs still apply in Glendale?
Standard building permit fees based on construction valuation, plan-check fees, and any new utility service fees from Glendale Water & Power if a separate meter is requested. Property taxes will reassess on the added square footage.
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