How Much Does It Cost to Add a New Bathroom in 2026?

How Much Is It to Add a Bathroom?

The cost to add a bathroom in 2026 depends on several factors: the type of bathroom (half vs. full), where it’s being added (like a basement or unused closet), and the finishes you choose. On average:

• Half Bathroom: Costs typically range from $8,000 to $15,000.
• Full Bathroom: Costs can range from $20,000 to $50,000 or more, depending on size, location, and luxury finishes.
• Basement Bathroom: Adding a bathroom in a basement may cost slightly more, often starting at $15,000, due to the extra plumbing challenges.

Let’s break this down further.

Cost Categories for Adding a Bathroom

Adding a bathroom involves more than just picking out pretty tiles (although that’s my favorite part). Here’s a closer look at the main cost components:

1. Design and Planning

This is where your vision becomes reality. Professional design services typically range from $1,000 to $5,000, depending on complexity. A well-thought-out design ensures your new bathroom looks stunning and functions perfectly. If you’re working with My Kitchen and Bath, we provide a completely free design consultations to help you choose layouts, materials, and finishes that fit your budget and style.

2. Demolition and Work Area Preparation

If you’re converting an existing space, like a closet, into a bathroom, demolition costs could range from $500 to $2,500. For new additions, site preparation might involve structural work, which can increase costs.

3. Plumbing Cost to Add a New Bathroom

Plumbing is one of the most significant costs in a bathroom project. For a half bath, expect plumbing costs of $2,000 to $5,000, while a full bath could range from $5,000 to $15,000, especially if you’re installing a tub and shower. Basements can be trickier, requiring pumps or ejector systems to handle drainage.

4. Electrical Works

Adding outlets, lighting, and ventilation will cost between $1,000 and $3,000. Bathrooms often require GFCI outlets and dedicated circuits, which can add to electrical expenses.

5. Drywall and Painting Costs

Once plumbing and electrical work are complete, drywall installation and painting come next. Costs usually fall between $1,000 and $2,500, depending on the size of the space.

6. Tile & Tile Installation Costs

This is where you can make your new bathroom truly unique. Tile materials range from $3 to $30 per square foot, while installation costs average $10 to $20 per square foot. If you’re adding a custom shower or decorative backsplash, factor in higher costs.

7. Bathroom Fixtures

Fixtures are the heart of your bathroom, and the costs can vary widely. Here’s a breakdown:

• Vanity and Faucet: $500 to $3,000+
• Toilet: $200 to $1,500
• Shower Fixture/System: $500 to $5,000
• Shower Door: $600 to $2,000
• Lighting and Mirror: $200 to $2,000
• Bathroom Fan & Ventilation: $200 to $800

8. Labor Costs

Labor typically accounts for 40% to 60% of your total budget. Skilled professionals, including plumbers, electricians, and tile installers, are essential to getting the job done right.

9. Permitting and Inspection

Don’t forget the paperwork! Permits and inspections are non-negotiable for any major renovation. Costs range from $500 to $2,000, depending on your location.