Littleton Zoning & Land Use Guide
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:
- 45,652
- County:
- Arapahoe County
- State building code:
- No mandatory statewide code (local jurisdictions adopt)(statewide default)
- State ADU law:
- Yes — Colorado HB 24-1152 (signed May 13, 2024, effective June 30, 2025) requires subject jurisdictions (municipalities of 1,000+ within a metropolitan planning organization, or counties with a census-designated place of 40,000+ within an MPO) to allow at least one accessory dwelling unit on lots zoned for a single-unit detached dwelling, through an administrative approval process, and prohibits certain restrictive requirements including parking minimums and owner-occupancy rules.
- FEMA flood map:
- Search flood zones
- Planning department:
- City of Littleton Community Development
- Municipal code:
- View code online
- Zoning map:
- View local zoning map
Before you apply
- Call the City of Littleton Community Development: (303) 795-3748
- Search the municipal code for the chapter that covers your zoning district and proposed use.
- Use the local zoning map to look up your parcel's zoning designation before applying for a permit.
- Check FEMA flood zone for your parcel — flood-zone status changes setbacks, foundation requirements, and insurance.
- Check your HOA CC&Rs and recorded deed restrictions — they are common in Littleton and frequently restrict ADUs, fences, and exterior changes beyond what zoning allows.
Key Zoning Facts
Regulatory Layers That Apply in Littleton
Your property is subject to ALL of these regulatory layers. Each one can impose additional requirements beyond the others.
Federal
- FEMA flood mapping: check parcel-specific flood-zone status
- View FEMA Flood Map
State — Colorado
- Building Code: 2021 IBC (locally adopted)
- State ADU Override: Yes (Colorado HB 24-1152 (signed May 13, 2024, effective June 30, 2025) — requires subject jurisdictions to allow at least one ADU on single-unit detached lots; prohibits parking minimums and owner-occupancy requirements.)
County — Arapahoe 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.
- Check HOA CC&Rs for additional restrictions.
Statewide Context (Colorado)
Local data for Littleton is limited. The following state-level facts apply across Colorado and are inherited by this page until city-specific details are verified.
- State Building Code
- No mandatory statewide code (local jurisdictions adopt)
- State ADU Preemption
- Yes — state law overrides local rules
- Coastal Zone
- No
- Wildfire Zones
- Yes
ADU Rules in Littleton
State law (statewide context, not city-specific):
Colorado HB 24-1152 (signed May 13, 2024, effective June 30, 2025) requires subject jurisdictions (municipalities of 1,000+ within a metropolitan planning organization, or counties with a census-designated place of 40,000+ within an MPO) to allow at least one accessory dwelling unit on lots zoned for a single-unit detached dwelling, through an administrative approval process, and prohibits certain restrictive requirements including parking minimums and owner-occupancy rules.
For local size, setback, and parking specifics, contact the City of Littleton Community Development.
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 Littleton permit information →Official Sources
City-specific