Quick answer: A raised spillover spa is the most-requested integration; flush spas read sleek and modern. Size for the people who'll actually use it (5–6 person suits most homes), size the gas heater for a 20-minute warm-up, and build it with the pool — retrofits cost far more.

Ask our clients a year after handoff which feature they'd never give up, and the spa wins in a landslide — not the waterfall, not the lights, the spa. In Georgia it's the feature that makes the backyard a twelve-month space. Here are the real design options for integrating one, and the decisions that matter more than people expect.

The integration styles

• Raised spa with spillover — the classic: the spa sits 12–18" above the pool, spilling over a stone or tile edge. The height creates visual drama, the spill adds the water sound, and the raised wall doubles as pool seating. Our most-requested configuration.
• Flush (integrated) spa — spa and pool share one waterline, separated by a dam wall you can sit on. Sleek and modern — the pool reads as one sculptural shape. Pairs beautifully with clean-lined designs and infinity edges.
• Detached spa — same equipment pad, separate vessel — up on a terrace, closer to the house, or positioned for a view. On sloped lots this can be the move: pool below, spa at deck level outside the kitchen door.
• Spillover + cold plunge combo — the recent trend with staying power: a heated spa beside a small unheated plunge. Contrast bathing at home. If you're building anyway, the marginal cost is modest.

The decisions that actually matter

• Size honestly — a 7–8 person spa sounds right until you realize it's usually two of you. Bigger spas heat slower and cost more per soak; most couples are happier with a well-jetted 5–6 person spa that's hot in 20 minutes.
• Heater sizing is the experience — an underpowered heater means planning your relaxation an hour ahead. We size gas heaters for fast spa recovery (the spa is the main argument for gas — see the heating guide).
• Jets: placement over count — twelve well-placed jets beat twenty scattered ones. Tell us where your back actually hurts; that's a real design input.
• Automation makes it get used — "start the spa" from your phone on the drive home is the difference between a spa you use three times a week and one you use three times a year (smart controls handle it).
• Bench depth and step comfort — the unsexy details that decide whether an hour in the spa feels like an hour in a bathtub or a lounge chair. This is 3D-design territory.

Why the spa is Georgia's 12-month feature

Zone 8a gives us gorgeous Octobers and mild Januarys — spa weather, all of it. Football Saturdays in the spill of a hot spa, March evenings that would be two months too cold for the pool alone. A heated pool extends the season; a spa removes it. It's also the feature with the strongest resale pull (we ranked the field in features that add value).

Add it now or later?

Structurally integrated spas (raised, flush) are dramatically cheaper built with the pool — shared shell, shared plumbing runs, one gunite day. Retrofitting one later means construction all over again. If a spa is remotely in the picture, put it in the 3D design now, even if you phase the budget elsewhere. Full cost context: Georgia pool cost guide.

Frequently asked questions

How much does an integrated spa add to a pool project?

Meaningfully less than a standalone hot tub of comparable quality once you account for shared structure and equipment — and far more resale value. Exact numbers depend on size and finish; it's a visible line item in our itemized quote.

Can the spa run in winter with the pool winterized?

Yes — spa-only circulation is a standard configuration, and it's exactly how many clients use theirs December through February.

Gas or heat pump for the spa?

Gas for the spa's fast heat-up, and often a heat pump alongside for efficient pool-season heating — the hybrid setup gives you both behaviors.

Design it in 3D before you decide

CraftYourPool designs and builds custom in-ground pools across Northeast Georgia from our home base in Braselton — factory-direct pricing, a full 3D rendering of your actual backyard before you commit, and pool-ready in 6–8 weeks. See financing options or call (762) 425-9249 for a free consultation.

About the author

Brian Hemingway brings over 30 years of experience in the pool and outdoor-living industry and serves as a consultant and writer for CraftYourPool, a licensed Georgia residential contractor and certified Pentair installer building custom in-ground pools across Northeast Georgia. Questions about your project? Call (762) 425-9249.