Buying Land in Summit County, Colorado

Short-Term Rental Licenses Are Capped by River Basin -- and Some Basins Are Full

Case-by-case / verify locally

Unincorporated Summit County (outside the towns of Breckenridge, Dillon, Silverthorne, and Frisco, which set their own separate STR rules) regulates short-term rentals under Ordinance 20-C, adopted February 15, 2023 and effective October 1, 2023. The ordinance created Resort Zone and Residential/Neighborhood Overlay Zones and set hard numeric caps on the total number of STR licenses allowed per river basin -- the Lower Blue, Upper Blue, Snake River, and Ten Mile basins each have their own cap. Public reporting as of early 2026 showed some basins already at or above their license cap (for example, the Snake River and Ten Mile basins showing more active licenses than their nominal caps under grandfathering rules), meaning a newly purchased property in those areas may not be eligible for a new STR license at all. If short-term rental income is part of your investment plan, confirm the specific basin's current cap, waitlist status, and whether the parcel is in the Resort Zone (generally more permissive) or Residential Zone before buying -- do not assume a license will be available.

The STR Rules Have Already Survived a Federal Legal Challenge

Could not confirm

A group of roughly 100 Summit County homeowners sued in federal court arguing the STR caps and zone-based exemptions violated their constitutional property rights; a federal judge dismissed the case in June/July 2024, ruling that renting one's property is not a fundamental right and that the county had a rational basis for the ordinance. Homeowners then pursued similar claims in Colorado state court. This means the caps are, for now, an established and judicially tested feature of owning property here -- not a proposal likely to be struck down soon -- but check current litigation status if you're relying heavily on STR income in your purchase decision, since the state case's outcome was still developing as of this writing.

Unincorporated Zoning Runs Through the County's Own Land Use and Development Code

Generally favorable

Land outside Summit County's incorporated towns (Breckenridge, Dillon, Silverthorne, Frisco, Blue River) is governed by the county's own Land Use and Development Code, which sets zoning districts and permitted, conditional, temporary, and accessory uses for unincorporated parcels, along with setback, height, and design standards. The county's interactive Property Information Search and GIS Parcel Query tools let you look up a specific parcel's zoning directly. Confirm zoning, buildable area, and any overlay-zone status (including the STR overlay zones) for a specific parcel with the Planning Department before buying.

A High-Value, High-Volume Resort Market

Case-by-case / verify locally

Summit County is genuinely one of the busiest resort and second-home markets in Colorado, anchored by Breckenridge, Keystone, and Copper Mountain ski areas and the town of Dillon on Lake Dillon. Land and home prices reflect that demand and are well above rural-Colorado norms; most "land" opportunities here are infill lots, teardown-and-rebuild parcels, or larger acreage well outside the resort corridors rather than typical raw rural land. Get current comparable sales from a local broker rather than assuming statewide land-price benchmarks apply.