Zoning › Alabama › Madison County › Huntsville

Huntsville, AL Zoning

20 districts. 6 overlays.
This profile is an earlier edition — some fields may be incomplete. An updated profile is in progress.

Districts

res_sf 8com 5ind 3mu 3res_mf 1
CodeNameCategory Min lotHeight CoverageFAR Du/acParking Setbacks F/S/R
R-1Single-Family Residential - Low Densityres_sf5,000 sf35 ft0.50.5—225 / 25 / 10
R-1-ASingle-Family Residential - 1Ares_sf12,000 sf35 ft0.50.5—225 / 25 / 10
R-1-BSingle-Family Residential - 1Bres_sf7,500 sf35 ft0.50.5—225 / 25 / 10
R-1-CSingle-Family Residential - 1Cres_sf5,000 sf35 ft0.50.5—225 / 25 / 10
R-2Residential - 2 Storyres_sf5,000 sf35 ft0.50.5—225 / 25 / 10
R-2-AResidential - 2Ares_sf5,000 sf35 ft0.50.5—225 / 25 / 10
R-2-BResidential - 2Bres_sf5,000 sf35 ft0.50.5—225 / 25 / 10
R-2-CResidential - 2Cres_sf5,000 sf35 ft0.50.5—225 / 25 / 10
RMResidential - Multi-Familyres_mf5,000 sf35 ft0.50.5—225 / 25 / 10
CNCommercial - Neighborhoodcom5,000 sf35 ft0.50.5—225 / 25 / 10
CCCommercial - Communitycom5,000 sf35 ft0.50.5—225 / 25 / 10
CGCommercial - Generalcom5,000 sf35 ft0.50.5—225 / 25 / 10
CRCommercial - Regionalcom5,000 sf35 ft0.50.5—225 / 25 / 10
CDCommercial - Downtowncom5,000 sf35 ft0.50.5—225 / 25 / 10
ILIndustrial - Lightind5,000 sf35 ft0.50.5—225 / 25 / 10
IGIndustrial - Generalind5,000 sf35 ft0.50.5—225 / 25 / 10
IHIndustrial - Heavyind5,000 sf35 ft0.50.5—225 / 25 / 10
AGAgriculturalmu5,000 sf35 ft0.50.5—225 / 25 / 10
PIPublic/Institutionalmu5,000 sf35 ft0.50.5—225 / 25 / 10
MUMixed-Usemu5,000 sf35 ft0.50.5—225 / 25 / 10

Confidence: confirmed partial under review not found

Overlays

HPZ
Historic Preservation
HP

Applies to: Residential, Commercial, Office, Mixed-Use

height multiplier-0.05
setback addition (ft)5
FH
Flood Hazard District / Floodplain
FP

Applies to: Residential, Commercial, Mixed-Use, Office

coverage adjustment (%)-10
setback addition (ft)15
AO--/-ANE
Airport Obstruction and Noise Exposure
AP
height cap (ft)100
SDD
Slope Development
HS

Applies to: Residential, Commercial, Mixed-Use, Office

coverage adjustment (%)-10
setback addition (ft)15
[IHDRP
Downtown/Central Business
DT

Applies to: Residential, Commercial, Office, Mixed-Use

height multiplier-0.05
setback addition (ft)5
RAIP
Redstone Arsenal/Military Installation Proximity
spec
height cap (ft)100

Adopted building codes

Statewide

IBC
2021
IRC
2021
NEC
2020
IFC
2021
IECC (Residential)
2015
IECC (Commercial)
2015

Click a code label to open its state-by-state adoption atlas.

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.

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Max height
— ft
——
Floor area ratio
—
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Lot coverage
—%
——
Setbacks (F / S / R)
— ft
——
Parking
— /unit
——
Max density
— du/ac
——
Min lot size
— sf
——
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District Category Height FAR Coverage Setbacks Parking Density Min lot Overlays

Research status

Data quality

11%completeness11 confirmed59 partial34 inferred
Documented gaps
  • Quirks not populated — requires markdown source review

Known issues

schema:v1-legacypriority:lowdata:gaps-present

Other cities in this state

Nearest-alphabetical profiles. Click through to compare zoning patterns side-by-side.

BirminghamMobileMontgomery