AccessoryDwellingUnitExperts ES 📞 (815) 860-2798

Accessory dwelling unit permit cost — Denver, CO

Looking for accessory dwelling unit permit cost in Denver, CO? Call AccessoryDwellingUnit Experts for a contact a provider — no obligation. Licensed adu builders serve Denver and the surrounding area, and you'll get straight answers on timing and what affects the price.

Last updated: September 24, 2026

What affects the price

Building an ADU is a major project, and the final bill depends on a few key things. Site prep is a big factor; if your land is sloped or needs extensive utility connections, costs go up. The materials you choose—from siding to kitchen finishes—also change the math significantly. Whether you’re building a detached unit or converting an existing garage shifts the permit requirements and structural work needed. We provide exact pricing confirmed free on the call.

Frequently asked in Denver

What are the disadvantages of ADUs in Denver?

One disadvantage can be navigating Denver's specific zoning and building codes, which can be complex. Another consideration is the potential impact on existing utilities and parking availability. The initial construction costs can also be a barrier for some homeowners. However, understanding these upfront helps manage expectations.

How much does an ADU permit cost in Denver?
What are the rules for ADUs in Denver?

Denver has specific rules regarding ADU size, setbacks, and lot coverage. Generally, ADUs must be located on lots with an existing single-family home. There are also requirements for owner occupancy and separate utility meters. We can walk you through the exact regulations that apply to your property.

Can I build an ADU on any lot in Denver?

Most single-family zoned lots in Denver can accommodate an ADU, but there are size and placement restrictions. Factors like lot width, depth, and the presence of existing structures are important. We'll assess your specific lot to see if it meets Denver's requirements for an ADU.

What's involved in getting an ADU permit in Denver?

The process typically involves submitting detailed building plans and zoning applications to the city. You'll need to demonstrate compliance with all Denver building codes and zoning ordinances. This can include structural, electrical, and plumbing plans. We simplify this for you.

Are there ADU grants available in Denver?

While specific grant programs can change, Denver has explored initiatives to encourage ADU development. It's worth checking with the city's planning department for any current incentives. We can also discuss financing options that might be available for your project.

Also serving nearby: Aurora · Thornton · Centennial · Westminster · Lakewood

All cities in Colorado →

More on this: HUD ADU resources — ADU policy and financing research.

Service area details

716,577residents
4,681per sq mile
8ZIP codes served

Serving all of Denver — population 716,577; about 4,681 residents per square mile across 153.1 sq mi. ZIP codes covered include 80201, 80202, 80203, 80204, 80205, 80206, 80207, 80208.

Neighborhoods served in Denver: Capitol Hill, LoDo, RiNo, Cherry Creek, Uptown, Highlands — and every surrounding area.

Areas we serve

Browse by state, then city.

Alabama (4)
Alaska (1)
Arizona (9)
Arkansas (1)
California (29)
Colorado (4)
District of Columbia (1)
Florida (10)
Georgia (2)
Hawaii (1)
Idaho (1)
Illinois (2)
Indiana (2)
Iowa (1)
Kansas (2)
Kentucky (2)
Louisiana (3)
Massachusetts (2)
Michigan (2)
Minnesota (2)
Missouri (3)
Nebraska (2)
Nevada (4)
New Jersey (2)
New Mexico (1)
New York (4)
North Carolina (7)
Ohio (4)
Oklahoma (2)
Oregon (3)
Pennsylvania (2)
Rhode Island (1)
South Dakota (1)
Tennessee (6)
Texas (16)
Utah (1)
Virginia (5)
Washington (4)
Wisconsin (2)