Can you build a duplex in Tucson, AZ?
Tucson has multifamily-capable districts such as R-2, R-3, and some office/commercial districts with stated residential density allowances, but the exact use table lines were not provided so district-by-district eligibility must be verified.
Confidence: medium · Last researched May 2026
Dimensional standards in Tucson, AZ
| RH — minimum lot area | 180,000 sq ft — From city summary table; verify in Article 6. |
| RH — maximum residential density | 1 unit — From city summary table. |
| SR — minimum lot area | 144,000 sq ft — From city summary table; verify in Article 6. |
| SR — maximum residential density | 1 unit — From city summary table. |
| SH — minimum lot area | 36,000 sq ft — From city summary table. |
| SH — maximum residential density | 2 units — From city summary table. |
| RX-1 — minimum lot area | 36,000 sq ft — From city summary table. |
| RX-1 — maximum residential density | 1 unit — From city summary table. |
| RX-2 — minimum lot area | 16,000 sq ft — From city summary table. |
| RX-2 — maximum residential density | 1 unit — From city summary table. |
| R-1 — minimum lot area | SF: 7,000 — Table also shows SF: 10,000 and nonresidential exceptions; verify parcel-specific applicability. |
| R-2 — minimum lot area | 5,000 — From city summary table. |
| R-2 — maximum residential density | MF: 15/ACRE — Table also shows 1 for some situations. |
| R-3 — minimum lot area | SF: 5,000 — Multifamily shown separately as density limit. |
| R-3 — maximum residential density | MF: 36/ACRE — From city summary table. |
| MH-1 — minimum lot area | SF/MH: 7,000 — From city summary table. |
| MH-1 — maximum residential density | MF/MH PARK: 8/ACRE — Table also shows 1 for SF/MH. |
| MH-2 — minimum lot area | SF/MH: 5,000 — From city summary table. |
| MH-2 — maximum residential density | MF/MH PARK: 15/ACRE — Table also shows 1 for SF/MH. |
| O-1 — minimum lot area | RES: 7,000; NON: 10,000 — From city summary table. |
| O-1 — maximum residential density | 8/ACRE — From city summary table. |
| O-2 — minimum lot area | RES: 5,000; NON: 0 — From city summary table. |
| O-2 — maximum residential density | 8/ACRE — From city summary table. |
| O-3 — minimum lot area | RES: 5,000; NON: 0 — From city summary table. |
| O-3 — maximum residential density | 22/ACRE — From city summary table. |
| C-1 — minimum lot area | 0 — From city summary table. |
| C-1 — maximum residential density | 36/ACRE — From city summary table. |
| C-2 — minimum lot area | 0 — From city summary table. |
| C-2 — maximum residential density | 44/ACRE — From city summary table. |
| C-3 — minimum lot area | 0 — From city summary table. |
Related questions
Are ADUs allowed in Tucson, AZ?
Accessory dwelling units, also called casitas, are permitted on residential lots in Tucson, subject to city regulations. Tucson first allowed them citywide on residential lots in late 2021, and the Mayor and Council adopted additional amendments in October 2024 to comply with state law and remove or relax several prior…
What are the setback requirements in Tucson, AZ?
Setbacks vary by district. Examples — R-1 perimeter yard: 6' or 2/3(H); 10' or 3/4(H) (conditions apply). Always confirm the exact yard requirements for your district with Tucson, AZ.
What is the minimum lot size in Tucson, AZ?
Minimum lot size depends on the zoning district — RH minimum lot area: 180,000 sq ft (conditions apply); SR minimum lot area: 144,000 sq ft (conditions apply); SH minimum lot area: 36,000 sq ft (conditions apply); RX-1 minimum lot area: 36,000 sq ft (conditions apply).
Full investor analysis
The full Tucson, 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.
Get the full Tucson, AZ report free →More about Tucson, AZ zoning
- Can you build an ADU in Tucson, AZ?→
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This summary is AI-generated from public municipal sources and is not legal, engineering, or land-use advice. Always verify zoning with Tucson, AZ officials before making decisions.
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