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Homeowner cost guides

Multi-generational homes

A parent is moving in. The bathroom decides how well it goes.

Two generations sharing a house works or doesn’t largely on one room. What to change, what to leave, and what it costs.

Updated July 2026 6 min read Independent cost guide

Multi-generational households usually fail on logistics rather than on feelings, and the logistics are mostly bathrooms. One shared bathroom, two very different sets of needs, and a morning schedule that suddenly does not work.

Decide which bathroom is theirs

If the house has two, the single highest-value move is making the second one genuinely work for your parent rather than having everyone share the primary. That usually means converting a tub they do not use into a low-threshold shower they will.

If the house has one, the calculation changes: the bathroom has to work for a teenager in a hurry and for someone who wants a seat and a bar. That is doable, and it is mostly about choosing a build that does not announce itself.

What works for both generations

The build that works is the one nobody in the house experiences as a compromise.

What it costs

Converting a second bathroom’s tub to a low-threshold shower is $12,000 to $18,000. Doing the whole room — vanity, flooring, toilet, lighting on top of the wet area — starts around $19,000.

If you are doing this alongside other work to accommodate the move, get the bathroom quoted separately and itemized. It is the piece most likely to hit something behind the wall, and you want that priced on its own rather than buried in a whole-house number.

On timing

Do the bathroom before they move in if you possibly can. A two-to-three-day job with the bathroom out of service is very different when the person who needs it most is already living there.

See what your bathroom would actually cost

Answer six questions about your space and get a real price range for your project — not a teaser number. Then book a written, itemized quote with a company that works in your ZIP.

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One conversation worth having first

Ask your parent what they actually want in that room before anyone quotes anything. People moving into a child’s house are usually giving up a great deal of control already, and getting to choose the tile in the one room that will be theirs is not a small thing.

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