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These Mansions Have Backyard Waterparks And Insane Pools

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Some backyards don’t have a pool — they have an entire water park, complete with lazy rivers and water cannon stations.

CNBC Make It went looking for the wealthiest expression of a swimming pool and came back with something closer to a private Six Flags. The 2019 feature, released under titles including “These Mansions Have Backyard Waterparks And Insane Pools” and “4 Mansions With Insane Waterpark Backyards,” tours four estates where the owners skipped the standard infinity pool and instead installed commercial-grade waterslides, grottos, and swim-up bars in their own yards.

• The CNBC Make It video profiles four private estates built around resort-style aquatic installations rather than the typical single backyard pool.
• One featured property houses a 750,000-gallon “party pool” outfitted with three giant waterslides, a functioning lazy river, and dedicated water cannon stations where guests soak each other.
• The estates use commercial-tier waterslide equipment, multi-level swimming systems, waterfalls, grottos, and swim-up bars — the same hardware found at public water parks, scaled down for private acreage.

A Backyard Built Like a Resort

What separates these properties from the usual celebrity-compound pool shot is the equipment list. These aren’t decorative water features — they’re commercial-grade waterslide installations, the kind engineered for public water parks, dropped into private multi-acre lots. CNBC’s cameras move through estates where the pool isn’t a single body of water but a system: upper pools feeding lower pools, waterfalls connecting levels, and a lazy river looping the whole property.

The swim-up bar has become almost a baseline expectation at this tier of construction, alongside grottos carved into rock formations that double as shaded lounging areas. It’s less “backyard pool” and more “private aquatic park,” which is exactly the phrase CNBC uses to frame the trend among ultra-wealthy homeowners pouring millions into these builds.

The 750,000-Gallon Centerpiece

The standout property in the video is built around a 750,000-gallon party pool — for scale, that’s roughly the volume of an Olympic swimming pool and a half. Three separate giant waterslides feed into it, an active lazy river runs the perimeter, and the estate includes dedicated water cannon stations where guests can blast each other during parties.

750,000 gallons, three waterslides, a working lazy river, and water cannons — built for a backyard, not a resort.

It’s the kind of installation that requires the same filtration, pumping, and structural engineering as a commercial attraction, just installed for a private homeowner instead of a paying public. That’s the throughline of the whole video: these aren’t pools with a slide bolted on, they’re full aquatic systems designed by the same engineers who build public water parks.

Drivers of Modern Home Construction

CNBC frames these installations as part of a broader trend among the ultra-wealthy — instead of adding a home theater or a wine cellar, the flex is now a functioning water park in the backyard. It tracks with a wider pattern in high-end residential design, where multi-acre lots get converted into amenity-stacked retreats rather than simple green lawns, something covered from a different angle in the tour of a $65 million Beverly Hills mega mansion.

The appeal is straightforward: a lazy river and three waterslides turn a private residence into a self-contained entertainment destination, no travel or ticket lines required. For homeowners weighing the cost of a standard pool against something more ambitious, the price comparisons in a breakdown of what a recreation pond actually costs give a sense of just how far beyond a normal backyard build these estates go.

None of these four properties are named celebrity addresses in the video — CNBC keeps the focus on the engineering and the scale rather than who signs the mortgage. That’s the point of the piece: this isn’t about one famous owner’s flex, it’s a documented shift in how the ultra-wealthy are spending on their own square footage, one water cannon station at a time.