What are the landlord-tenant laws in Boulder, Colorado?

Boulder landlords must follow Colorado state law covering security deposits (capped at 2 month(s) of rent, returned within 30 days), eviction notice requirements, rent increase rules, plus local rent control ordinances. Violations can result in penalties of $6,372+.

What is the maximum security deposit in Boulder?

Boulder landlords can charge up to 2 month(s) of rent as a security deposit. At the median 2BR rent of $2,124/month, the maximum deposit is $4,248. The deposit must be returned within 30 days after move-out.

How much notice is required for rent increases in Boulder?

Landlords must provide 30 days' written notice before raising rent. Failure to comply can void the increase.

Boulder · Colorado

Boulder, CO Landlord Laws 2026

Every housing law that applies to Boulder landlords — security deposits, eviction rules, rent increases, and more. Updated for 2026.

Based on Colorado state law + Boulder local ordinances.

Boulder Rental Market in 2026

$2,124

median 2BR rent

105,898

population

$4,248

max security deposit

Boulder landlords must comply with Colorado state landlord-tenant laws as well as local rent control ordinances. At a median 2-bedroom rent of $2,124/month, understanding deposit caps, notice periods, and eviction rules can save you thousands in penalties.

Local Housing Market Data

The HUD Fair Market Rent for a 2-bedroom in Boulder is $2,124/month, which affects Section 8 voucher amounts and affordable housing calculations.

Key Takeaways for Boulder Landlords

Security deposit: Capped at 2 month(s) of rent ($4,248 at median rent). Must return within 30 days or face penalties up to $6,372.
Local rent control: Boulder has additional local regulations beyond state law. See details below.

Colorado Laws That Apply in Boulder

Colorado Security Deposit Act

Colo. Rev. Stat. §38-12-101 et seq.

Governs security deposit collection, allowable deductions, and return timelines.

Colorado Warranty of Habitability Act

Colo. Rev. Stat. §38-12-501 et seq.

Requires landlords to maintain habitable conditions and provides tenant remedies including rent withholding.

Colorado Rental Application Fairness Act

Colo. Rev. Stat. §38-12-901 et seq.

Regulates rental application fees and screening practices.

Boulder Landlord Law Topics

Click any topic below for detailed Boulder-specific rules, deadlines, penalties, and free compliance tools.