Accessory Dwelling Unit (ADU) Construction in Des Moines, IA — Costs $50,480 to $294,467
What does accessory dwelling unit (adu) construction cost in Des Moines? Average $126,200, ranging $50,480–$294,467. Labor runs $25.28/hr locally — 16% below the national average. Free breakdown with material + labor split.
Des Moines, IA Market
-16% vs nationalLabor Rate
$25.28/hr
Material Index
84
Avg Permit Cost
$1,008
Median Home Price
$219,264
Des Moines is a mid-sized city in Iowa with a healthy pool of local contractors. Homeowners generally have several options to compare for a accessory dwelling unit (adu) construction, which helps keep pricing competitive. Des Moines is well below the national average for renovation costs, making it a favorable market for homeowners considering a accessory dwelling unit (adu) construction. At a median home price of $219,264, homeowners in Des Moines should weigh the project cost (57.6% of home value) carefully against expected returns to avoid over-improving for the local market.
Low Estimate
$50,480
National: $60,000
Mid-Range
$126,200
National: $150,000
High End
$294,467
National: $350,000
Per Sq Ft
$210
National: $250
Accessory Dwelling Unit (ADU) Construction Cost Calculator for Des Moines
Adjusted for Des Moines's labor rate ($25.28/hr) and material costs (index 84).
Mid-grade materials, good quality fixtures, standard options.
Estimated Total in Des Moines
$126,200
Based on 200 sq ft at mid quality, adjusted for Des Moines market rates.
Local Cost Breakdown
At Des Moines's average rate of $25.28/hr (16% below national avg)
Material cost index 84 (16% below national baseline of 100)
Accessory Dwelling Unit (ADU) Construction vs. Home Value in Des Moines
| Metric | Des Moines | National Avg |
|---|---|---|
| Accessory Dwelling Unit (ADU) Construction (Mid-Range) | $126,200 | $150,000 |
| Median Home Price | $219,264 | $350,000 |
| Project as % of Home Value | 57.6% | 42.9% |
| Estimated ROI | 80% | 80% |
| Median Household Income | $48,302 | $75,000 |
What Affects the Price in Des Moines
- 1Local labor rates ($25.28/hr in Des Moines)
- 2Material cost index (84 vs national 100)
- 3Attached vs detached
- 4Size and bedroom count
- 5Kitchen and bath quality
- 6Local ADU regulations
Popular Upgrades
- Full kitchen
- Separate entrance
- Solar panels for energy independence
Other Projects in Des Moines, IA
Second Story Addition
$168,267
Room Addition
$75,720
Swimming Pool Installation
$54,669
Garage Addition
$46,273
Home Addition
$67,296
Inground Swimming Pool
$54,661
Attic Conversion
$46,281
Swimming Pool Construction
$42,073
Accessory Dwelling Unit (ADU) Construction in Other Iowa Cities
Planning a Accessory Dwelling Unit (ADU) Construction in Des Moines
Building permits are typically required for a accessory dwelling unit (adu) construction in Des Moines. The average permit fee in this area is $1,008, though costs vary based on project scope. Permit fees in this market are above average — factor them into your total budget. Plan for 6-18 months from start to finish.
A accessory dwelling unit (adu) construction is a complex project best left to licensed professionals. In Des Moines, skilled contractors charge an average of $25.28/hr, and the specialized nature of this work means cutting corners on labor can lead to costly rework.
In Des Moines, where the median household income is $48,302, a $126,200 project requires careful budgeting. Look into home improvement loans, HELOC options, or local grants that may be available in Iowa.
Accessory Dwelling Unit (ADU) Construction — National Guide
See the full national cost guide with DIY tips, cost factors, and ROI analysis.
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