Is a squatter a tenant — and what rights do they have?
Colorado never says it either way — but it gives you a ground for eviction written for exactly this: someone who entered your vacant building with no right or title at all. It sits apart from the grounds written about a tenant or a lessee, and none of the notice periods a landlord owes a tenant appear in it. What Colorado does not do is let you skip the case.
›Read the law — 3 provisions
If a trespasser counts as a tenant, the owner is routed into housing court and every fast option closes.
1 · C.R.S. § 13-40-104(1)(a) — unlawful detention defined (CRS 2025, Title 13)
“A person has committed an unlawful detention of real property in the following cases: (a) When entry is made, without right or title, into any vacant or unoccupied lands or tenements;”
Read where this sits. It is paragraph (a) of a list of grounds for an eviction action, and it is the only one addressed to a person who entered a vacant building with no right or title at all. It is not, however, the only ground that is not about a tenancy: (1)(b) is a wrongful entry onto public lands, tenements or mining claims, and (1)(f) to (1)(i) are about a purchaser after a sale under a power of sale, a purchaser after a judicial sale, an heir or devisee holding over, and a defaulting buyer under an agreement to purchase. Note what paragraph (a) does not contain: none of the ten-day, five-day or three-day written notices that paragraphs (d), (e) and (j) require of a landlord appear in it.
Read it at the source →2 · C.R.S. § 13-40-104(1)(c) — the tenant ground, for contrast (CRS 2025, Title 13)
“When any lessee or tenant at will, or at sufferance, or for any period of time, of any nonresidential real property or residential premises described in section 38-12-1302 (1)(a), (1)(b), (1)(d), (1)(e), or (1)(f), including a specific or undivided portion of a building, holds over and continues in possession of the nonresidential real property or residential premises described in section 38-12-1302 (1)(a), (1)(b), (1)(d), (1)(e), or (1)(f), or any portion thereof, after the expiration of the term for which the nonresidential real property or residential premises described in section 38-12-1302 (1)(a), (1)(b), (1)(d), (1)(e), or (1)(f) was leased or after the tenancy has been terminated by either party;”
A CLAIM ABOUT OUR OWN SEARCH, NOT ABOUT THE LAW: on 2026-07-14 we read C.R.S. §§ 13-40-101 through 13-40-123 in full in the Office of Legislative Legal Services' 2025 printout. We looked for a Colorado provision saying in as many words that a trespasser is not a tenant, or that the tenant-protection statutes do not reach one — the kind of sentence Missouri and Georgia wrote into their 2024 laws. We did not find one. What Colorado has is the structural separation above. Whether a person who was never anyone's tenant can nonetheless claim a tenant's protections is a question a Colorado court would answer, and it is not ours to answer. Confirm against the official code before relying on it.
Read it at the source →3 · C.R.S. § 13-40-109 — jurisdiction of courts (CRS 2025, Title 13)
“The district courts in their respective districts and county courts in their respective counties have jurisdiction of all cases of forcible entry, forcible detainer, or unlawful detainer arising pursuant to this article 40, and the person entitled to the possession of any premises may recover possession thereof by action brought in any of said courts in the manner provided in this article 40.”
These are the provisions, in order. We have not drawn a conclusion from them — that is not ours to draw.