Three-Season Room Addition in Springfield, IL — Costs $9,785 to $79,502
What does three-season room addition cost in Springfield? Average $30,578, ranging $9,785–$79,502. Labor runs $38.64/hr locally — 22% above the national average. Free breakdown with material + labor split.
Springfield, IL Market
+22% vs nationalLabor Rate
$38.64/hr
Material Index
117
Avg Permit Cost
$1,329
Median Home Price
$247,320
Springfield is a mid-sized city in Illinois with a healthy pool of local contractors. Homeowners generally have several options to compare for a three-season room addition, which helps keep pricing competitive. At 22% above the national average, Springfield 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 $247,320, homeowners in Springfield should weigh the project cost (12.4% of home value) carefully against expected returns to avoid over-improving for the local market.
Low Estimate
$9,785
National: $8,000
Mid-Range
$30,578
National: $25,000
High End
$79,502
National: $65,000
Per Sq Ft
$116
National: $95
Three-Season Room Addition Cost Calculator for Springfield
Adjusted for Springfield's labor rate ($38.64/hr) and material costs (index 117).
Mid-grade materials, good quality fixtures, standard options.
Estimated Total in Springfield
$30,578
Based on 200 sq ft at mid quality, adjusted for Springfield market rates.
Local Cost Breakdown
At Springfield's average rate of $38.64/hr (29% above national avg)
Material cost index 117 (17% above national baseline of 100)
Three-Season Room Addition vs. Home Value in Springfield
| Metric | Springfield | National Avg |
|---|---|---|
| Three-Season Room Addition (Mid-Range) | $30,578 | $25,000 |
| Median Home Price | $247,320 | $350,000 |
| Project as % of Home Value | 12.4% | 7.1% |
| Estimated ROI | 50% | 50% |
| Median Household Income | $49,307 | $75,000 |
What Affects the Price in Springfield
- 1Local labor rates ($38.64/hr in Springfield)
- 2Material cost index (117 vs national 100)
- 3Size
- 4Foundation type
- 5Screen vs window panels
- 6Roof style
Popular Upgrades
- Interchangeable screen and window panels
- Ceiling fans
- Outdoor-rated furniture
Other Projects in Springfield, IL
Second Story Addition
$245,800
Accessory Dwelling Unit (ADU) Construction
$184,350
Room Addition
$110,610
Swimming Pool Installation
$79,118
Home Addition
$97,848
Inground Swimming Pool
$78,735
Attic Conversion
$67,920
Swimming Pool Construction
$61,745
Three-Season Room Addition in Other Illinois Cities
Planning a Three-Season Room Addition in Springfield
Building permits are typically required for a three-season room addition in Springfield. The average permit fee in this area is $1,329, though costs vary based on project scope. Permit fees in this market are above average — factor them into your total budget. Plan for 2-4 weeks from start to finish.
A three-season room addition is a complex project best left to licensed professionals. In Springfield, skilled contractors charge an average of $38.64/hr, and the specialized nature of this work means cutting corners on labor can lead to costly rework.
In Springfield, where the median household income is $49,307, a $30,578 project requires careful budgeting. Look into home improvement loans, HELOC options, or local grants that may be available in Illinois.
Three-Season Room Addition — National Guide
See the full national cost guide with DIY tips, cost factors, and ROI analysis.
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