Room Addition in Arlington, VA — Costs $54,162 to $309,500
What does room addition cost in Arlington? Average $139,275, ranging $54,162–$309,500. Labor runs $49.95/hr locally — 55% above the national average. Free breakdown with material + labor split.
Arlington, VA Market
+55% vs nationalLabor Rate
$49.95/hr
Material Index
143
Avg Permit Cost
$2,406
Median Home Price
$680,000
Arlington is a mid-sized city in Virginia with a healthy pool of local contractors. Homeowners generally have several options to compare for a room addition, which helps keep pricing competitive. At 55% above the national average, Arlington is one of the more expensive markets for home improvement — driven primarily by above-average labor rates in the region. With a median home price of $680,000, this room addition represents just 20.5% of typical home value — a relatively small investment that can significantly boost curb appeal or functionality.
Low Estimate
$54,162
National: $35,000
Mid-Range
$139,275
National: $90,000
High End
$309,500
National: $200,000
Per Sq Ft
$310
National: $200
Room Addition Cost Calculator for Arlington
Adjusted for Arlington's labor rate ($49.95/hr) and material costs (index 143).
Mid-grade materials, good quality fixtures, standard options.
Estimated Total in Arlington
$139,275
Based on 200 sq ft at mid quality, adjusted for Arlington market rates.
Local Cost Breakdown
At Arlington's average rate of $49.95/hr (67% above national avg)
Material cost index 143 (43% above national baseline of 100)
Room Addition vs. Home Value in Arlington
| Metric | Arlington | National Avg |
|---|---|---|
| Room Addition (Mid-Range) | $139,275 | $90,000 |
| Median Home Price | $680,000 | $350,000 |
| Project as % of Home Value | 20.5% | 25.7% |
| Estimated ROI | 55% | 55% |
| Median Household Income | $120,000 | $75,000 |
What Affects the Price in Arlington
- 1Local labor rates ($49.95/hr in Arlington)
- 2Material cost index (143 vs national 100)
- 3Square footage
- 4Foundation type
- 5Number of stories
- 6Roof integration
Popular Upgrades
- Cathedral ceiling
- En-suite bathroom
- Walk-in closet
Other Projects in Arlington, VA
Second Story Addition
$309,500
Accessory Dwelling Unit (ADU) Construction
$232,125
Swimming Pool Installation
$99,060
Garage Addition
$85,113
Home Addition
$122,860
Inground Swimming Pool
$98,296
Attic Conversion
$85,759
Swimming Pool Construction
$77,963
Room Addition in Other Virginia Cities
Planning a Room Addition in Arlington
Building permits are typically required for a room addition in Arlington. The average permit fee in this area is $2,406, though costs vary based on project scope. Permit fees in this market are above average — factor them into your total budget. Plan for 3-6 months from start to finish.
A room addition is a complex project best left to licensed professionals. In Arlington, skilled contractors charge an average of $49.95/hr, and the specialized nature of this work means cutting corners on labor can lead to costly rework.
With a median household income of $120,000, many Arlington residents can budget for this project through savings. The mid-range cost of $139,275 represents 116% of the typical household's annual income.
Room Addition — National Guide
See the full national cost guide with DIY tips, cost factors, and ROI analysis.
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