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ADU / Guest House Cost in South Dakota

ADU / Guest House in South Dakota costs $150$360 per sq ft in 2026. A typical 500 sq ft project averages $117,500. South Dakota is in the Midwest region, where labor and materials run on the average end of national pricing.

Reviewed by , Founder & Cost Analyst, BuildCost

Last updated

Quick Answer

How much does an adu / guest house cost in South Dakota? An adu / guest house in South Dakota costs $75,000$180,000 in 2026, with most homeowners paying around $117,500 for a typical 500 sq ft project.

Per sq ft
$150$360
Typical range
$75,000$180,000
Average
$117,500
Labor share
52%

South Dakota Average Cost (2026)

$75,000$180,000
Average: $117,500 for a 500 sq ft project
South Dakota is in the Midwest region. The Midwest offers near-average labor costs with competitive contractor markets in most metro areas.

Cost Breakdown

Economy
$75,000
Basic materials, competitive bids
Standard
$117,500
Mid-grade materials, avg contractor
Premium
$180,000
High-end finishes, experienced crew
Est. labor: $61,100
Est. materials: $56,400

Based on a 500 sq ft project in the Midwest region. Actual costs vary by contractor, site conditions, and material choices.

ADU / Guest House Cost by Size in South Dakota

South Dakota pricing for common adu / guest house project sizes (2026).

Project sizeLowMidHigh
250 sq ft$37,500$58,750$90,000
500 sq ft$75,000$117,500$180,000
1,000 sq ft$150,000$235,000$360,000

Based on $150$360 per sq ft in the Midwest region.

Financing Calculator

Estimate your monthly payment based on loan type and current rates.

$
%
Estimated Monthly Payment
$1,441.17/mo
10 year Home Equity Loan at 8.25% APR
Total Interest Paid
$55,440
Total Amount Paid
$172,940

Rates shown are approximate averages as of 2025 and will vary based on your credit score, lender, and loan-to-value ratio. Consult a lender for an accurate quote.

Return on Investment

How much value does a adu / guest house add to your home at resale?

41%
Below average return · Accessory Dwelling Unit
of project cost
recouped at resale
Project Cost
$117,500
Value Added
+$48,175
Net Cost
$69,325
$
ROI is higher in markets with housing shortages. Rental income can significantly improve effective returns.

How ADU / Guest House compares to other projects

ADU / Guest House
41%
Kitchen Remodel
113%
Wood Deck
95%
Bathroom Remodel
80%
Flooring
80%
Window Replacement
76%

ROI figures based on Remodeling Magazine Cost vs. Value Report 2024, national averages. Actual resale value depends on your market, home price tier, and project quality.

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Frequently Asked Questions

How much does an adu / guest house cost in South Dakota?

In South Dakota, a typical 500 sq ft adu / guest house project costs between $75,000 and $180,000, with a mid-range average of $117,500. South Dakota is in the Midwest region.

How much is labor for an adu / guest house in South Dakota?

Labor accounts for approximately $61,100 of the total cost for a 500 sq ft adu / guest house project in South Dakota. The Midwest offers near-average labor costs with competitive contractor markets in most metro areas.

How do I find a contractor for an adu / guest house in South Dakota?

Get at least 3 quotes from licensed local contractors, verify their license with South Dakota's contractor licensing board, and check reviews on Google or the BBB. Use our free estimate tool to understand fair pricing before you negotiate.

Does an adu / guest house add value to your home in South Dakota?

On average, an adu / guest house recoups about 41% of its cost at resale nationwide. For a $117,500 project in South Dakota, that's approximately $48,175 in added home value. Actual ROI varies by neighborhood and market conditions.

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How big is your ADU / Guest House?

A studio ADU is ~300 sq ft. A 1-bed ADU is ~500 sq ft. A 2-bed ADU is ~700–900 sq ft.

sq ft

Pro Tips

  • Get at least 3 contractor quotes
  • Ask about permit requirements
  • Budget 10–20% contingency
  • Check contractor licenses

Find a ADU / Guest House Pro Near You

Get free quotes from top-rated local pros. No obligation.

Sponsored — BuildCost may earn a referral fee at no extra cost to you. This site connects you with independent service professionals through a third-party matching platform.

🏠

Ready to Hire a ADU / Guest House Contractor?

Use your estimate to get competitive bids from licensed local contractors. Getting multiple quotes is the best way to avoid overpaying.

Local contractor matching coming soon.