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By Alex Diaz · How we calculate this
There's a wide gap between a pool house that's basically a fancy shed and one that's a small guest suite. A simple open-air cabana with a roof and some storage runs $15,000 to $25,000. Add plumbing, a bathroom, and conditioned space and you're looking at $50,000 to $100,000 or more - the jump comes almost entirely from utilities and interior finish, not the basic structure.
These key factors affect pool house affordability
Size and amenity level
A bare cabana - roof, a few posts, storage for pool toys and towels - lands at $15,000 to $25,000. Add a bathroom, a changing area, and a small kitchenette and the same footprint can run $50,000 to $100,000 or more. Plumbing and conditioned interior space are what drive that gap, not square footage on its own.
Utility connections
Getting water, sewer, and electrical from the main house out to a detached pool house usually means trenching across the yard, and that alone can run $5,000 to $15,000 depending on distance and what's in the way - existing landscaping, irrigation lines, hardscaping. The farther the pool house sits from the house, the more that number climbs, so it's worth picking a spot near the existing utility lines before you fall in love with a location at the back of the lot.
Resale value and permits
Don't count on this paying for itself at resale the way a kitchen or bathroom remodel might - pool houses just don't recoup as much of their cost. Most municipalities also require a permit for any accessory structure over a certain size and enforce the same setback rules from the property line as any other outbuilding, and skipping that step can come back to bite you at insurance claim time or when you go to sell.
How to use your results
- A green result suggests you can consider a fully finished pool house with plumbing; a red result may point toward a simpler open cabana instead.
- Factor in ongoing costs like utilities, cleaning, and maintenance for the structure, not just the build price.
- Treat this mostly as a quality-of-life purchase rather than a home value investment when deciding how much to spend.
Ways to make a pool house more affordable
- Start with an open-air cabana and add plumbing and enclosed walls in a later phase if your budget allows it down the road.
- Locate the pool house as close as possible to existing water and electrical lines to cut trenching costs.
- Use the same contractor who built or maintains your pool, since they may bundle pool house work at a better rate.
- Skip a full kitchen in favor of a small wet bar or mini-fridge setup, which meets most needs at a fraction of the plumbing cost.
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