Accessory Dwelling Unit (ADU) Construction in Arlington, VA — Costs $92,850 to $541,625
What does accessory dwelling unit (adu) construction cost in Arlington? Average $232,125, ranging $92,850–$541,625. 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 accessory dwelling unit (adu) construction, 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 accessory dwelling unit (adu) construction represents just 34.1% of typical home value — a relatively small investment that can significantly boost curb appeal or functionality.
Low Estimate
$92,850
National: $60,000
Mid-Range
$232,125
National: $150,000
High End
$541,625
National: $350,000
Per Sq Ft
$387
National: $250
Accessory Dwelling Unit (ADU) Construction 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
$232,125
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)
Accessory Dwelling Unit (ADU) Construction vs. Home Value in Arlington
| Metric | Arlington | National Avg |
|---|---|---|
| Accessory Dwelling Unit (ADU) Construction (Mid-Range) | $232,125 | $150,000 |
| Median Home Price | $680,000 | $350,000 |
| Project as % of Home Value | 34.1% | 42.9% |
| Estimated ROI | 80% | 80% |
| 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)
- 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 Arlington, VA
Second Story Addition
$309,500
Room Addition
$139,275
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
Accessory Dwelling Unit (ADU) Construction in Other Virginia Cities
Planning a Accessory Dwelling Unit (ADU) Construction in Arlington
Building permits are typically required for a accessory dwelling unit (adu) construction 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 6-18 months from start to finish.
A accessory dwelling unit (adu) construction 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 $232,125 represents 193% of the typical household's annual income.
Accessory Dwelling Unit (ADU) Construction — National Guide
See the full national cost guide with DIY tips, cost factors, and ROI analysis.
All Construction Costs in Arlington
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