For many homeowners, the dream of backyard luxury includes not just a swimming pool but also a spa. The combination of both in one integrated design creates a retreat that is equal parts fitness centre, entertainment hub, and relaxation zone. A pool with spa offers the best of both worlds: the refreshing escape of a swimming pool and the therapeutic benefits of a spa, all conveniently located at home.
The rising popularity of pool-and-spa combinations is not surprising. Today’s households seek versatile outdoor living spaces that cater to different moods, occasions, and family needs. Some days you may want to swim laps for exercise, while on others, you might prefer to sit back in warm, bubbling water after a long day. With the right design and installation, one backyard feature can deliver all these experiences seamlessly.
Why Combine a Pool with a Spa?
Adding a spa to your swimming pool setup has several advantages beyond simple aesthetics. The two together create a multi-functional space that provides year-round value.
- Wellness Benefits – Swimming promotes cardiovascular fitness, strength, and endurance, while spa hydrotherapy eases sore muscles, reduces stress, and enhances relaxation.
- All-Season Enjoyment – Pools are perfect for summer, while heated spas can be used throughout winter, ensuring your investment gets year-round use.
- Entertainment Value – Guests, family, and friends enjoy the variety of options: children can play in the pool while adults unwind in the spa.
- Space Efficiency – Combo designs make the most of limited backyards by integrating two features into one cohesive layout.
- Increased Property Value – Homes with dual water features stand out in the real estate market, appealing to buyers who want luxury and lifestyle.
Design Options for Pool and Spa Combos
One of the exciting parts of planning a pool with a spa is the variety of design approaches available. Here are the most common styles:
- Integrated Spa – Built directly into the pool shell, often sharing water and heating systems. This creates a seamless look and optimises space.
- Attached Spa – Positioned adjacent to the pool with a spillway feature that allows water to flow from the spa into the pool, adding visual appeal.
- Detached Spa – A standalone spa located nearby, offering more flexibility in design but requiring separate heating and plumbing.
- Raised Spa – Elevated above pool level, often with cascading water features, this design adds drama and a focal point to the backyard.
- Infinity Spa – Perfect for luxury homes, where the spa has a vanishing edge that flows into the pool.
The choice depends on your budget, backyard size, and how you plan to use the space.
Key Features to Consider
When combining a pool with a spa, several features enhance comfort, safety, and enjoyment:
- Heating Systems – Essential for spas, but many homeowners extend heating to their pool for all-season swimming. Heat pumps, gas heaters, or solar systems are common.
- Hydrotherapy Jets – The spa’s signature feature, offering massage-like relaxation. Jets can be adjusted for intensity and direction.
- Lighting – LED lighting in both pool and spa creates ambiance and makes the area usable at night.
- Automation – Smart technology allows control of temperature, jets, and lighting through mobile devices.
- Safety Features – Slip-resistant steps, fencing, and covers are necessary for compliance and peace of mind.
- Seating and Tanning Ledges – Lounging options in both pool and spa areas increase comfort.
Installation Process
The construction process for a pool-and-spa combination follows similar steps to building a standard pool but with added systems for heating and water circulation.
- Consultation and Design – Determine shape, size, location, and integration style.
- Permits and Approvals – Local regulations require fencing, safety barriers, and plumbing compliance.
- Excavation – The site is dug to accommodate both the pool and spa.
- Base Preparation – Sand or gravel foundation ensures stability.
- Shell Installation – Pre-made fibreglass combo pools are delivered and placed in the excavation.
- Plumbing and Electrical – Separate or shared systems for the spa jets, heating, and filtration are installed.
- Backfilling and Stabilisation – The pool and spa are secured into the ground.
- Finishing Touches – Surround paving, decking, landscaping, and fencing complete the project.
- Commissioning – Water is filled, chemicals balanced, systems tested, and controls configured.
The installation timeline is typically three to six weeks, depending on complexity and weather conditions.
Cost Breakdown
The cost of a pool with spa varies widely depending on design, size, and extra features. Average prices in New Zealand are:
- Standard pool with integrated spa: $50,000 – $70,000
- Premium combo with raised spa and features: $75,000 – $100,000+
- Standalone pool and detached spa: $60,000 – $120,000 depending on design
Additional expenses include fencing, heating, decking, landscaping, and extras like water features or automation systems.
Maintenance Tips for a Pool with Spa
Maintaining a pool-and-spa system involves slightly more effort than a standard pool, but modern technology makes the process easier.
- Water Balance – Test chlorine, pH, and alkalinity at least once per week. Spas may require more frequent testing due to higher temperatures.
- Filter Cleaning – Ensure filters for both pool and spa are cleaned regularly to maintain water clarity.
- Surface Brushing – Keep surfaces free from debris and dirt. Fibreglass surfaces require minimal scrubbing.
- Spa Draining – Spas should be drained and refilled every 3–4 months to keep water fresh.
- Cover Use – Covers help retain heat, reduce evaporation, and keep out leaves and dust.
- Seasonal Checks – Inspect heating systems, pumps, and plumbing connections annually.
Health and Wellness Benefits
Owning a pool with spa provides a unique set of health advantages:
- Cardiovascular Fitness – Swimming is a low-impact, full-body workout suitable for all ages.
- Muscle Recovery – Hydrotherapy jets in the spa relieve muscle tension, making it ideal for athletes or those with physical stress.
- Stress Reduction – Warm water immersion promotes relaxation, improves sleep, and reduces anxiety.
- Joint Relief – Buoyancy in water eases pressure on joints, beneficial for arthritis or mobility issues.
- Family Wellness – Encourages active lifestyles for children and provides safe recreational space.
Entertainment and Lifestyle Benefits
Beyond health, pools with spas elevate social and family life. They become the centrepiece of outdoor entertainment, perfect for summer barbecues, birthday parties, or casual evenings with friends. Children enjoy endless hours of fun in the pool, while adults can enjoy sophisticated relaxation in the spa. This combination caters to everyone, ensuring your backyard remains a favourite gathering place.
Safety and Regulations
New Zealand pool safety regulations require fencing, self-closing gates, and in some cases, lockable spa covers. Spas should not exceed safe temperatures (typically 37–40°C) and should be monitored when children are present. Incorporating slip-resistant materials and ensuring proper supervision are essential parts of responsible ownership.
Trends in Pool and Spa Design
Backyard design is evolving rapidly, and pools with spas are at the forefront of luxury outdoor living. Some of the latest trends include:
- Minimalist Rectangular Pools paired with raised spas for sleek aesthetics.
- Infinity Edge Combos for resort-style luxury.
- Smart Pool Systems allowing temperature and lighting control from smartphones.
- Eco-Friendly Heating using solar panels and energy-efficient pumps.
- Multi-Level Decking integrating pools, spas, fire pits, and lounges into one space.
Frequently Asked Questions
Can the spa and pool share the same heating system?
Yes, integrated designs often use the same heating and filtration system, though this may affect efficiency if both are in use simultaneously.
How long does it take to heat the spa?
Depending on the system, spas typically heat within 30–60 minutes, while pools take longer.
Do pool-and-spa combos use more energy?
Yes, but energy-efficient heaters, solar systems, and covers help reduce costs.
How often should a spa be cleaned compared to a pool?
Spas need more frequent attention due to high water temperatures, which encourage faster chemical depletion.
Can I retrofit a spa to an existing pool?
Yes, though it requires additional excavation, plumbing, and heating systems. Fibreglass shell upgrades often make this feasible.
Final Thoughts
A pool with spa offers the ultimate backyard luxury, blending fitness, relaxation, and entertainment into one seamless package. With modern fibreglass designs, installation is quicker and more efficient than ever, while maintenance remains manageable thanks to smooth, non-porous surfaces and advanced systems. Whether you want to unwind after a busy day, exercise in your own backyard, or create a family-friendly gathering place, this combination delivers unmatched value.
If you are considering transforming your outdoor space, investing in a pool with spa is a decision that enhances both lifestyle and property value for years to come.