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Glendale / ADU construction

ADU construction in Glendale

Glendale publishes ADU guidance through Community Development's Development Services. Verify the current rules for your address, then compare a detached unit, an attached unit or a garage conversion against the lot's slope, access and utilities.

01

What shapes this work here

City ADU guidance

Development Services is the Glendale reference for ADU questions; confirm current rules by address.

Slope decides location

On foothill lots, the flattest reachable area may not be where the owner first imagined the unit.

Sewer and electrical capacity

The route and slope of the sewer connection, and spare panel capacity, often decide feasibility more than floor plans do.

02

First steps in this city

  1. 01

    Read Glendale's ADU guidance

    Identify the matching type.

  2. 02

    Sketch the lot

    Structures, slope and trees.

  3. 03

    Trace the sewer

    Where the lateral leaves the house.

  4. 04

    Photograph the panel

    Label and main breaker.

03

What the scope usually covers

  • Site evaluation comparing a new detached unit with converting an existing garage or accessory structure
  • Foundation: new footing design, or assessment of an existing slab and shell
  • Utility routes from the main service to the unit
  • Build-out, final inspections and handover documents
  • Sewer connection route evaluated against grade
04

Bring to the first conversation

  • Property address
  • Site sketch with structures, trees, slopes and utility locations
  • Intended use of the unit
  • Photos of the garage interior and slab if converting
  • Where the sewer cleanout or lateral is, if known
05

Questions homeowners ask

Can a Glendale ADU use a pre-designed plan?
Ask Development Services what is currently offered. Any plan must still fit your lot's site review.
Do you predict permit approval?
No. We prepare what the City reviews; the City decides.

Official references

These references explain where to look; they do not confirm what applies to a specific parcel.

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