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ADUs are allowed in Westcliffe
Types:DetachedInternal

Accessory Dwelling Unit (ADU) Rules for Westcliffe, CO

Is your property eligible for an ADU?

# of Parcels
704
Zoning districts
4
Zoning Districts:
110 parcels · 4 districts
ZONE-IV
47%(52)
ZONE-II
35%(39)
ZONE-III
15%(16)
ZONE-I
3%(3)

ADU Rules

What can you build in Westcliffe, CO?

Westcliffe, CO follows state and local rules for Accessory Dwelling Units. Here is a concise overview of the local rules.

Interior / Attached ADU Size Limits

  • Maximum size is two-thirds of the primary dwelling’s conditioned (habitable) area

Detached ADU Size Limits

  • Maximum ADU size is two-thirds of the conditioned area of the primary home.

Owner Occupancy

  • Owner occupancy is not required.

Parking

  • 2 spaces/ADU; no max; exceptions: ADUs above/below/behind a business or dwelling must have parking on the alley; Core Commercial district requires off-street parking for residential uses (200 sq ft per space)

Rental Restrictions

  • Vacation rental license required before operation/advertising; STR2 (non-owner-occupied) Special Review with a 3.5% cap, adjacency limits, and Old Town two-per-block limit.
  • Short-term occupancy/use limits: max 1 family or 2 people per bedroom (whichever is greater); lodging use only; no non-overnight guests after 10 p.m.

ADU State Law

What can you build in Colorado?

  • ADUs must be approved based on objective standards; no discretionary hearings allowed.
  • Historic properties: Local historic review may still apply in designated historic districts.
  • Exempt parcels: ADUs are not required to be allowed on parcels without adequate water/sewer, in floodways, or on certain historic properties.
  • HOAs cannot prohibit ADUs: HOA rules that conflict with the state ADU law are void.
  • Parking exceptions exist: In rare cases, one parking space may be required if there is no existing off-street parking and on-street parking is prohibited.
  • Local rules still matter: Building code, fire code, utility capacity, and life-safety standards still apply.
  • More permissive is allowed: Municipalities may allow larger ADUs, multiple ADUs, or additional housing types beyond what the state requires.
  • Local zoning controls whether ADUs are allowed at all.
  • HOA rules may still apply.
  • More permissive local rules are allowed.

What's allowed on your lot?

These are the municipality-wide rules. What's allowed on a specific property also depends on state laws, setbacks, floor area ratio, lot coverage, environmental constraints, topography, and other property-specific factors. Search your address on FutureLot to see what's allowed on your property.

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ADU rules in other Colorado municipalities

Rules change at the town line. Check the municipality your property is actually in.

Custer County

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