Understanding the Cost to Add a New Bathroom

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5
minutes)
July 24, 2023
By
Robern Design Solutions

Adding a bathroom to your home is not merely an improvement project; it's a pledge to superior quality, practicality, and the pinnacle of individual opulence. The cost to add a bathroom relies on a variety of elements, including the complexity of the design, the size of the room, and your chosen materials.  

This extensive overview aims to help you understand the financial requirements of building a new bathroom.

How Much Does It Cost to Install a Bathroom?

calculations and graphs of new bathroom costs
By Yurii Kibalnik

According to data from Angi, the average price to add a bathroom ranges between $5,000 – $35,000 for existing spaces, although a new build or high-end bathroom with world-class features can cost much more. You may find yourself paying upwards of $75,000 for a new luxury bathroom.

Factors That Influence Bathroom Addition Costs

pink bathroom with wood furniture

The cost to add a bathroom to a house varies significantly depending on a variety of factors. For example, suppose you're considering adding a bathroom to an upper level of your house. In that case, the cost to install a new bathroom upstairs is typically between $8,000 – $35,000.  

Other important considerations include:

  • Square Footage: The size of your bathroom, typically measured in square feet, significantly influences the total cost of your project. The larger the space, the higher the cost. For a standard bathroom addition, the average cost per square foot is $200 – $300, while for a luxury addition, it is $450 – $600.
  • Features: If you desire your bathroom to have high-end features, it will cost you extra. For instance, a jetted tub or whirlpool can cost around $10,000, while vanities can cost anywhere from $500 – $5,000.
  • Location: The location of your new bathroom can also influence costs. Converting an existing space generally costs between $5,000 and $35,000, while the price range of a new build is typically $20,000 – $50,000. However, even within an existing space, costs can vary depending on whether it's a basement, attic, garage, or another room.  

These costs will be significantly influenced by the ease of extending plumbing and waste lines to a new location, and whether structural changes are required to accommodate the new bathroom.

Costs Vary by Type of Bathroom

marble bathroom with blue accent tiles

The exact type of bathroom you wish to install can also greatly influence the new bathroom build cost. Here's an overview of the average costs segmented by bathroom type:

  • Primary Bathroom: $35,000 – $100,000
  • Bathroom Extension: $20,000 – $70,000
  • Basement Bathroom: $8,000 – $15,000
  • Upstairs Bathroom: $8,000 – $35,000
  • Laundry Conversion: $5,000 – $12,000
  • Attic Conversion: $8,000 – $35,000
  • Garage Conversion: $8,000 – $25,000+
  • Bedroom Conversion: $15,000 – $50,000
  • Closet Conversion: $5,000 – $20,000
  • Splitting One Bathroom Into Two: $10,000 – $30,000

A Closer Look at the Components of Bathroom Addition Costs

calculator on top of blueprint plans
By Shawn Hempel

Several aspects contribute to the overall cost to add a bathroom. Let's delve into the individual elements and their associated costs that contribute to a bathroom addition project.

Plumbing

bathroom plumbing tools
By Tiko

The cost of plumbing, which includes installing water supply and drain lines, can fluctuate between $1,000 – $10,000, based on the project's complexity and location.

Electrical Work

To install lighting and other electrical components properly in your new bathroom, you might spend between $500 – $2,500.

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EXPLORE PRODUCTS

Shower Installation

bathroom with walk in shower and modern vanity

The cost to install a shower varies based on the shower type and the intricacy of the installation. This can range from $1,500 – $6,800.

Bathtub

white bathtub against a blue tile accent wall

The price for a bathtub can vary significantly based on the type of tub you select. You could spend between $1,100 – $5,900 for a standard bathtub, while a luxury model or whirlpool tub could cost more than $10,000.

Toilet

white toilet against a shiny black tile wall

Toilets vary in price based on design and functionality, but you'll generally spend between $200 – $550.

Sink Faucet

gold bathroom faucet on white countertop

A faucet is an important component for any bathroom, and generally cost between $150 – $350 for standard models, with luxury faucets in the $1,000 – $2,000 range.  

Drywall

The cost for installing drywall in your new bathroom can range from $1,000 – $2,500.

Tiling

contoured bathroom mirrors with two-cone sconce

Tiling costs can vary depending on the type of tile you choose and the square footage that needs to be covered. You could spend between $900 – $2,900 on this.

Light Fixtures

Lighting is vital in a bathroom, and depending on your choice of fixtures, you could spend between $150 – $900.

Vanity

white bathroom with wood vanity

A vanity, an essential bathroom furniture, can range from $500 – $3,800, with premium models costing even more.

Permits

Don't overlook the cost of permits for your bathroom addition, which can range from $50 – $2,000.

Navigating the Conclusion of Your Bathroom Addition Project

At the end of the day, understanding the intricacies involved in adding a new bathroom to your home is crucial. While the expenses may seem overwhelming at first, remember that a bathroom addition not only enhances the comfort and functionality of your home but can also increase its overall value. This makes the investment worthwhile in the long run. The important part is to plan carefully and stay informed about all the costs involved.

By factoring in the diverse elements that make up a bathroom addition project, such as the size of the bathroom, its features, and its location, you can get a rough idea of the overall cost. However, keep in mind that these are average estimates and the actual cost will depend on a variety of variables, including your location, the materials and fixtures you select, and the complexity of the project. To ensure a comprehensive understanding of these costs, it is advisable to obtain several quotes from contractors. This will give you a more precise cost estimate tailored to your specific project and prevent any unexpected surprises down the line.

Consider Hiring an Interior Designer

While you're at it, you might want to consider hiring an interior designer to ensure that your new bathroom not only functions well but also exudes style and harmony. Designers bring a creative and professional perspective to the project, helping to transform your vision into a well-planned and beautiful space.

The cost of an interior designer can vary greatly depending on their expertise and the scope of the project. However, they can provide invaluable guidance when it comes to selecting fixtures, color schemes, and layouts that work best for your bathroom addition.

To understand more about what interior designers bring to the table, check out this article on architecture vs. interior design. This article breaks down the unique roles and skills of each profession, helping you make an informed decision about whether to hire an architect, an interior designer, or both.

Additionally, to get inspired and understand the latest trends in interior design, you can explore some of the best interior design websites. These resources can help you visualize your ideas and provide a sense of what's possible for your new bathroom space.

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