Bathroom Addition Cost
Adding a bathroom to a home that only has one or two significantly improves livability and resale value. The closer to existing plumbing, the lower the project cost.
Low Estimate
$20,000
Mid-Range
$45,000
High End
$90,000
Avg ROI
58%
Interactive Cost Estimator
Mid-grade materials, good quality fixtures, standard options.
Estimated Total Cost
$45,000
Based on 200 sq ft at mid quality. Actual costs vary by location and contractor.
Cost Breakdown
Approx. $24,750 at mid-range pricing
Approx. $20,250 at mid-range pricing
Labor-heavy projects (with high labor costs) benefit most from getting multiple contractor bids. You can save on materials-heavy projects by sourcing materials yourself at contractor pricing.
What Affects the Price
- 1Location (new vs converted space)
- 2Plumbing distance
- 3Full vs half bath
- 4Fixture quality
- 5Structural changes needed
Popular Upgrades
- Walk-in shower
- Double vanity
- Heated floors
Discuss upgrades with your contractor before finalizing the quote. Some upgrades are cheaper to include during initial construction than to add later.
DIY vs. Hire a Pro
Professional installation strongly recommended.
DIY Advantages
- • Save 55% on labor costs ($24,750 at mid-range)
- • Control over timeline and material selection
- • Satisfaction of completing the project yourself
- • Flexibility to work in phases
Pro Advantages
- • Guaranteed workmanship and professional finish
- • Proper permits and code compliance
- • Access to trade pricing on materials
- • Required for safety and code compliance
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