Applications
Last Updated: 05/10/2026

Unauthorized Dwelling Unit (UDU) Screening Request & Affidavit

An Unauthorized Dwelling Unit, or UDU, is defined in Planning Code Section 317(b)(13) as one or more rooms within a building that have been used, without the benefit of a permit, as a separate and distinct living or sleeping space independent from other Residential Units on the property. A completed UDU affidavit must be submitted in addition to this form.

Planning Staff may request a UDU screening for permits for interior work to determine if a project removes certain features that allow the space to operate as a separate unit. Scopes of work that may require UDU screening include but are not limited to:

  • Removal of direct or indirect access doors
  • Removal of a full bathroom
  • Removal of a kitchen
  • Removal of a wet bar
  • Addition of a staircase to create an interior connection between floors

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