Infinity pools and overflow pools are often used interchangeably, but they're not the same thing. Both deliver dramatic, edgeless water effects — but the engineering, cost, and visual outcome differ.
Quick Comparison
| Feature | Infinity Pool | Overflow Pool |
|---|---|---|
| Edges with vanishing effect | 1 (or 2) | All 4 |
| Visual effect | Water disappears into horizon | Mirror-like surface from all sides |
| Best for | Properties with views (sea, skyline, valley) | Courtyard, rooftop, central pools |
| Cost premium vs skimmer | +50% to +80% | +60% to +100% |
| Engineering complexity | Medium-High | High |
What Is an Infinity Pool?
An infinity pool has one or two edges that drop away — water flows over a knife-edge weir, falls into a hidden catch basin (balance tank), and is recirculated back into the pool.
The vanishing edge creates the illusion that the water extends to infinity, ideal when paired with a sea, skyline, or valley view.
Best applications in Dubai:
- Palm Jumeirah villas facing the Arabian Gulf
- Emirates Hills villas overlooking the golf course
- Hillside or terraced properties
- High-rise rooftops with skyline views
What Is an Overflow Pool?
An overflow pool (also called deck-level or wet-edge pool) has water flowing over all four edges into a perimeter gutter. The water surface sits exactly level with the surrounding deck.
The result is a mirror-flat surface that reflects the sky and surroundings — extremely elegant, especially for night photography.
Best applications in Dubai:
- Courtyard pools in modern villas
- Rooftop pools without a defined view
- Hotel and resort showpiece pools
- Pools where the deck is the focal point
Engineering Differences
Both designs require a balance tank — a hidden reservoir that holds the displaced water when swimmers enter. Without it, water levels would constantly rise and fall.
Infinity pool engineering:
- Single (or twin) precision-levelled weir edge
- Catch basin behind the weir
- Pumps move water from balance tank back into pool
- Failure mode: weir level off by 2mm → uneven water flow
Overflow pool engineering:
- Slot drain or grated channel around full perimeter
- Larger balance tank required (more displaced water)
- More plumbing — return jets, perimeter drain, balance tank circulation
- Failure mode: any deck settlement causes uneven overflow
Cost Considerations
Infinity pools cost approximately 50–80% more than equivalent skimmer pools. Overflow pools cost 60–100% more because the perimeter slot system is more complex and uses more material.
For a 50 m² pool in Dubai:
- Skimmer pool: AED 120,000 – 200,000
- Infinity pool: AED 200,000 – 360,000
- Overflow pool: AED 220,000 – 400,000
Which Should You Choose?
Choose infinity if:
- You have a view worth showcasing
- Pool is positioned at the edge of a deck or terrace
- You want a dramatic single focal point
Choose overflow if:
- Pool is centred in a courtyard or rooftop
- You want a mirror-like surface effect
- Multi-directional viewing matters
Get Expert Advice
Both designs require experienced engineering. A poorly built infinity edge or unbalanced overflow gutter ruins the entire effect. We've built 100+ infinity and overflow pools across Dubai — contact us for a site assessment.