Can you build a duplex in Phoenix, AZ?

Unclear — verify with the town

Phoenix clearly has multifamily residential districts such as R-4, R-5, and R-4A, but the provided sources do not include the district-specific use and density tables needed to judge where small multifamily is by right versus requiring rezoning or another entitlement.

Confidence: low · Last researched May 2026

Dimensional standards in Phoenix, AZ

Required perimeter landscape setbacks in residential districts — maximum wall/fence height within required perimeter landscape setbacks40 inches

Related questions

Are ADUs allowed in Phoenix, AZ?

Phoenix's current ADU page states that on a lot with no more than one single-family detached primary dwelling, two ADUs are permitted in addition to the primary dwelling unit, and a third ADU may be permitted under certain circumstances.

What are the setback requirements in Phoenix, AZ?

Setbacks vary by district. Examples — Residence districts on corner lots: not less than ten feet; RE-43, RE-24, R1-14, R-4A, and certain listed residential districts under the Standard development option: up to five feet; Applicable listed residential districts under the Standard development option: no closer than three feet from the side property line; Required perimeter landscape setbacks in residential districts: 40 inches. Always confirm the exact yard requirements for your district with Phoenix, AZ.

How tall can buildings be in Phoenix, AZ?

Height limits are set per district — Required perimeter landscape setbacks in residential districts: 40 inches.

Full investor analysis

The full Phoenix, AZ report breaks down duplex and 2–4 unit feasibility by district, the approval path, and the density/dimensional limits that decide whether the numbers work. First town report is free.

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More about Phoenix, AZ zoning

View the full Phoenix, AZ zoning report →

This summary is AI-generated from public municipal sources and is not legal, engineering, or land-use advice. Always verify zoning with Phoenix, AZ officials before making decisions.

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