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Caldwell Zoning & Land Use Guide

Last updated: Verified:

Key Zoning Facts

Planning Department
City of Caldwell Planning and Zoning(208) 455-4656
Building Code Edition
2018 IBC adopted locally
ADUs Allowed
Yes
Primary District
R-1 Single-Family Residential
Max Height
35 ft

Regulatory Layers That Apply in Caldwell

Your property is subject to ALL of these regulatory layers. Each one can impose additional requirements beyond the others.

Federal

State — Idaho

  • Building Code: 2018 IBC (locally adopted)
View Idaho zoning overview

County — Canyon County

  • Role: Property records, tax assessment, unincorporated area planning

City / Municipal

The city's zoning ordinance, building codes, and local permits form the primary layer of land-use regulation for your property.

Overlay Districts

No overlay districts identified.

Private Restrictions

  • HOA / CC&Rs common: Yes
  • Check HOA CC&Rs for additional restrictions.

Primary Zoning Districts

District CodeNameMin LotMax HeightFront SetbackSide SetbackRear SetbackFAR
R-1Single-Family Residential8,000 sq ft35 ft20 ft5 ft15 ft
R-3Multi-Family Residential3,500 sq ft45 ft20 ft10 ft15 ft
C-2General CommercialNone50 ft0 ft0 ft10 ft

ADU Rules in Caldwell

ADUs:Allowed
Max Size
700 sq ft
Max Height
25 ft
Rear Setback
5 ft
Side Setback
5 ft
Parking
1 off-street space required
Owner Occupancy
Required
Permit Timeline
30-60 days
Full ADU rules for Caldwell

Official Sources

Frequently Asked Questions

Frequently Asked Questions

Can I build an ADU in Caldwell?
Yes. Caldwell permits accessory dwelling units on single-family residential lots, subject to size and setback requirements. Contact Planning and Zoning for details.
How do I find the zoning for my property in Caldwell?
Use the city's GIS mapping portal or contact the Planning and Zoning department.
What zones allow multi-family housing in Caldwell?
Multi-family housing is permitted in R-2 and R-3 zones and in commercial districts that allow residential mixed-use, primarily along Cleveland Boulevard and in the downtown area.