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Cost to Add a Bathroom

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Adding an extra bathroom can be a great home improvement project that can help improve your home’s value and functionality. But how much does it cost to add a bathroom? In this blog post, we’ll explore the average cost of adding a bathroom, as well as some tips and things to consider before taking on this project.

Bathroom Addition and Its Benefits

The bathroom is one of the most significant rooms in the house. Not only is it a place where people can take care of their personal hygiene, but it is also a spot where people can relax and unwind.

It can add value to your home: A bathroom is one of the essential rooms in a house, so it makes sense that adding an extra bathroom would add value to your home.

It can make your home more functional: If you have a large family or entertain often, an additional bathroom can be a lifesaver. It can also make your home more accessible for people with disabilities.

It can make your home more comfortable: Having an additional bathroom means you won’t have to wait in line for the one bathroom in your house. It can be a huge relief, especially if you have young children or live in a busy household.

It can make a good investment: If you plan on selling your home in the future, an additional bathroom can be a selling point. It can also help you get a higher price for your home.

The Distinction Between a Half Bath and a Full Bath

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A half bath, also known as a powder room, is a small bathroom that typically contains only a sink and a toilet. It may also have a countertop or shelf for storing personal items. On the other hand, a full bath includes all amenities of a half bath, plus a shower or bathtub.

Full baths are typically placed in a home’s major living areas, such as the master bedroom or guest room because they are larger and more functional. On the other hand, half bathrooms are typically situated in more constrained areas, such as a hallway or under the stairs. For this reason, half baths are sometimes referred to as secondary bathrooms. Though they serve different purposes, half and full bathrooms play an essential role in the overall function of a home.

Factors That Affect the Cost to Add a Bathroom

The cost of adding a bathroom to your home will vary depending on several factors, including:

The bathroom size: The entire project cost will be significantly affected by the square footage of the bathroom area you have to work with.

The type of bathroom: As mentioned above, there is a distinction between a half bathroom and a full bathroom. A half bath is typically less expensive to add than a full bath, as it requires

The bathroom location: Adding a bathroom to an existing space, such as a spare bedroom or basement, will be less expensive than adding a new bathroom from scratch.

The type of bathroom: A simple half bath with just a sink and toilet will cost less than a luxurious master bathroom with a soaking tub and separate shower.

The fixtures and finishes: The type of fixtures and finishes you choose for your bathroom will also affect the cost. For example, adding a high-end toilet or sink will increase the cost, while choosing more budget-friendly options will keep the cost down.

The plumbing: The cost of adding a bathroom will also depend on the existing plumbing in your home. If your home doesn’t have any plumbing, or if the plumbing is outdated, you’ll need to factor in the cost of installing new pipes and fixtures.

The cost of labor: The cost of labor will vary depending on the location and type of bathroom you’re adding and the experience of the contractor you hire. Adding a bathroom from scratch will be more expensive than simply converting an existing space into a bathroom.

In most cases, the cost of adding a bathroom to your home will fall somewhere between $5,000 and $20,000. However, depending on the abovementioned factors, the cost to add a bathroom could be higher or lower than this range.

Cost of Converting Existing Space Into a Bathroom

Remodeling existing space into a bathroom is usually less expensive than adding a new bathroom from scratch. It is because you won’t need to install new plumbing or make any major structural changes to your home. Here is the average cost of converting some common areas of your home into a bathroom:

Converting a Spare Bedroom Into a Bathroom

A typical spare bedroom is about 150 square feet, while a typical bathroom is about 100 square feet. To remodel a spare bedroom into a bathroom, you would need to remove the existing walls and framing, as well as the door and window.

In addition, you would need to add new plumbing and electrical wiring, as well as install new fixtures. The total cost of the bathroom renovation would depend on the materials you use and the amount of labor required. However, you must budget at least $5,000-$8,000 for the job.

Converting a Closet Into a Bathroom

The cost of converting a closet into a bathroom will vary based on the size of the closet and the required features. However, most homeowners should budget between $3,000 and $5,000 for the project. The biggest expense will typically be the plumbing, which can range from $1,500 to $2,500.

Other significant costs include flooring, tiling, fixtures, and electrical work. If the closet is small, it may also be necessary to add ventilation or install a smaller toilet.

Converting a Basement Into a Bathroom

Most people don’t think about their basement until they need it for storage. However, this overlooked space has the potential to be renovated into a stunning and practical bathroom. The cost to remodel a basement into a bathroom varies depending on the size of the space and the finishing style you choose.

However, you can expect to pay between $3,000 and $10,000 for a typical project. While it could seem like a sizable expense, remember that the bathroom is one of your house’s most important rooms.

Converting a Laundry Room Into a Bathroom

If you have a laundry room that you never use, why not convert it into a bathroom? The cost of converting a laundry room into a bathroom will vary depending on the size of the space and the type of finishings you choose. However, most homeowners can expect to spend between $3,000 and $7,000 on the project.

The more expensive options for laundry room conversions include adding a shower or tub. However, you can still have a functional and attractive bathroom without these features.

Converting an Attic Into a Bathroom

Having an attic bathroom is a great way to make use of unused space in your home. However, remember that this type of renovation will almost certainly be more expensive than building a bathroom on another level of your home. It is because more work is typically involved in converting an attic into a livable space. The typical price to turn an attic into a bathroom is between $10,000 and $15,000.

The Cost of Building a New Bathroom From Scratch

If you don’t have any extra space in your home, you may need to add a new bathroom from scratch. While this kind of project may cost more than turning an existing space into a bathroom, it will also provide you with greater control over the plan and style of your new bathroom.

Here are some cost estimates for adding a bathroom from scratch:

Basic Bathroom (No Shower or Tub): $5,000 – $8,000

A basic bathroom addition is the cheapest and typically the quickest to install. This type of bathroom will include a toilet, sink, and vanity. It can be convenient when multiple people need to use the bathroom at the same time or if you want to have a place to brush your teeth without having to shower.

Mid-Range Bathroom (Shower Only): $8,000 – $10,000

Mid-range bathroom additions include a shower, toilet, sink, and vanity. This type of bathroom is ideal if you want the convenience of a shower without the hassle of a tub. It can also be a perfect option if you’re short on space.

High-End Bathroom (Shower and Tub): $15,000 – $20,000

If you have the budget, a high-end bathroom addition will include a shower, tub, toilet, sink, and vanity. It is the best option if you’re looking for a luxurious bathroom with all the bells and whistles.

Custom Bathroom: $20,000+

If you want a one-of-a-kind bathroom, you may need to have it custom-built. It is the most expensive option, but it will give you complete control over your bathroom’s layout and design. If you have unique needs or wishes that cannot be satisfied with regular bathroom addition, then this is an excellent alternative for you to consider.

Bathroom Material and Installation Costs

The cost to add a bathroom to your home will vary depending on the materials you use and the type of installation you choose. Here are some common material and installation costs associated with adding a bathroom:

Plumbing: $1,500 – $2,500

If you already have existing plumbing and simply need to add fixtures and finishes, your expenses will be on the lower side of the scale. However, if you need to run new plumbing pipes and make structural changes to your home, your plumbing labor costs will be significantly higher.

Electrical: $500 – $1,000

Electrical costs include running new wiring to the bathroom and installing outlets, switches, and fixtures such as light fixtures, exhaust fans, and towel racks. While it’s possible to do some of this work yourself, it’s generally best to leave electrical work to a professional to avoid any risk of injury or damage to your home.

Tile Flooring: $500 – $1,500

The cost of installing a tile in a bathroom will depend on your bathroom floor size and the type of tile you choose. You can anticipate paying between $5 – $10 per square foot for materials, plus an additional $2 – $4 per square foot tile for installation.

Drywall: $500 – $1,000

If you need to add or remove any walls to create your new bathroom, you’ll need to have drywall installed. The drywall installation cost will depend on the size of the space and the amount of work required. Expect to pay between $2 -$5 per square foot for materials and installation.

Backsplash: $200 – $500

A backsplash is the best way to add some style to your bathroom. It is a strip of tile or other material that is installed behind the sink and countertop to protect the wall from water damage. The cost of a backsplash will depend on the size of the space and the type of tile backsplash you choose. Materials and installation will cost you between $5 – $20 per square foot.

Lighting Fixtures: $200 – $800

The cost of installing lighting fixtures in a new bathroom varies according to the size of the space and the type of fixtures selected. For example, track lighting is a popular choice for small bathrooms because it is relatively inexpensive and easy to install. However, if you want something more dramatic, such as chandeliers or pendant lights, you can expect to pay more.

Toilet: $100 – $500

The price to install a toilet in a new bathroom varies depending on the toilet type and installation’s complexity. If you choose a standard gravity-fed toilet, the installation will be relatively straightforward and should not cost more than $200. If you select a pressure-assisted or dual-flush toilet, the installation will be more complex and typically cost between $350 and $500.

Shower: $300 – $1,000

The material you choose for the walls and floor will have the biggest impact on the price of your shower. Ceramic tile is the most popular choice for showers, but it is also the most expensive. Glass block or fiberglass are less costly options, but they may not provide the same durability or beauty as tile.

Tub: $500 – $2,000

There are wide varieties of tubs on the market; the design you select will affect your tub’s price and the installation cost. For example, a standard cast iron tub starts at around $500, jetted tub can cost between $1,000 and $2,000, a whirlpool tub begins at about $800, and a walk-in tub can cost upwards of $3,000.

Vanity: $200 – $1,000

The price of installing a vanity in a new bathroom varies based on the vanity’s size and style and the cost of materials and labor. For a basic vanity, you can expect to pay anywhere from $200 to $500. If you choose a more elaborate vanity with features like marble countertops or custom cabinets, you can anticipate paying upwards of $1,000. The expenses will also vary based on the complexity of the installation, but expert installation costs roughly $50 per hour.

Sink: $200 – $800

The type of bathroom sink you select for your new bathroom will also impact the overall cost. There are different sinks, and you can choose one that fits your bathroom and budget.

  • Pedestal sink: $200 – $500

  • Undermount sink: $250 – $700

  • Vessel sink: $300 – $800

  • Wall-mounted sink: $350 – $1,000

  • Drop-in sink: $400 – $850

  • Corner sink: $500 – $1,200

Choosing a Bathroom Addition Contractor

Any bathroom project is a large undertaking, so it is critical to take the time to locate the best contractor for you. Make sure you choose a reliable and experienced contractor. After all, this is a sizable financial investment in your property, and you want to ensure that the work is carried out appropriately.

When selecting a bathroom addition contractor, consider the following factors:

  • Examine whether the contractor is licensed and insured. It will protect you in case of any accidents or damage to your property during the renovation.

  • Ask for references from past clients. A good contractor should have a list of satisfied customers.

  • Be sure to get a detailed estimate of the costs involved in the renovation. It will assist you in staying within your budget and avoiding unpleasant surprises down the road.

  • Get multiple bids and compare them side by side. It will help you ensure you are getting the best value for your money.

  • Once you’ve decided on a contractor, make sure everything is in writing. It includes the projected cost of the project, the timeline for completion, and a detailed description of the work to be done.

Tips to Save Money on Adding a Bathroom

There are a few ways you can save money when adding a bathroom to your home:

  • Don’t be afraid to DIY some of the work: If you’re handy and have some experience with home renovations, you can do some of the work yourself to save money on major costs. Just be sure to research the project thoroughly before starting and to get any necessary permits.

  • Shop around for materials: Don’t be afraid to comparison shop for materials. Take time to shop around; you may be able to find better deals on products such as bathroom fixtures and tiles.

  • Reuse existing fixtures: If you’re renovating an existing bathroom, you may be able to reuse some of the fixtures like the sink, toilet, or tub. It can save you money on the overall cost of the project.

  • Consider a smaller bathroom: If you’re tight on budget, you may want to consider a smaller bathroom. A half bathroom (toilet and sink) or a three-quarter bath (toilet, sink, and shower) can be a great option if you’re short on space or budget.

  • Wait for sales: If you’re flexible with your timeline, you may want to wait for deals on materials and fixtures. Many stores have seasonal sales that can save you money on your project.


Adding extra a bathroom to your home is one of the best ways to boost its value and make it more usable. But before you start the project, it’s essential to do your research and understand the costs involved. By considering the guidelines provided in this article, you can be sure to keep within your budget while also getting a gorgeous new bathroom. Good luck!