Accessory Dwelling Unit (ADU) Construction in Dearborn, MI — Costs $58,500 to $341,250
What does accessory dwelling unit (adu) construction cost in Dearborn? Average $146,250, ranging $58,500–$341,250. Labor runs $30/hr locally — 2% below the national average. Free breakdown with material + labor split.
Dearborn, MI Market
-2% vs nationalLabor Rate
$30/hr
Material Index
95
Avg Permit Cost
$939
Median Home Price
$225,495
Dearborn is a mid-sized city in Michigan 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. Dearborn offers slightly below-average renovation costs, giving homeowners a small cost advantage compared to most US markets. At a median home price of $225,495, homeowners in Dearborn should weigh the project cost (64.9% of home value) carefully against expected returns to avoid over-improving for the local market.
Low Estimate
$58,500
National: $60,000
Mid-Range
$146,250
National: $150,000
High End
$341,250
National: $350,000
Per Sq Ft
$244
National: $250
Accessory Dwelling Unit (ADU) Construction Cost Calculator for Dearborn
Adjusted for Dearborn's labor rate ($30/hr) and material costs (index 95).
Mid-grade materials, good quality fixtures, standard options.
Estimated Total in Dearborn
$146,250
Based on 200 sq ft at mid quality, adjusted for Dearborn market rates.
Local Cost Breakdown
At Dearborn's average rate of $30/hr (at national avg)
Material cost index 95 (5% below national baseline of 100)
Accessory Dwelling Unit (ADU) Construction vs. Home Value in Dearborn
| Metric | Dearborn | National Avg |
|---|---|---|
| Accessory Dwelling Unit (ADU) Construction (Mid-Range) | $146,250 | $150,000 |
| Median Home Price | $225,495 | $350,000 |
| Project as % of Home Value | 64.9% | 42.9% |
| Estimated ROI | 80% | 80% |
| Median Household Income | $53,394 | $75,000 |
What Affects the Price in Dearborn
- 1Local labor rates ($30/hr in Dearborn)
- 2Material cost index (95 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 Dearborn, MI
Second Story Addition
$195,000
Room Addition
$87,750
Swimming Pool Installation
$63,050
Garage Addition
$53,625
Home Addition
$77,800
Inground Swimming Pool
$62,887
Attic Conversion
$53,763
Swimming Pool Construction
$48,875
Accessory Dwelling Unit (ADU) Construction in Other Michigan Cities
Detroit, MI
$179,650
Grand Rapids, MI
$161,575
Warren, MI
$147,025
Sterling Heights, MI
$144,900
Ann Arbor, MI
$170,800
Lansing, MI
$142,100
Clinton Township, MI
$174,350
Canton Township, MI
$171,750
Planning a Accessory Dwelling Unit (ADU) Construction in Dearborn
Building permits are typically required for a accessory dwelling unit (adu) construction in Dearborn. The average permit fee in this area is $939, 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 Dearborn, skilled contractors charge an average of $30/hr, and the specialized nature of this work means cutting corners on labor can lead to costly rework.
For the median Dearborn household earning $53,394/year, this project at $146,250 represents a significant investment. Consider financing options or phasing the work to spread costs over time.
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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