Newcastle Zoning & Land Use Guide

Last updated: Verified:

Official references and local checks

Use the official references below to identify the rules that apply to your address, then confirm parcel-specific requirements with the local authority before filing an application.

Official references

Population:
3,354 (2024 data year)
County:
Weston County
State building code:
No mandatory statewide building code; local adoption(statewide default)
State ADU law:
No statewide override; local rules apply
FEMA flood map:
Search flood zones
Planning department:
Newcastle Planning Department
Municipal code:
View code online

Before you apply

Key Zoning Facts

Local Zoning / Building Office
Newcastle Planning Department
Building Code Edition
No mandatory statewide building code; local adoption
ADU / Accessory Apartment
Verify by district

Regulatory Layers That Apply in Newcastle

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

Federal

State — Wyoming

  • Building Code: No mandatory statewide building code; local adoption
View Wyoming zoning overview

County — Weston County

    City / Municipal

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

    Overlay Districts

    No overlay districts identified.

    Private Restrictions

    • Private covenants, deed restrictions, condominium rules, or association rules can impose requirements beyond zoning.

    Statewide Context (Wyoming)

    Local data for Newcastle is limited. The following state-level facts apply across Wyoming and are inherited by this page until city-specific details are verified.

    State Building Code
    No mandatory statewide building code; local adoption
    State ADU Preemption
    No statewide override
    Coastal Zone
    No
    Wildfire Zones
    Yes

    Permit Costs & Timelines

    Check Current Permit Fees & Timelines

    Permit fees and review times can vary by project type, scope, valuation, and required approvals. Check the current schedule with the local permitting authority before filing.

    Check current Newcastle permit information →

    Official Sources

    City-specific