Nampa, ID Zoning

7 districts. 3 overlays.
This profile is an earlier edition — some fields may be incomplete. An updated profile is in progress.

Districts

res_mf 2com 2ind 2res_sf 1
CodeNameCategory Min lotHeight CoverageFAR Du/acParking Setbacks F/S/R
R-1Single-Family Residentialres_sf7,000 sf[4]35 ft[5]0.4[6]2[7]20[1] / 5[2] / 15[3]
R-2Low-Density Residentialres_mf5,000 sf[11]40 ft[12]0.5[13]1.5[14]15[8] / 5[9] / 15[10]
R-3Medium-Density Residentialres_mf3,500 sf[18]50 ft[19]0.6[20]1.25[21]15[15] / 5[16] / 10[17]
C-1Neighborhood Commercialcom6,000 sf[25]45 ft[26]0.65[27]15[22] / 5[23] / 10[24]
C-2General Commercialcom6,000 sf[31]45 ft[32]0.65[33]15[28] / 5[29] / 10[30]
I-1Light Industrialind10,000 sf[37]50 ft[38]0.6[39]20[34] / 10[35] / 20[36]
I-2General Industrialind10,000 sf[43]50 ft[44]0.6[45]20[40] / 10[41] / 20[42]

Confidence: confirmed partial under review not found

Overlays

Historic Preservation District
HP
Floodplain Overlay
FP
Airport Hazard Overlay
AP

Adopted building codes

Statewide; extensive NEC amendments

2018
2024
2023
2018
IECC (Residential)
2018
IECC (Commercial)
2018

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

Formulas

Definitions

height
Grade to highest point.
lot_coverage
Footprint / lot area.
far
GFA / lot area.
du_ac
Units per gross acre.
setback_front
Front lot line to building.
setback_side
Side lot line to building.
setback_rear
Rear lot line to building.
parking
Spaces per unit unless noted.

Capacity calculations

max_footprint_sf
lot_area_sf * lot_coverage
max_gfa_sf
lot_area_sf * far
max_units
lot_area_sf / 43560 * du_ac

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
LOW
HIGH
drag to orbit · scroll to zoom
Max height
ft
Floor area ratio
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

Sources & references

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Research status

Data quality

55%completeness
Documented gaps
  • Most values inferred from Idaho patterns — needs Municode verification

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.