
Lagoon pool
An organic, resort-style shape with a rock waterfall and a pebble finish. It's the most natural-looking design in the set and the one that most needs space and landscaping around it.
$95k – $121k
- Size40 × 22 ft (adjustable)
- Water surfaceabout 703 sq ft
- Volumeapprox. 24,183 gal
- Example monthly~$1,094/mo
- Default finishPebble green
- Default deck & copingTravertine pavers · Flagstone
- Shown withColor LED lighting
*Planning estimates from our 3D designer for the pool itself (design, permits, excavation, steel, plumbing, gunite, plaster, coping and a narrow deck), including a safety margin. Spas, water features and bigger decks are extra. Example monthly payment is an illustration only (8.99% APR, 15 years), not a loan offer. A licensed builder confirms your price in writing after a site visit.
Large lots and owners who want a 'resort at home' look.
Options like spas, water features and outdoor kitchens are priced on your free consultation, where a licensed partner builder confirms everything in writing.
Is the Lagoon right for you?
This is the backyard for people who want the pool to vanish into a landscape, as if it were a mountain swimming hole with palms and boulders around it. It is the design for owners who plan to invest in planting and lighting too, not just the water.
Larger lots in inland valleys and hillside neighborhoods give it room to breathe. It suits families who like exploring, since the rock waterfall, boulder edges and curving shoreline give kids and adults different spots to claim.
How much yard it needs
This is the largest design at 40 by 22 ft. Doing the same math as the other pages, 22 ft of water plus about 8 ft of deck and a 5 ft buffer at the back property line is 35 ft deep, and 40 ft plus 10 ft of side setbacks is about 50 ft wide. Rockwork and planting beds usually need more than that, so a lot well beyond those numbers is more realistic. Expect the builder to check access for boulder delivery.
Spa, shelf and seating options
A spa built into the rockwork, with water pouring into the pool, looks natural here. A beach entry or wide sun shelf at the shallow end matches the lagoon look, and boulders at the edge can serve as jump rocks if the water below is deep enough and the builder approves it. A grotto behind the waterfall is a popular add.
Looking after it
Rock waterfalls and boulder edges trap leaves, and planting close to the water means more debris in the skimmer. Pebble finish is durable and hides some dirt, but its texture can hold algae if chlorine runs low. Budget extra time for brushing and leaf clearing, or ask about pool cleaning service. See finished examples in the gallery.
What the build involves
Lagoon builds take longer because the boulders, waterfall plumbing and planting beds are their own phases. Heavy rock needs a crane or loader and a clear path into the yard, and the shell has to be engineered to carry it. Plan landscape and lighting at the same time so irrigation and wiring go in before the deck.
Lagoon questions.
Didn't find yours? Send us a message or email [email protected]. A real person answers.
Are the waterfall rocks real stone?
What plants work around a lagoon pool in Southern California?
Can I add a grotto to the lagoon design?

See your pool before anyone digs.
Type your address. We model your yard in 3D, you pick a design, and you see an estimate before you give us your number.



