Costs building swimming pond
Cost of building a swimming pond 2026
Building a swimming pond costs on average between €100 and €500 per m², depending on the size, filter zone, and desired finish. A swimming pond combines swimming pleasure with a natural look: the water is biologically purified by plants and bacteria instead of chlorine. In this price guide, you can read exactly what the costs for building a swimming pond are and what you should look out for.
Table of Contents
- What does it cost to build a swimming pond?
- Swimming pond costs per type
- Price-determining factors for a swimming pond
- Additional costs and surcharges
- How does the professional work when building a swimming pond?
- How can you save on building a swimming pond?
- Common problems with swimming ponds
- Find the best professional for building a swimming pond
- Frequently asked questions about building a swimming pond
- Book a professional for building a swimming pond
- Useful links
What does it cost to build a swimming pond?
The costs for building a swimming pond average between €150 and €650 per m², where the exact price depends on the complexity of your project and the chosen extra options. A standard swimming pond of 21 m² without additional facilities costs an average of €4,100. The total investment consists of approximately 65% labour and 35% material costs.
Cost overview building a swimming pond
| Type of project | Average costs |
|---|---|
| Building a swimming pond | €150 to €650 per m² |
| Heat pump | €3,700 |
| Hiring a professional via Zoofy | from €50 per hour |
The costs for a swimming pond are calculated per square metre, taking into account both the swimming area and the filter zone. The total area therefore largely determines your investment.
Filter system component costs
| Type of component | Average costs |
|---|---|
| Water plants | from €5 per piece |
| Lava stones | from €7 per piece |
| Sand filter | €400 |
The biological filter system forms the heart of your swimming pond. The plants and lava stones provide natural water purification, while the sand filter helps in purifying the water.
Extra swimming pond options
| Extra option | Average costs |
|---|---|
| Lighting | €300 to €1,500 |
| Heat pump | €3,700 |
| Diagonal steps | €2.300 |
| Sustainable wood terrace around | €50 to €100 per m² |
With extra facilities such as lighting or a heat pump, you can expand your swimming pond into a complete outdoor space that you can also use in the evenings and in early summer.
All mentioned prices include 21% VAT and labour.
Swimming pond costs per type
The costs for building a swimming pond mainly depend on the shape, the type of filter system, and any extras. A simple round swimming pond with a helophyte filter (plant-rich filter section with water plants and lava stones) is the most economical, while a rectangular variant with a sand filter, heat pump, and wooden terrace significantly increases the investment. Below you can see what different configurations cost.
| Type of swimming pond | Shape | Filter system | Extras | Costs per m² |
|---|---|---|---|---|
| Simple natural pond | Round | Helophyte filter | None | €100 to €150 |
| Classic swimming pond | Rectangular | Helophyte filter | None | €150 to €250 |
| Hybrid swimming pond | Rectangular | Sand filter + biological | None | €250 to €400 |
| Luxury swimming pond | Rectangular | Sand filter + biological | Heat pump, lighting | €400 to €500 |
| Premium swimming pond | Rectangular | Sand filter + biological | Heat pump, lighting, wooden terrace | €500 to €650 |
Price-determining factors for a swimming pond
The costs for building a swimming pond are influenced by various factors. Below you can read which aspects increase or decrease the price, and why.
Size and surface area
The price for a swimming pond is largely determined by the total surface area. A minimum size of 21 m² is required for optimal operation. Larger ponds require more earthmoving, more pond liner, and a larger filter system, which increases costs.
Ratio of swimming zone and regeneration zone
The regeneration zone must cover at least 50% of the total surface area for good water purification. With a 50/50 distribution, you pay for a larger total area than just the swimming part. A 40/60 distribution provides even better water quality but increases the investment further.
Depth zones
Different depth zones are necessary: shallow zones of 20-40 cm for water plants, medium zones of 80-120 cm for transition, and deep zones of 180-250 cm for swimming. Deeper zones mean more earthmoving, more pond liner, and more labour hours.
Soil conditions
Clay soil provides stability but is heavy to dig, which extends labour time. Sandy soil often requires extra reinforcement to prevent collapse. With high groundwater, drainage may be necessary. A soil survey beforehand prevents surprises and unexpected extra costs.
Location in the garden
The ideal spot has 5-6 hours of sunlight per day. Too much shade leads to cold water and limited plant growth, while too much direct sunlight stimulates algal bloom. An unfavourable location may require extra measures such as shade cloths or extra plants, which increases costs.
Accessibility of the workplace
Excavators and materials must be able to reach the workplace. With limited access, smaller machines or manual digging are required, which extends labour time and increases costs.
Electrical facilities
A swimming pond needs electricity for pumps and possibly lighting. If there is no existing connection nearby, a ground cable must be laid. Digging trenches and laying cables increases the total investment.
Pond liner quality
Pond liner lasts 15-30 years, depending on the quality. Higher quality material costs more to purchase but saves on long-term replacement costs and prevents leaks.
Water circulation and pump
The pump guides water through the regeneration zone for biological purification. An energy-efficient or frequency-controlled pump costs more but saves on electricity costs. The capacity must match the pond size, otherwise the system will not work optimally.
Skimmer or overflow system
This removes leaves and pollen from the water surface and prevents clogs. For ponds near trees, this is practically indispensable. Installing it costs extra but reduces maintenance time.
Safety measures
For families with children, extra costs may arise for screening, fencing, or gradual depth differences. This increases the investment but prevents accidents.
Urgency and planning
Urgent jobs cost more because the professional has to adjust their schedule. Weekend work is more expensive than during the week. Good planning prevents these surcharges.
Region
In large cities, prices are often higher than in rural areas due to higher overhead and labour costs.
Additional costs and surcharges
The costs for building a swimming pond can increase due to extra options and specific circumstances. At Zoofy, you pay no call-out charges.
- Lighting costs between €300 and €1,500, depending on the number of light points and type
- A heat pump for heating the swimming water costs on average €3,700
- A diagonal staircase costs approximately €2,300
- A wooden terrace around the pond costs between €50 and €100 per m²
- Extra excavation work for rock layers or high groundwater levels can result in additional costs
- Installing an electrical connection (ground cable) for pumps and lighting is often not included
- Urgent jobs have a surcharge because the professional has to adjust their schedule
- Weekend work is more expensive than weekday activities
How does the professional work when building a swimming pond?
Building a swimming pond follows a standard sequence from preparatory work to planting and adjustment.
- Preparation and design: The professional checks if a KLIC notification is needed and sets out the site. He makes a drawing that fits your wishes: rectangular or organically shaped, with or without a terrace and lighting. Excess soil is removed.
- Digging and depth zones: With an excavator, the soil is excavated according to the set dimensions. Different depth zones are created: shallow zones of 20-40 cm for water plants and deep zones of 180-250 cm for swimming.
- Liner and bottom finish: The professional first applies a protective cloth, followed by the pond liner. A layer of gravel or sand is placed on the bottom as protection and a habitat for beneficial bacteria.
- Technical installation and filling: The circulation pump is installed, possibly with a skimmer for surface cleaning. Electrical connections are laid. The swimming pond is filled with fresh tap water while folds in the liner are smoothed out.
- Finishing and planting: The edge is finished with wood or natural stone as desired. In the regeneration zone, various water and marsh plants are placed. The ecosystem then needs 4-8 weeks to balance before you can swim.
How can you save on building a swimming pond?
There are several ways to reduce the costs for a swimming pond without compromising on quality.
- Choose a helophyte filter: A natural filter system with water plants and lava stones is cheaper than a sand filter and works excellently for biological water purification.
- Round shape: A round swimming pond is more economical than a rectangular one because the edges do not need to be stabilised, which saves labour time.
- Preparation: Ensure the workplace is clear and accessible for excavators. Check beforehand via a KLIC notification if there are cables and pipes in the ground to prevent delays and extra costs.
- Timing: Do not book on the weekend or with urgency; weekday and planned work is more economical because the professional does not have to charge surcharges.
- Book via Zoofy: You get a fixed rate in advance, without call-out charges and without surprises. You only pay after completion of the job.
Common problems with swimming ponds
Problems with swimming ponds often have various causes, from too few plants to incorrect water circulation.
Cloudy water
Cloudy water usually occurs due to too many nutrients in the water, insufficient water plants, or an unbalanced ratio between the swimming zone and regeneration zone. This disrupts natural purification and leads to reduced swimming pleasure.
Algal bloom
Algal bloom occurs mainly in the spring when there is too much sunlight on the water and too few oxygen plants are present. The green water makes swimming unpleasant and can cause annoying odours.
Sludge formation
Too much organic material such as leaves and plant remains collects on the bottom and disrupts the biological balance. This reduces water quality and increases maintenance costs because the sludge must be removed once every three years.
Find the best professional for building a swimming pond
Building a swimming pond requires specialist knowledge of biological purification, water circulation, and planting.
- Experience with natural swimming ponds: Check if the professional has experience with natural swimming ponds and not just traditional swimming pools, as the costs and final result depend on correct biological purification.
- Guarantees on materials: Ask for guarantees on pond liner (often 10-20 years) and technical installations (usually 2-5 years) to prevent high repair costs later.
- Reliable professionals via Zoofy: At Zoofy, you book verified professionals who score an average of 9.2 and have experience building swimming ponds.
- No call-out charges: You never pay extra for the professional's arrival.
- Fixed price in advance: You know exactly what the costs are, without surprises afterwards.
- Fast booking without quote hassle: Book a professional directly and choose a time.
- Payment via QR code: You only pay when the job is done.
Frequently asked questions about building a swimming pond
Is a swimming pool more expensive than a swimming pond?
A traditional swimming pool often has lower construction costs than a swimming pond but requires higher maintenance costs due to chemicals and filters. The costs for a swimming pond are between €100 and €500 per m², while a concrete swimming pool often costs between €400 and €800 per m² including technical facilities.
How much does a swimming pond cost if you do it yourself?
If you build a swimming pond yourself, you pay between €50 and €150 per m² only for material costs such as pond liner, gravel, plants, and pumps. You save labour costs, but the project requires specialist knowledge of water circulation and biological purification.
How expensive is building a swimming pond?
The costs for a swimming pond vary from €100 to €650 per m², depending on shape, filter system, and extra options. A standard swimming pond of 21 m² with a helophyte filter costs an average of €4,100, including labour and material.
Is a permit required for a swimming pond?
This varies by municipality. For large surface areas, connection to surface water, or locations in protected areas, a permit may be required. Enquire with your municipality beforehand to prevent fines.
How long does it take for the water to become clear?
After construction, the ecosystem needs 4 to 8 weeks to balance. In the beginning, the water may be cloudy because bacteria and plants still need to establish themselves.
Can you swim in a swimming pond all year round?
Without a heat pump, the water is too cold in the winter. With a heat pump (approx. €3,700), you can extend the swimming season from April to October.
How much maintenance does a swimming pond require?
One major maintenance session per year for pruning plants and removing leaves is sufficient. Once every three years, the sludge must be removed, which increases maintenance costs.
How big should my garden be for a swimming pond?
A minimum surface area of 21 m² is advised for proper functioning. The regeneration zone must be at least 50% of the total for biological water purification.
Is a swimming pond safe for children?
With gradual depth differences and possibly a fence, a swimming pond can be made child-safe. These are extra costs to take into account.
How do I winterise my swimming pond?
Remove leaves in the autumn, place an ice-free device to allow gas exchange, and stop the pump during freezing periods to prevent freezing.
Book a professional for building a swimming pond
Ready to have a swimming pond built? At Zoofy, you book a professional directly, without quotes and without call-out charges. You see exactly what it costs beforehand, and Zoofy connects you with a reliable, verified professional. You only pay once the work is finished. Book a professional directly now.