Tiny homes and ADUs (Accessory Dwelling Units) are more than just trending on Pinterest—they’re becoming a real housing solution in Colorado. Whether you're hoping to downsize, create a guest suite, or generate passive income through a short-term rental, adding a tiny structure to your property can be a game changer.
But here’s the big truth about going tiny in Colorado: it’s not as simple as parking one in your backyard. Let’s dive into the legal requirements, livability factors, and smart strategies to make your tiny home or ADU project a big success.
1. What’s the Difference Between a Tiny Home and an ADU?
These two terms are often used interchangeably, but there are key differences:
🏡 Tiny Homes
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Typically under 400 sq ft
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May be mobile (on wheels) or fixed on a foundation
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Must meet local building codes if used as a primary residence
🏠 ADUs (Accessory Dwelling Units)
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Secondary structures built on the same lot as a primary home
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Includes basement apartments, over-garage units, or separate tiny homes
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Requires formal permitting and zoning approval
2. Are They Legal in Colorado? Depends on the County
Colorado doesn’t have a one-size-fits-all answer to tiny homes or ADUs. Local zoning and land use codes control what’s allowed, and they vary widely.
🗺️ Examples:
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Denver: Allows ADUs in certain zones with size, height, and parking restrictions
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Jefferson County: Requires permanent foundation for tiny homes; mobile units not considered legal dwellings
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Gilpin & Clear Creek Counties: More flexibility in rural areas but still require septic and utility considerations
✔️ Always check with the county planning department before moving forward.
3. Key Legal Requirements to Consider
To make your tiny home or ADU legal, you may need to:
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Apply for building permits
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Ensure access to water, sewer/septic, and electricity
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Meet minimum square footage and foundation standards
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Maintain setbacks and lot coverage limits
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Comply with fire codes (especially in mountain zones)
📄 If you’re going mobile, your home may need to be HUD-certified or meet RVIA standards depending on how it’s used.
4. Livability: Small Space, Big Decisions
Tiny living is minimalist by nature—but it still needs to be functional.
🪴 Design tips for livability:
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Use multi-purpose furniture
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Emphasize natural light and vertical storage
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Prioritize outdoor space for breathing room
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Install high-efficiency appliances and consider solar panels
✨ Tiny homes can be beautiful, efficient, and surprisingly luxurious when designed right.
5. Why Buyers and Investors Love ADUs Right Now
ADUs are on the rise in Colorado for good reason:
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Provide multi-generational living options
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Create rental income from long-term or short-term tenants
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Boost resale value (if legally permitted)
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Offer flexible living for remote work, hobbies, or guests
We’re seeing more buyers actively looking for properties with existing ADUs or land that can legally support them.
Thinking Tiny? Plan Big.
Whether you're building a cabin in the woods, converting a garage, or dreaming of a sleek modern ADU in your backyard, doing it right means understanding your local rules, optimizing for livability, and working with a team that knows the landscape.
Let us help you go tiny—with confidence.
📞 Contact Us
🏡 Moxie Property Group
📞 (303) 578-1220
💻 [email protected]
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