Accessory Dwelling Unit (ADU) Construction in Aurora, IL — Costs $69,530 to $405,592
What does accessory dwelling unit (adu) construction cost in Aurora? Average $173,825, ranging $69,530–$405,592. Labor runs $41.63/hr locally — 16% above the national average. Free breakdown with material + labor split.
Aurora, IL Market
+16% vs nationalLabor Rate
$41.63/hr
Material Index
93
Avg Permit Cost
$1,867
Median Home Price
$260,000
Aurora is a mid-sized city in Illinois 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. At 16% above the national average, Aurora is one of the more expensive markets for home improvement — driven primarily by above-average labor rates in the region. The median home in Aurora is valued at $260,000, putting this project at about 66.9% of home value — a moderate investment with a projected 80% ROI.
Low Estimate
$69,530
National: $60,000
Mid-Range
$173,825
National: $150,000
High End
$405,592
National: $350,000
Per Sq Ft
$290
National: $250
Accessory Dwelling Unit (ADU) Construction Cost Calculator for Aurora
Adjusted for Aurora's labor rate ($41.63/hr) and material costs (index 93).
Mid-grade materials, good quality fixtures, standard options.
Estimated Total in Aurora
$173,825
Based on 200 sq ft at mid quality, adjusted for Aurora market rates.
Local Cost Breakdown
At Aurora's average rate of $41.63/hr (39% above national avg)
Material cost index 93 (7% below national baseline of 100)
Accessory Dwelling Unit (ADU) Construction vs. Home Value in Aurora
| Metric | Aurora | National Avg |
|---|---|---|
| Accessory Dwelling Unit (ADU) Construction (Mid-Range) | $173,825 | $150,000 |
| Median Home Price | $260,000 | $350,000 |
| Project as % of Home Value | 66.9% | 42.9% |
| Estimated ROI | 80% | 80% |
| Median Household Income | $64,800 | $75,000 |
What Affects the Price in Aurora
- 1Local labor rates ($41.63/hr in Aurora)
- 2Material cost index (93 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 Aurora, IL
Second Story Addition
$231,767
Room Addition
$104,295
Swimming Pool Installation
$72,349
Garage Addition
$63,736
Home Addition
$90,876
Inground Swimming Pool
$70,862
Attic Conversion
$64,994
Swimming Pool Construction
$59,086
Accessory Dwelling Unit (ADU) Construction in Other Illinois Cities
Planning a Accessory Dwelling Unit (ADU) Construction in Aurora
Building permits are typically required for a accessory dwelling unit (adu) construction in Aurora. The average permit fee in this area is $1,867, 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 Aurora, skilled contractors charge an average of $41.63/hr, and the specialized nature of this work means cutting corners on labor can lead to costly rework.
For the median Aurora household earning $64,800/year, this project at $173,825 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.
All Construction Costs in Aurora
View labor rates, material costs, and project estimates for Aurora, IL.
Explore All Project Cost Guides
Compare costs across 120+ home improvement projects in 3,636 cities nationwide.
View All Project Costs