Accessory Dwelling Unit (ADU) Construction in Jacksonville, FL — Costs $63,280 to $369,133
What does accessory dwelling unit (adu) construction cost in Jacksonville? Average $158,200, ranging $63,280–$369,133. Labor runs $32.08/hr locally — 5% above the national average. Free breakdown with material + labor split.
Jacksonville, FL Market
+5% vs nationalLabor Rate
$32.08/hr
Material Index
104
Avg Permit Cost
$935
Median Home Price
$316,529
As one of the largest metros in Florida, Jacksonville has a competitive contractor market with hundreds of licensed professionals. This typically gives homeowners more leverage on pricing, though high demand for renovations can offset that advantage. Costs in Jacksonville run slightly above the national average, though the gap is modest enough that smart material choices and timing can close it. The median home in Jacksonville is valued at $316,529, putting this project at about 50.0% of home value — a moderate investment with a projected 80% ROI.
Low Estimate
$63,280
National: $60,000
Mid-Range
$158,200
National: $150,000
High End
$369,133
National: $350,000
Per Sq Ft
$264
National: $250
Accessory Dwelling Unit (ADU) Construction Cost Calculator for Jacksonville
Adjusted for Jacksonville's labor rate ($32.08/hr) and material costs (index 104).
Mid-grade materials, good quality fixtures, standard options.
Estimated Total in Jacksonville
$158,200
Based on 200 sq ft at mid quality, adjusted for Jacksonville market rates.
Local Cost Breakdown
At Jacksonville's average rate of $32.08/hr (7% above national avg)
Material cost index 104 (4% above national baseline of 100)
Accessory Dwelling Unit (ADU) Construction vs. Home Value in Jacksonville
| Metric | Jacksonville | National Avg |
|---|---|---|
| Accessory Dwelling Unit (ADU) Construction (Mid-Range) | $158,200 | $150,000 |
| Median Home Price | $316,529 | $350,000 |
| Project as % of Home Value | 50.0% | 42.9% |
| Estimated ROI | 80% | 80% |
| Median Household Income | $53,074 | $75,000 |
What Affects the Price in Jacksonville
- 1Local labor rates ($32.08/hr in Jacksonville)
- 2Material cost index (104 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 Jacksonville, FL
Second Story Addition
$210,933
Room Addition
$94,920
Swimming Pool Installation
$68,363
Garage Addition
$58,007
Home Addition
$84,256
Inground Swimming Pool
$68,267
Attic Conversion
$58,087
Swimming Pool Construction
$52,807
Accessory Dwelling Unit (ADU) Construction in Other Florida Cities
Planning a Accessory Dwelling Unit (ADU) Construction in Jacksonville
Building permits are typically required for a accessory dwelling unit (adu) construction in Jacksonville. The average permit fee in this area is $935, 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 Jacksonville, skilled contractors charge an average of $32.08/hr, and the specialized nature of this work means cutting corners on labor can lead to costly rework.
For the median Jacksonville household earning $53,074/year, this project at $158,200 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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