Dormer Addition in Boise, ID — Costs $14,866 to $74,331
What does dormer addition cost in Boise? Average $34,688, ranging $14,866–$74,331. Labor runs $30.25/hr locally — 1% below the national average. Free breakdown with material + labor split.
Boise, ID Market
-1% vs nationalLabor Rate
$30.25/hr
Material Index
97
Avg Permit Cost
$1,852
Median Home Price
$347,811
Boise is a mid-sized city in Idaho with a healthy pool of local contractors. Homeowners generally have several options to compare for a dormer addition, which helps keep pricing competitive. Boise offers slightly below-average renovation costs, giving homeowners a small cost advantage compared to most US markets. The median home in Boise is valued at $347,811, putting this project at about 10.0% of home value — a moderate investment with a projected 65% ROI.
Low Estimate
$14,866
National: $15,000
Mid-Range
$34,688
National: $35,000
High End
$74,331
National: $75,000
Per Sq Ft
$0
National: $0
Dormer Addition Cost Calculator for Boise
Adjusted for Boise's labor rate ($30.25/hr) and material costs (index 97).
Mid-grade materials, good quality fixtures, standard options.
Estimated Total in Boise
$33,300
Based on 200 sq ft at mid quality, adjusted for Boise market rates.
Local Cost Breakdown
At Boise's average rate of $30.25/hr (1% above national avg)
Material cost index 97 (3% below national baseline of 100)
Dormer Addition vs. Home Value in Boise
| Metric | Boise | National Avg |
|---|---|---|
| Dormer Addition (Mid-Range) | $34,688 | $35,000 |
| Median Home Price | $347,811 | $350,000 |
| Project as % of Home Value | 10.0% | 10.0% |
| Estimated ROI | 65% | 65% |
| Median Household Income | $80,749 | $75,000 |
What Affects the Price in Boise
- 1Local labor rates ($30.25/hr in Boise)
- 2Material cost index (97 vs national 100)
- 3Dormer type
- 4Size
- 5Structural changes
- 6Roofing
Popular Upgrades
- Shed dormer
- Gable dormer
- Bathroom in dormer
Other Projects in Boise, ID
Swimming Pool Construction
$49,554
Porch Addition
$24,729
Tile Roof Installation
$24,585
Cedar Shake Siding
$17,771
Second Story Addition
$197,833
Accessory Dwelling Unit (ADU) Construction
$148,375
Room Addition
$89,025
Home Addition
$78,980
Dormer Addition in Other Idaho Cities
Planning a Dormer Addition in Boise
Building permits are typically required for a dormer addition in Boise. The average permit fee in this area is $1,852, though costs vary based on project scope. Permit fees in this market are above average — factor them into your total budget. Plan for 4-8 weeks from start to finish.
A dormer addition is a complex project best left to licensed professionals. In Boise, skilled contractors charge an average of $30.25/hr, and the specialized nature of this work means cutting corners on labor can lead to costly rework.
With a median household income of $80,749, many Boise residents can budget for this project through savings. The mid-range cost of $34,688 represents 43% of the typical household's annual income.
Dormer Addition — National Guide
See the full national cost guide with DIY tips, cost factors, and ROI analysis.
All Construction Costs in Boise
View labor rates, material costs, and project estimates for Boise, ID.
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