Indoor swimming pool : what are the constraints what is the cost of construction ?

Being able to afford an indoor pool is le must since you can enjoy it at any time of the day and night, and in any season. It is therefore a profitable operation compared to a swimming pool in which one can only swim six or eight weeks a year at the most. Be careful, however, to respect all the constraints that this implies so as not to have any worries afterwards. Building an indoor pool also requires be well informed beforehand on the cost of construction because the budget to plan may turn out to be high.

Where to install your indoor pool?

All solutions are possible. For example, it is possible to plan its construction at the same time as that of the house, to transform part of the house already built into a space dedicated to the indoor swimming pool, although this solution generally costs more because the work can be more complex. But you can also opt for an extension of the existing house, including the installation of a swimming pool. In either case, this type of development increases the value of a property since the works were realized by a professional and therefore, in the rules of the art.

Indoor swimming pool: the necessary constraints

You don’t install an indoor pool without thinking about your project several months in advance. In addition to administrative procedures essential, all the conditions must be met to ensure the durability of the work and allow users to evolve in a healthy and pleasant environment. Here are the main unavoidable constraints:

  • The request for building permit compulsory for an extension greater than 20 m²: before even starting the construction site, it is compulsory to go to the town hall of your municipality to find out about the obligations which are necessary because this type of development generally involves a modification of the look of the house. It is therefore necessary to have the written agreement of the Town Planning Department and the Mayor before starting the work, otherwise you will have to dismantle everything in the event of refusal of the building permit.
  • A prior declaration of work sufficient for an extension with an area of ​​less than 20 m² or if the swimming pool is to be installed in an existing building, provided that neither its volume nor its exterior appearance are modified.
  • The ceiling height : it must be sufficient so that users can move upright around the pool but also because it allows better air circulation.
  • The ventilation : it must be ensured by a fairly powerful device, which does not dispense with equipping the room with windows and/or bay windows.
  • The dehumidifier : it is essential in this type of environment to preserve all the materials because it avoids excess humidity responsible for mold (and allergies).
  • The system of heater : an indoor swimming pool is likely to be used almost every day. It is more economical then to opt for a heat pump.
  • L’thermal insulation of the room: it is essential to enjoy the pleasures of swimming in all seasons. It should keep cool in summer and warm in winter. Good thermal insulation preserves the temperature of the water, which avoids wasting energy. It is also essential to limit the risk of a sudden rise in water temperature and therefore the appearance of algae.
  • L’soundproofing of the premises: this is also a crucial point to preserve the tranquility of the inhabitants of the house and that of the neighbourhood. The walls, ceiling, electrical equipment, bay windows, French windows and/or windows must be perfectly insulated.
  • The wall, floor and ceiling coverings : they must be compatible with an environment where the humidity rate is extreme.
  • The pool liner : we recommend the tiling rather than the liner because it resists less well in an indoor pool than in an outdoor pool.

Indoor swimming pool: what is the expected construction cost?

The costing of such a work can only be done on a case-by-case basis since it depends on different factors. The cost varies depending on whether the swimming pool is integrated into a house construction project or will be fitted out in an already existing house, or even requires planning an extension.

You have to think about taking everything into account. The extent of the work as well as that necessary if one wishes to build a veranda, for example, the fittings, the insulation, the type of swimming pool (kit, self-supporting, buried, i.e. shell or even concrete), the size of the pool of course, its shape, its depth, transport costs, accessories, the room’s dehumidification system and ventilation, but also the type of opening (XXL bay window or single door) are all points to consider for budget for an indoor pool. It is also necessary to take into account the difficulties of access to the construction site…

We recommend starting with use an indoor pool comparator online and to briefly describe their project in order to receive multiple quotes. But nothing can be decided without the professional having been able to travel to his client in order to carry out an on-site study and study the feasibility of the project. He can then send the person concerned a precise estimate according to the constraints, the type of pool desired and the level of sophistication of the facilities.

For your information, building an indoor swimming pool generally costs more than installing a swimming pool in the garden. The minimum budget required is around €26,000, and at least €50,000 for an indoor concrete pool. But for a luxurious project including an extension of the house, extraordinary fittings and a custom-made swimming pool, it can cost 80,000 € and even more.

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