Accessory Dwelling Unit (ADU) Construction in Lafayette, LA — Costs $54,690 to $319,025
What does accessory dwelling unit (adu) construction cost in Lafayette? Average $136,725, ranging $54,690–$319,025. Labor runs $27.39/hr locally — 9% below the national average. Free breakdown with material + labor split.
Lafayette, LA Market
-9% vs nationalLabor Rate
$27.39/hr
Material Index
91
Avg Permit Cost
$814
Median Home Price
$212,733
Lafayette is a mid-sized city in Louisiana 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. Lafayette offers slightly below-average renovation costs, giving homeowners a small cost advantage compared to most US markets. At a median home price of $212,733, homeowners in Lafayette should weigh the project cost (64.3% of home value) carefully against expected returns to avoid over-improving for the local market.
Low Estimate
$54,690
National: $60,000
Mid-Range
$136,725
National: $150,000
High End
$319,025
National: $350,000
Per Sq Ft
$228
National: $250
Accessory Dwelling Unit (ADU) Construction Cost Calculator for Lafayette
Adjusted for Lafayette's labor rate ($27.39/hr) and material costs (index 91).
Mid-grade materials, good quality fixtures, standard options.
Estimated Total in Lafayette
$136,725
Based on 200 sq ft at mid quality, adjusted for Lafayette market rates.
Local Cost Breakdown
At Lafayette's average rate of $27.39/hr (9% below national avg)
Material cost index 91 (9% below national baseline of 100)
Accessory Dwelling Unit (ADU) Construction vs. Home Value in Lafayette
| Metric | Lafayette | National Avg |
|---|---|---|
| Accessory Dwelling Unit (ADU) Construction (Mid-Range) | $136,725 | $150,000 |
| Median Home Price | $212,733 | $350,000 |
| Project as % of Home Value | 64.3% | 42.9% |
| Estimated ROI | 80% | 80% |
| Median Household Income | $41,491 | $75,000 |
What Affects the Price in Lafayette
- 1Local labor rates ($27.39/hr in Lafayette)
- 2Material cost index (91 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 Lafayette, LA
Second Story Addition
$182,300
Room Addition
$82,035
Swimming Pool Installation
$59,228
Garage Addition
$50,133
Home Addition
$72,908
Inground Swimming Pool
$59,218
Attic Conversion
$50,141
Swimming Pool Construction
$45,583
Accessory Dwelling Unit (ADU) Construction in Other Louisiana Cities
Planning a Accessory Dwelling Unit (ADU) Construction in Lafayette
Building permits are typically required for a accessory dwelling unit (adu) construction in Lafayette. The average permit fee in this area is $814, 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 Lafayette, skilled contractors charge an average of $27.39/hr, and the specialized nature of this work means cutting corners on labor can lead to costly rework.
In Lafayette, where the median household income is $41,491, a $136,725 project requires careful budgeting. Look into home improvement loans, HELOC options, or local grants that may be available in Louisiana.
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 Lafayette
View labor rates, material costs, and project estimates for Lafayette, LA.
Explore All Project Cost Guides
Compare costs across 120+ home improvement projects in 3,636 cities nationwide.
View All Project Costs