An in-ground hot tub takes a backyard to the next level, giving you a spa to enjoy year-round even when temperatures cool, and a perfect spot for socializing or relaxing. One of the key steps in designing a pool and spa combination is deciding on placement. Here are the main options and how they work, drawn from spas we have built.

Two ways to combine a pool and spa

There are two main ways to combine your pool and spa: a spillover spa, or a spa on the same level as the pool. Both create a visual connection between the hot tub and pool, and both let you run one pump for the two, which is more efficient than a fully separate setup. A standalone spa set apart from the pool is also possible, but it needs its own circulation, which adds to the cost.

Spillover spas

A spillover spa sits higher than the pool and lets water flow over its edge into the water below. There are several ways to design that overflow, including single streams, multiple scuppers, or an infinity edge, and each one links the pool and spa visually while adding the relaxing sound of moving water.

Placement examples that work

A few real examples show the range. An infinity-edge spillover spa placed in the corner of an angular, modern pool lets water flow over uniformly, and stone tiles on the spa’s raised edge tie it to the deck and water features. A circular spillover spa that uses scuppers to feed an angular pool creates a striking contrast of shapes. And an infinity pool paired with a spillover spa turns the whole backyard into a showpiece, especially against a sunset view.

Placement for how you live

Beyond the pool connection, think about daily use: easy access from the house for cool evenings, privacy from neighbors, protection from prevailing wind, and a good view to soak toward. Pools by Design weighs all of these when siting a spa so the placement works in real life, not just on the plan, across Tucson and Southern Arizona.