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Meridian Zoning & Land Use Guide

Editor-verified· 2026-05-24
Last updated: Verified:

Notable local initiatives in Meridian

Named ordinances, statutes, and reforms specific to Meridian — each linked to an official source you can verify directly.

  1. Meridian Unified Development Code (Title 11)

    Meridian's zoning ordinance is the Unified Development Code (UDC), codified as Title 11 of Meridian City Code. The UDC consolidates zoning districts, district regulations, applicable-to-all-districts standards, and subdivision rules into a single title and is administered by the Community Development Department's Planning Division. The UDC defines Meridian's residential R-2, R-4, R-8, R-15, and R-40 districts as well as commercial, industrial, and traditional neighborhood overlay zones.

    Source · library.municode.com
  2. ADU standard — 900 sq ft / 50% of primary, with permit

    Under the Meridian UDC an accessory dwelling unit is permitted with a Community Development permit. The maximum size is 900 square feet or 50% of the primary dwelling, whichever is less. Setbacks are governed by the underlying zoning district's standards (Title 11 Chapter 2) rather than a single citywide ADU setback rule.

    Source · meridiancity.org
  3. Idaho LLUPA (I.C. § 67-6501 et seq.) — authority for the UDC

    Meridian's UDC is enacted under the authority of the Idaho Local Land Use Planning Act (LLUPA), Idaho Code Title 67 Chapter 65. LLUPA delegates police power to municipalities to adopt comprehensive plans, zoning ordinances, and subdivision rules. Because Idaho has no statewide ADU preemption (unlike Colorado or Utah), Meridian's UDC retains broader local discretion over ADU size, occupancy, and parking standards than its counterparts in neighboring states.

    Source · legislature.idaho.gov

Key Zoning Facts

Planning Department
City of Meridian Community Development(208) 884-5533
Building Code Edition
2018 IBC adopted locally
ADUs Allowed
Yes
Primary District
R-4 Low-Density Residential
Max Height
35 ft

Regulatory Layers That Apply in Meridian

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 — Ada 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

R-4Low-Density Residential
Min Lot
8,000 sq ft
Max Height
35 ft
Front Setback
25 ft
Side Setback
5 ft
Rear Setback
15 ft
R-15Medium High-Density Residential
Min Lot
4,000 sq ft
Max Height
40 ft
Front Setback
20 ft
Side Setback
10 ft
Rear Setback
15 ft
C-GGeneral Retail and Service Commercial
Min Lot
None
Max Height
65 ft
Front Setback
0 ft
Side Setback
0 ft
Rear Setback
10 ft

ADU Rules in Meridian

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

Permit Costs & Timelines

Permit Costs & Timelines

Specific permit fee schedules for Meridian are available from the local planning department. Fees vary based on project type, scope, and valuation.

Check Meridian permit fees →

Official Sources

City-specific