What are the zoning regulations and permitting requirements for building an ADU in Denver, Colorado?

Zoning regulations and permitting requirements for building an ADU in Denver, Colorado, typically include restrictions on size, setbacks, height, and parking. Permits are usually required from the city's planning department, and compliance with building codes is essential.

What are the typical costs associated with constructing an ADU in Denver, including permits, materials, and labor?

The costs associated with constructing an ADU in Denver vary depending on factors such as size, materials, labor rates, and site conditions. On average, homeowners can expect to spend between $100,000 and $300,000 for a detached ADU, including permits and construction.

Are there any specific design guidelines or architectural styles that need to be followed when building an ADU in Denver?

Denver may have specific design guidelines or architectural styles that homeowners need to follow when building an ADU. These guidelines often focus on ensuring compatibility with the existing neighborhood character, including factors such as building materials, roof pitch, and exterior finishes.

How does adding an ADU affect property taxes and home insurance rates in Denver?

Adding an ADU can impact property taxes and home insurance rates in Denver. The increase in property value due to the addition of an ADU may result in higher property taxes. Homeowners should also notify their insurance provider about the addition of an ADU to ensure adequate coverage.

What are the advantages and disadvantages of building a detached ADU versus an attached ADU in Denver?

The decision between building a detached ADU versus an attached ADU in Denver depends on factors such as lot size, privacy preferences, and budget. Detached ADUs offer more privacy and flexibility in design but may require more space and be subject to stricter zoning regulations. Attached ADUs may be more cost-effective and easier to integrate into existing structures but may have limitations on layout and design.

Chic Coop ADU & Green House

ADUNew Construction

Apr 10

Written By Rachel Nagy

A05 | Project Summary

This charming stand-alone Tiny Home ADU in Denver, Colorado is a perfect blend of style, efficiency, and flexibility—making it an ideal retreat for Airbnb guests or long-term visitors.

Thoughtfully designed by NAGY Design, the space features a versatile open-plan layout that functions as both a living and sleeping area. A cozy loft adds vertical interest and additional sleeping space, while a modern 3-piece bathroom and fully equipped kitchen provide all the comforts of home in a compact footprint.

Whether you're looking to host short-term vacationers or create a private backyard retreat, this Denver ADU delivers a self-contained living experience that embraces smart design, comfort, and the charm of urban small-space living.

If you are interested in hiring us and our trusted team of experts to build an ADU for you… Let’s Talk!

280 sq. ft

College View, Denver

PrenValley Builders

2 Years

Architectural rendering of a modern accessory dwelling unit (ADU) in Colorado, designed by NAGY Design with gable roof, wood siding, and outdoor steps

ADU | NEW CONSTRUCTION

Signature Design Process

- Site analysis
- Existing conditions
- Budgeting
- Code review
- Contractor interviews negotiation
- Basic design concept generation
- 1-2 Iterations on a theme design evolution
- Plan approval to move forward to construction documents
- Detailed drawings
- 1 Major edit allowed
- Finish selection
- Permit comments
- Minimum of 3-5 site visits during construction
- Ensure the follow-through of the original design intent

Architectural designer Rachel Nagy partners with ADU Contractor in building a new home. NAGY Design showcases their ADU Homes in this schematic design.

Residential architect Rachel Nagy partners with expert home builders in building a new home. This schematic design is for a backyard ADU.

This schematic design, by NAGY Design, is for a backyard ADU. Residential architect Rachel Nagy partners with expert home builders in building a new home.

Architectural Services

New Construction

One Story ADU Tiny-House

Transformative Living/Sleeping Space

Loft Sleeping Area

Three Piece Bathroom

Full Kitchen and Dining Space

ADU | NEW CONSTRUCTION

Common Questions

Zoning regulations and permitting requirements for building an ADU in Denver, Colorado, typically include restrictions on size, setbacks, height, and parking. Permits are usually required from the city's planning department, and compliance with building codes is essential.
The cost of constructing a tiny home ADU in Denver can vary significantly based on factors like size, design, materials, and site conditions. On average, homeowners can expect to spend between $236,000 and $310,000 for a detached ADU, which includes permits, design, construction, and utility connections. Costs can increase depending on the complexity of the design, choice of materials, and the specific site conditions. Additionally, establishing separate utility connections may add to the overall budget.
Denver may have specific design guidelines or architectural styles that homeowners need to follow when building an ADU. These guidelines often focus on ensuring compatibility with the existing neighborhood character, including factors such as building materials, roof pitch, and exterior finishes.
Adding an ADU can impact property taxes and home insurance rates in Denver. The increase in property value due to the addition of an ADU may result in higher property taxes. Homeowners should also notify their insurance provider about the addition of an ADU to ensure adequate coverage.
The decision between building a detached ADU versus an attached ADU in Denver depends on factors such as lot size, privacy preferences, and budget. Detached ADUs offer more privacy and flexibility in design but may require more space and be subject to stricter zoning regulations. Attached ADUs may be more cost-effective and easier to integrate into existing structures, but may have limitations on layout and design.