Three-Season Room Addition in Frederick, MD — Costs $9,659 to $78,481
What does three-season room addition cost in Frederick? Average $30,185, ranging $9,659–$78,481. Labor runs $37.96/hr locally — 21% above the national average. Free breakdown with material + labor split.
Frederick, MD Market
+21% vs nationalLabor Rate
$37.96/hr
Material Index
116
Avg Permit Cost
$1,748
Median Home Price
$451,778
In a smaller market like Frederick, Maryland, the pool of contractors specializing in three-season room addition may be more limited. Getting 3+ quotes is especially important to ensure fair pricing. At 21% above the national average, Frederick is one of the more expensive markets for home improvement — driven primarily by above-average labor rates in the region. The median home in Frederick is valued at $451,778, putting this project at about 6.7% of home value — a moderate investment with a projected 50% ROI.
Low Estimate
$9,659
National: $8,000
Mid-Range
$30,185
National: $25,000
High End
$78,481
National: $65,000
Per Sq Ft
$115
National: $95
Three-Season Room Addition Cost Calculator for Frederick
Adjusted for Frederick's labor rate ($37.96/hr) and material costs (index 116).
Mid-grade materials, good quality fixtures, standard options.
Estimated Total in Frederick
$30,185
Based on 200 sq ft at mid quality, adjusted for Frederick market rates.
Local Cost Breakdown
At Frederick's average rate of $37.96/hr (27% above national avg)
Material cost index 116 (16% above national baseline of 100)
Three-Season Room Addition vs. Home Value in Frederick
| Metric | Frederick | National Avg |
|---|---|---|
| Three-Season Room Addition (Mid-Range) | $30,185 | $25,000 |
| Median Home Price | $451,778 | $350,000 |
| Project as % of Home Value | 6.7% | 7.1% |
| Estimated ROI | 50% | 50% |
| Median Household Income | $80,541 | $75,000 |
What Affects the Price in Frederick
- 1Local labor rates ($37.96/hr in Frederick)
- 2Material cost index (116 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 Frederick, MD
Second Story Addition
$242,533
Accessory Dwelling Unit (ADU) Construction
$181,900
Room Addition
$109,140
Swimming Pool Installation
$78,139
Home Addition
$96,592
Inground Swimming Pool
$77,796
Attic Conversion
$66,986
Swimming Pool Construction
$60,897
Three-Season Room Addition in Other Maryland Cities
Planning a Three-Season Room Addition in Frederick
Building permits are typically required for a three-season room addition in Frederick. The average permit fee in this area is $1,748, 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 Frederick, skilled contractors charge an average of $37.96/hr, and the specialized nature of this work means cutting corners on labor can lead to costly rework.
With a median household income of $80,541, many Frederick residents can budget for this project through savings. The mid-range cost of $30,185 represents 37% of the typical household's annual income.
Three-Season Room Addition — National Guide
See the full national cost guide with DIY tips, cost factors, and ROI analysis.
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