Adding an Accessory Dwelling Unit (ADU) to your property is one of the smartest ways to expand your living space or generate rental income, but navigating local zoning laws often feels overwhelming. At Trio Construction, we help homeowners across the Denver metro area transform their single-family properties with bespoke, high-end design. With recent shifts in local land-use laws, building an Additional Dwelling Unit may be much easier than you think.
Am I legally allowed to build an ADU on my lot?
How Colorado House Bill 24-1152 Expands ADU Rights
Thanks to landmark Colorado legislation—House Bill 24-1152—many historic zoning hurdles have been permanently removed across the Front Range. Under this law, qualifying municipalities must permit ADUs by right on properties zoned for single-family detached homes. This means you generally no longer have to fight through lengthy public hearings or special-use permits just to get permission to build. Instead, projects move forward through a streamlined administrative review process.
Understanding Setbacks, Heights, and Bulk Plane Rules
While House Bill 24-1152 opens the door for ADUs, local municipal codes still govern how your structure takes shape. Design rules like property line setbacks, maximum height allowances, and bulk plane restrictions remain in full effect. A bulk plane is an invisible legal envelope that prevents your new building from blocking natural light or privacy for neighboring lots. Balancing these structural boundaries requires precise architectural planning.
Evaluating Utilities and Site Conditions for Your Build
Beyond zoning height and border restrictions, your property’s physical infrastructure plays a critical role in legal feasibility. ADUs require dedicated connections or certified capacity for water, sewer, and electrical lines, alongside clear emergency access pathways. Evaluating your lot's soil, existing main sewer lines, and electrical panel limits early ensures your design avoids costly site development surprises down the line.
Why Working with an Experienced ADU Contractor Matters
Designing a compliant, luxurious ADU demands more than just standard construction knowledge—it requires navigating complex utility tie-ins, foundation requirements, and local building codes. As a dedicated ADU contractor, Trio Construction handles every technical detail with meticulous care. We ensure your new space seamlessly matches the architectural character of your primary home while maximizing every square foot of your lot.
Discover What Is Legally Possible for Your Lot
Ready to explore your property's full potential? Trio Construction offers a Free Feasibility Assessment where we analyze your specific GIS and zoning data to determine exactly what can be built before you spend a dime. Contact our expert team today to schedule your consultation.