Accessory Dwelling Unit (ADU) Construction in Peoria, IL — Costs $70,810 to $413,058
What does accessory dwelling unit (adu) construction cost in Peoria? Average $177,025, ranging $70,810–$413,058. Labor runs $36.91/hr locally — 18% above the national average. Free breakdown with material + labor split.
Peoria, IL Market
+18% vs nationalLabor Rate
$36.91/hr
Material Index
113
Avg Permit Cost
$1,105
Median Home Price
$231,980
Peoria 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 18% above the national average, Peoria is one of the more expensive markets for home improvement — driven primarily by above-average labor rates in the region. At a median home price of $231,980, homeowners in Peoria should weigh the project cost (76.3% of home value) carefully against expected returns to avoid over-improving for the local market.
Low Estimate
$70,810
National: $60,000
Mid-Range
$177,025
National: $150,000
High End
$413,058
National: $350,000
Per Sq Ft
$295
National: $250
Accessory Dwelling Unit (ADU) Construction Cost Calculator for Peoria
Adjusted for Peoria's labor rate ($36.91/hr) and material costs (index 113).
Mid-grade materials, good quality fixtures, standard options.
Estimated Total in Peoria
$177,025
Based on 200 sq ft at mid quality, adjusted for Peoria market rates.
Local Cost Breakdown
At Peoria's average rate of $36.91/hr (23% above national avg)
Material cost index 113 (13% above national baseline of 100)
Accessory Dwelling Unit (ADU) Construction vs. Home Value in Peoria
| Metric | Peoria | National Avg |
|---|---|---|
| Accessory Dwelling Unit (ADU) Construction (Mid-Range) | $177,025 | $150,000 |
| Median Home Price | $231,980 | $350,000 |
| Project as % of Home Value | 76.3% | 42.9% |
| Estimated ROI | 80% | 80% |
| Median Household Income | $65,188 | $75,000 |
What Affects the Price in Peoria
- 1Local labor rates ($36.91/hr in Peoria)
- 2Material cost index (113 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 Peoria, IL
Second Story Addition
$236,033
Room Addition
$106,215
Swimming Pool Installation
$76,059
Garage Addition
$64,909
Home Addition
$94,012
Inground Swimming Pool
$75,733
Attic Conversion
$65,185
Swimming Pool Construction
$59,259
Accessory Dwelling Unit (ADU) Construction in Other Illinois Cities
Planning a Accessory Dwelling Unit (ADU) Construction in Peoria
Building permits are typically required for a accessory dwelling unit (adu) construction in Peoria. The average permit fee in this area is $1,105, 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 Peoria, skilled contractors charge an average of $36.91/hr, and the specialized nature of this work means cutting corners on labor can lead to costly rework.
For the median Peoria household earning $65,188/year, this project at $177,025 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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