How Much Does an ADU Cost in the Denver Metro Area?

Adding an Accessory Dwelling Unit (ADU) to your property can be an excellent investment, providing extra living space for family or an additional source of rental income. As a trusted builder specialized in creating custom homes and additions, Prospect 30 Eight Construction understands the importance of clear and upfront information about potential costs.

The cost of building an ADU in the Denver Metro Area varies depending on several factors including size, design, finishes, and the current condition of the property where the unit will be situated. On average, prices can range from $250,000 to well over $300,000. Below, we’re providing you with three sample estimates to help give you a clearer picture of potential costs.

3 Sample ADU Estimates

1. 3 Car Garage ADU Shell:
For a no-frills shell ADU we provide a solid foundation, walls, roof, windows and essential utilities.  The cost is typically around $250,000-$280,000.

2. 700 Sq. Ft. Detached ADU:
A one-bedroom detached ADU with mid-tier finishes and amenities, engineered flooring, mini split HVAC systems, and a gas fireplace, can be expected to range between $325,000 and $350,000.

3. 2 Car Garage 2nd Story ADU
A two-bedroom ADU above a 2 car garage with mid-tier finishes and amenities, engineered flooring and tile, mini split HVAC systems, fencing and a gate, can be expected to range between $350,000 and $380,000.

These estimates serve as a starting point as costs can fluctuate based on your specific requirements and desires for the space. At Prospect 30 Eight Construction, we take pride in using high-quality materials, employing exceptional craftsmanship, and ensuring that every ADU we build is a reflection of our commitment to excellence.

We understand how significant an investment like this is, and we remain transparent about costs throughout the process. Our award-winning team is available to discuss your project, provide you with a detailed and personalized estimate, and ensure your ADU meets your needs and aligns with your budget.

Embarking on the journey of adding an ADU to your home should be an exciting and rewarding experience. Remember that choosing the right builder is paramount. Our goal is to ensure that from our initial consultation to the final touches of construction, you feel confident and satisfied with your investment.