City dossier

Los Angeles County

Building an ADU in Glendale.

⊕ 34°08′ N · 118°15′ W

Glendale runs a competent, predictable ADU program — staff are responsive and the rulebook is close to the state default. The main variable is your lot: flat residential parcels move fast, hillside parcels become engineering projects before they become construction projects.

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The numbers

At a glance.

Four data points to anchor every conversation you'll have with a contractor, architect, or permit expediter in Glendale.

Typical permit fee $4,500

City permit + plan-check fee for a mid-size ADU. Excludes school & impact fees.

$-2000 vs LA-area median
Permit timeline 8–14 wks

From a complete application to permit issuance. Plan-check rounds can extend this.

Glendale portal · 2026-05
Rent (1-bed ADU) $1800–$3000

Long-term rental range, market rate, 2026 estimates.

2026 rent surveys
Median lot 6000 sf

Typical single-family parcel — your lot determines what's physically possible.

LA County Assessor
The local rule

The rule that matters.

Rule · Glendale

Glendale's hillside overlay covers a meaningful portion of the city (Verdugo, Chevy Chase, parts of the Rossmoyne area). Hillside parcels add a grading review and may trigger a soils report — budget $3,000–$6,000 and 4–8 weeks for that path.

Every California city must comply with the statewide ADU framework, but each one has a local quirk — a program, an overlay, or an interpretation — that changes the math. This is the one to read first for Glendale.

Permits & fees

Fees, decoded.

Your city's permit fee is the visible cost. Impact fees and utility connection fees are where projects get expensive without warning — read this carefully.

Permit + plan-check fee
$4,500
Processing window
8–14 weeks (application to issuance)
City planning portal
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Impact fees

Glendale follows the state minimum impact-fee schedule for ADUs. Under 750 sqft you pay nothing in impact fees; over 750 sqft, Glendale Unified collects school fees at the state rate. Glendale Water & Power has straightforward separate-meter pricing if you want utility independence.

Cost ranges

What it costs in Glendale.

Standard-finish, default-size totals for each ADU type — including Glendale's permit fee, soft costs, utility hookups, and a 10% contingency.

Detached new construction 800 sqft · Standard finish
$346k—$457k
  • Build & finishes$288k–$368k
  • City permit$4k
  • Soft costs$14k–$29k
  • Utilities$8k–$14k
  • Contingency (10%)$31k–$41k
Property value uplift+$250k–$350k
Attached new construction 600 sqft · Standard finish
$228k—$312k
  • Build & finishes$186k–$246k
  • City permit$4k
  • Soft costs$9k–$19k
  • Utilities$8k–$14k
  • Contingency (10%)$20k–$28k
Property value uplift+$250k–$350k
Garage conversion 400 sqft · Standard finish
$110k—$158k
  • Build & finishes$84k–$116k
  • City permit$4k
  • Soft costs$4k–$9k
  • Utilities$8k–$14k
  • Contingency (10%)$10k–$14k
Property value uplift+$250k–$350k

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Adjacent dossiers

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