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 |
| RH — maximum residential density | 1 unit |
| SR — minimum lot area | 144,000 sq ft |
| SR — maximum residential density | 1 unit |
| SH — minimum lot area | 36,000 sq ft |
| SH — maximum residential density | 2 units |
| RX-1 — minimum lot area | 36,000 sq ft |
| RX-1 — maximum residential density | 1 unit |
| RX-2 — minimum lot area | 16,000 sq ft |
| RX-2 — maximum residential density | 1 unit |
| R-1 — minimum lot area | SF: 7,000 |
| R-2 — minimum lot area | 5,000 |
| R-2 — maximum residential density | MF: 15/ACRE |
| R-3 — minimum lot area | SF: 5,000 |
| R-3 — maximum residential density | MF: 36/ACRE |
| MH-1 — minimum lot area | SF/MH: 7,000 |
| MH-1 — maximum residential density | MF/MH PARK: 8/ACRE |
| MH-2 — minimum lot area | SF/MH: 5,000 |
| MH-2 — maximum residential density | MF/MH PARK: 15/ACRE |
| O-1 — minimum lot area | RES: 7,000; NON: 10,000 |
| O-1 — maximum residential density | 8/ACRE |
| O-2 — minimum lot area | RES: 5,000; NON: 0 |
| O-2 — maximum residential density | 8/ACRE |
| O-3 — minimum lot area | RES: 5,000; NON: 0 |
| O-3 — maximum residential density | 22/ACRE |
| C-1 — minimum lot area | 0 |
| C-1 — maximum residential density | 36/ACRE |
| C-2 — minimum lot area | 0 |
| C-2 — maximum residential density | 44/ACRE |
| C-3 — minimum lot area | 0 |
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: 6' or 2/3(H); 10' or 3/4(H). 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: 180,000 sq ft; SR: 144,000 sq ft; SH: 36,000 sq ft; RX-1: 36,000 sq ft.
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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- Is mixed-use development allowed in Tucson, AZ?→
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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