Affordable accessory dwelling unit

Looking for affordable accessory dwelling unit in Sioux Falls, SD? Call AccessoryDwellingUnit Pros for a contact a provider — no obligation. Licensed adu builders serve Sioux Falls 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 custom project, so costs vary based on your specific choices. Site conditions are the biggest factor; if your land requires significant grading, utility extensions, or foundation work, those expenses add up quickly. Choosing high-end finishes, custom cabinetry, or complex roof lines will also push the budget higher compared to a standard design. Prefabricated units often offer predictable costs, while custom site-built structures allow for more flexibility but can be harder to estimate upfront. Exact pricing confirmed free on the call.

About this service

Affordability in backyard homes often comes down to choosing efficient designs and standardized floor plans. By selecting a model that fits your existing utility footprint and requires minimal site excavation, you can keep your budget manageable. Exact pricing confirmed free on the call.

Frequently asked in Sioux Falls

What are the disadvantages of ADUs in Sioux Falls?

Potential downsides include the initial construction costs and any impact on your yard. You should also consider how an ADU might affect your property taxes. It's wise to weigh these aspects carefully. Get a detailed assessment by calling for a quote.

How much does an ADU cost in Sioux Falls?

What are the rules for ADUs in South Dakota?

South Dakota state law allows for ADUs, and Sioux Falls has its own local zoning ordinances. These typically address lot size requirements, setbacks from property lines, and maximum unit size. Compliance is essential. The pros we work with understand these regulations.

Can I build an ADU on my Sioux Falls property?

Generally, yes, but it depends on your specific lot size and zoning. Sioux Falls has regulations regarding accessory structures. A qualified pro can visit your property to confirm feasibility and discuss requirements.

How do I get an ADU permit in Sioux Falls?

You’ll need to submit detailed building plans to the city's planning department for review and approval. This ensures your ADU meets all safety and building codes. Experienced professionals can help streamline this process for you.

What's the typical construction time for an ADU in Sioux Falls?

Building an ADU usually takes several months from the initial design through to completion. This timeframe includes the design phase, securing permits, and the actual construction. Weather can sometimes affect the schedule. Request a project timeline estimate when you call.

Also serving nearby: Omaha · Lincoln · Bloomington · Minneapolis · Des Moines

All cities in South Dakota →

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

Service area details

206,410residents

2,496per sq mile

8ZIP codes served

Serving all of Sioux Falls — population 206,410; about 2,496 residents per square mile across 82.7 sq mi. ZIP codes covered include 57101, 57103, 57104, 57105, 57106, 57107, 57108, 57109.

Neighborhoods served in Sioux Falls: Downtown Sioux Falls, Augustana, The Cathedral District, All Saints, Tea — and every surrounding area.