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Pima County Zoning Code Quick Summary Guide

This is a Pima County Zoning code quick reference summary. Please refer to Title 18 for a comprehensive list of provisions, restrictions and exceptions.

 

Zone Zone Definition Principal Uses Minimum Lot Area
(43,560sf = 1 acre)
Minimum Lot Width (feet) Minimum Yard Requirements(Main Structure)
Front/Side/Rear
Mobile Home permitted MaximumHeight
# of Stories
Special Standards
TH
18.11
Trailer Homesite Trailer (RV) park 18,000 sf (0.42 ac) None 30/10/30 RVs only 34/2
IR
18.12
Institutional Reserve Public reserve land 36 acres None 50/50/50 yes 34/2
RH
18.13
Rural Homestead Low density residential, agriculture 180,000sf
(4.13 ac)
None 50/20/50 yes 34/2 Cluster Development Option
GR-1
18.14
Rural Residential Residential, agriculture 36,000 sf(0.83 ac) None 30/10/40 yes 34/2 Cluster Development Option
ML
18.15
Mount Lemmon Single-family residential 36,000 sf(0.83 ac) None 5/5/5 no 34/3 Max. Building Area 50%, Cluster Devel. Option
SR
18.17
Suburban Ranch Low density rural residential 144,000 sf (3.31 ac) None 50/10/50 temporary only 34 Cluster Development Option
SR-2
18.18
Suburban Ranch Estate Low density rural residential 72,000 sf (1.66 ac) 120 30/10/40 temporary only 34/2 Cluster Development Option
SH
18.19
Suburban Homestead High density rural residential 36,000 sf
(0.83 ac)
100 30/10/40 yes 34/2 Up to 2 dwellings per 36,000 sq.ft. Cluster Devel. Option
CR-1
18.21
Single Residence Single-family residence 36,000 sf(0.83 ac) 100 30/10/40 temporary only 34/2 Cluster and Lot Reduction Options
CR-2
18.23
Single Residence Single-family residence 16,000 sf
(0.37 ac)
80 30/10/40 temporary only 34/2 Cluster and Lot Reduction Options
CR-3
18.25
Single Residence Single-family residence 8,000 sf
(0.19 ac)
60 20/8/25 temporary only 34/2 Cluster and Lot Reduction Options
CR-4
18.27
Mixed-Dwelling Type Single/Multi-family residences; duplexes 7,000 sf
(0.17 ac)
None 20/10/10 (Site) temporary only 34/2 Lot Development. & Small Lot Options
CR-5
18.29
Multiple Residence Zone Single/Multi-family residences; duplexes 6,000 sf
(0.14 ac)
None 20/10/10 (Site) temporary only 34/2 Lot Development & Small Lot Options
TR
18.31
Transitional High density residential, office and some commercial uses Residential:
10,000 sf(0.23 ac)
60 20/0/10 (Residential)
20/7/25 (Non-Residential)
temporary only 34/2 Maximium density: 1 unit per 1,000 sq.ft.
CMH1
18.33
County Manufactured and Mobile Home Manufactured or site built homes 8,000 sf
(0.19 ac)
60 20/8/25 yes 34/2 Cluster Development. Option
CMH2
18.35
County Manufactured and Mobile Home Manufactured or site built homes; mobile- home park None None see chapter 18.35 yes 34/2 Mobile Home Subdivision and Park Options
MU
18.37
Multiple Use Residential, commercial, light manufacturing Residential: 7,000 sf
(0.17 ac)
Residential: 60 20/7/25 yes 34/2 Lot Devel. and Mobile Home Subdiv. Options
MR
18.39
Major Resort Resort 20 acres none 50/50/50 (Site) no 34 Max. site coverage: 33%
RVC
18.41
Rural Village Center Zone Retail/Services Maximum 20 acres None see chapter 18.41 no 34/2 DRC review required, max. site coverage: 25%
CB-1
18.43
Local Business Indoor retail, residential Residential:
10,000 sf(0.23 ac)
Residential:
60
20/7/25
(Residential)
20/0/25
(Non-Residential)
caretaker only Residential:
34 Non-Residential:
39
Lot Development Option
CB-2
18.45
General Business Indoor/outdoor retail, wholesale, residential Residential:
7,000 sf
(0.17 ac)
Residential:
1,000
20/7/25 (Residential)
20/0/25
(Non-Residential)
caretaker only 39 Lot Development Option
CPI
18.49
Campus Park Industrial Zone Research and development, non-nuisance manufacturing 10 acres None 25/20/30
(100 from any residential zone)
no 36 or 44 (see chapter 18.49) DRC & BOS reviews, max. site coverage: 33%
CI-1
18.51
Light Industrial/Warehousing Manufacturing, retail, warehousing None None 15/0/10 caretaker only 39
CI-2
18.53
General Industrial Manufacturing, salvage yards None None 15/0/10 caretaker only 39 or 54 (see chapter 18.53)
CI-3
18.55
Heavy Industrial Intensive industrial 43,560
(1 acre)
None see chapter 18.55 no None All industrial uses require conditional use permits