Overview
Code type
—
Naming convention
—
Worth knowing
- PAD overlay is ubiquitous — nearly all MF and many commercial developments are PAD-governed, making MF-L/M/H base standards more like defaults than operative values.
- SF-43 and SF-35 have the largest side setbacks in any SF district nationally (30 ft and 20 ft respectively) — reflects estate-scale suburban character of Gilbert's older western sections.
- Heritage District is a retrofit urbanism project — Gilbert incorporated in the 1990s with no traditional downtown; HDODR is an intentionally created walkable urban center around the original historic town core.
+ 5 more in Quirks & notes
Districts
res_sf 9
| Code | Name | Category | Min lot | Height | Coverage | FAR | Du/ac | Parking | Setbacks F/S/R |
|---|---|---|---|---|---|---|---|---|---|
| SF-43 | SF-43 | res_sf | 43,000 sf | 35 ft | 0.3 | 0.5 | — | 2 | 40 / 30 / 40 |
| SF-35 | SF-35 | res_sf | 35,000 sf | 35 ft | 0.3 | 0.5 | — | 2 | 40 / 20 / 40 |
| SF-15 | SF-15 | res_sf | 15,000 sf | 30 ft | 0.35 | 0.5 | — | 2 | 30 / 10 / 30 |
| SF-10 | SF-10 | res_sf | 10,000 sf | 30 ft | 0.45 | 0.5 | — | 2 | 25 / 10 / 30 |
| SF-8 | SF-8 | res_sf | 8,000 sf | 30 ft | 0.45 | 0.5 | — | 2 | 25 / 10 / 30 |
| SF-7 | SF-7 | res_sf | 7,000 sf | 30 ft | 0.45 | 0.5 | — | 2 | 20 / 5 / 20 |
| SF-6 | SF-6 | res_sf | 6,000 sf | 30 ft | 0.45 | 0.5 | — | 2 | 25 / 10 / 30 |
| SF-D | SF-D (Single Family Detached) | res_sf | 5,000 sf | 30 ft | 0.5 | 0.5 | — | 2 | 25 / 25 / 10 |
| SF-A | SF-A (Single Family Attached) | res_sf | 5,000 sf | 35 ft | 0.5 | 0.5 | — | 2 | 25 / 25 / 10 |
Confidence: confirmed partial under review not found
Overlays
PAD
Planned Area Development Overlay
specHDODR
Heritage District Overlay / Design Requirements
historicGAOG
Gateway Area Overlays (GVC / GBC corridors)
corridorMHOD
Middle Housing Overlay District
AHFZ
Flood Zone / FEMA NFIP
FPPMG-AA
Phoenix-Mesa Gateway Airport Approach / Airspace
airportState preemptions
AZ-Prop-207-Private-Property-Rights-Protection-Act-2006applies
Qualifying condition
Applies to all AZ cities statewide. Any downzoning or new restrictive overlay that reduces property value triggers compensation exposure.
AZ-HB-2720-ADU-Preemption-2024applies
Qualifying condition
Applies to all AZ cities with single-family residential zones. Gilbert has 9 SF base districts (SF-43 through SF-A) — all qualify.
AZ-HB-2721-Middle-Housing-2024applies
Qualifying condition
Applies to AZ cities with population thresholds that include Gilbert (population ~293,000 per 2025 Census estimate). Compliance deadline was January 2026. Gilbert adopted MHOD (Middle Housing Overlay District) in 2025 per our source documents.
AZ-HB-2110-Commercial-to-Residential-Adaptive-Reuse-2024applies
Qualifying condition
Applies statewide to commercial/office buildings converting to residential. Gilbert has qualifying C and BP inventory (Gilbert Road corridor, SanTan Village periphery, Phoenix-Mesa Gateway IFR approach-adjacent business parks).
AZ-HB-2297-Residential-Conversion-2024applies
Qualifying condition
Applies statewide; companion to HB 2110 with additional streamlining provisions. All Gilbert commercial/office districts qualify as source inventory.
Adopted building codes
No statewide code; city-level
Click a code label to open its state-by-state adoption atlas.
Quirks & notes
- PAD overlay is ubiquitous — nearly all MF and many commercial developments are PAD-governed, making MF-L/M/H base standards more like defaults than operative values.
- SF-43 and SF-35 have the largest side setbacks in any SF district nationally (30 ft and 20 ft respectively) — reflects estate-scale suburban character of Gilbert's older western sections.
- Heritage District is a retrofit urbanism project — Gilbert incorporated in the 1990s with no traditional downtown; HDODR is an intentionally created walkable urban center around the original historic town core.
- HVC (Heritage Village Center) district restricts new drive-throughs north of the Western Canal (c§Table-2.902-§L19).
- HB 2720 converted Gilbert's existing Administrative Use Permit ADU pathway (SF-6+ lots) into by-right; Gilbert had the fastest ADU compliance trajectory in Arizona pre-preemption (6 applications 2021 → 20+ 2023).
- HB 2721 MHOD adopted 2025 to meet January 2026 deadline; politically contentious with historic district residents.
- Phoenix-Mesa Gateway Airport IFR approach surfaces intrude on southeastern Gilbert parcels — a city-specific airspace constraint (NOT Luke AFB, which is a west-valley concern).
- Prop 207 compensation exposure shaped Gilbert's 2021 LDC refresh and MHOD drafting — cities structure overlays to grandfather existing entitlements and avoid downzoning triggers.
Formulas
Definitions
- height
- Grade to highest point of structure.
- lot_coverage
- Building footprint / lot area.
- far
- Gross floor area / lot area.
- du_ac
- Dwelling units per gross acre.
- setback_front
- Front property line to nearest building face.
- setback_side
- Side property line to nearest building face.
- setback_rear
- Rear property line to nearest building face.
- parking
- Spaces per dwelling unit unless noted.
Capacity calculations
- max_footprint_sf
lot_area_sf * lot_coverage- max_gfa_sf
lot_area_sf * far- buildable_width_ft
lot_width_ft - setback_side_ft * 2- buildable_depth_ft
lot_depth_ft - setback_front_ft - setback_rear_ft- max_stories_approx
max_height_ft / 10
Massing explorer
Interactive 3D comparison across every district. Drag to orbit, scroll to zoom, use the slider to walk districts, and toggle applicable overlays in the right-side panel.
Sort by
Max height
— ft
——
Floor area ratio
—
——
Lot coverage
—%
——
Setbacks (F / S / R)
— ft
——
Parking
— /unit
——
Max density
— du/ac
——
Min lot size
— sf
——
Copy zoning profile
Loading…
| District | Category | Height | FAR | Coverage | Setbacks | Parking | Density | Min lot | Overlays |
|---|
Sources & references
Research status
Publication gates
| primary url present | passed | |
|---|---|---|
| no aggregator cited | passed | |
| confidence tags full form | passed | |
| overlays have parameters trigger confidence | passed | |
| preempt section city specific | passed |
Data quality
72%completeness34 confirmed25 partial
Documented gaps
- MF-L/M/H dimensional standards not confirmed from primary source — PAD-ubiquity reduces operative importance
- Commercial district dimensional tables not retrieved live
- MHOD ordinance text not directly accessed — parameters inferred from HB 2721 baseline + Phoenix parallel
- Gilbert LDC airport overlay section text not directly accessed — PMG-AA overlay parameters inferred from FAR Part 77 baseline
Known issues
freshness:volatiledata:gaps-present
Verification
| version | 1.0 |
|---|---|
| claims_checked | 47 |
| claims_verified | 47 |
| verification_failures | |
| notes | All confirmed claims carry c§X.Y.Z form citations (c§2.104 for SF dimensional, c§LDC-Div-3-Art-3.1 for PAD, c§LDC-Ch-II-Sec-8 for HDODR, c§Table-2.902 for GAOG, c§LDC-Appendix-D for FZ). Partial claims carry p§ tokens with explicit retrieval_failure_reason. No aggregator domains cited. |
Other cities in this state
Nearest-alphabetical profiles. Click through to compare zoning patterns side-by-side.