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Cost of Adding a Bathroom

Cost of Adding a Bathroom

Are you thinking of adding a bathroom on to your home? Whether you’re building a new addition to the house or are building a new bathroom in a part of another room, you are taking on a project that has a number of costs with it. Unlike remodeling or even adding on another bedroom or other space, adding a bathroom involves running new plumbing lines and making certain everything is watertight. While the costs do add up, you might be surprised at the final cost of such a renovation. If you’re thinking about adding on a bathroom, here are some things to realize about the cost.

A Basic Bathroom Isn’t That Expensive

First, don’t panic about the budget. Adding on a fairly basic bathroom isn’t that costly, especially if you’re taking space from an existing room. If you want a quarter or half-bath, you’ll find that $5,000 is a generous budget. Even if you’re adding in a shower and tub, that will still cover the costs of a basic bathroom. It won’t be extra-spacious, and it won’t feature high-end fixtures, but $5,000 will get you a functional bathroom. For those who have several people sharing a bathroom, that may be all you need to make mornings go much more smoothly.

Adding on Verses Remodeling

If you’re thinking about remodeling an existing bathroom instead of adding on a new one, note that remodels costs can actually be more expensive. On average, a bathroom remodel is between $8,000 and $14,000 due to demolition and other costs.

The Add-Ons Are the Costly Part

But what if you want more than a basic floor tile or a simple shower enclosure? This is where you’re going to start to see the costs of your additional bathroom go up. Running new plumbing lines is going to cost about the same no matter what you do. Even larger bathrooms don’t really cost that much more since you’re just running a few extra feet of pipe. It’s when you start looking at expensive backsplashes, all-glass enclosures, soaker tubs, and other spa-style fixtures that the costs greatly increase.

If you truly want a luxurious bathroom with everything you’d find at a high-end spa, you could spend as much as $75,000. That’s a lot of money, but it may be worth it if it lets you create the bathroom of your dreams.


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  • Angela Waterford
    August 7, 2019, 2:19 pm REPLY

    My husband is thinking of adding a bathroom to our home. I think it’s better to hire a renovation contractor for the job since basic bathrooms are just what we need to accommodate the guests. Thanks for the advice that add-ons are what will add to the cost of the renovation, so we might think about our options and see what we’ll agree on.

  • Randy Chorvack
    September 10, 2019, 9:40 am REPLY

    I’m so relieved that a small bathroom will only cost around $5,000 to build. My daughter is getting old enough that she wants her own bathroom, so I’ve been working out the logistics on doing that. Since it’s so little, I might be able to get the bathroom done by the end of the year.

  • Braden Bills
    September 20, 2019, 6:54 am REPLY

    I want to have a bathroom added to my home. It makes sense that I might need to get a professional to help me out with this! If I get a good plumber, at least I won’t have to worry about potential extra costs of improperly installing things.



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