Semi-inground swimming pool: advantages, disadvantages, construction price

The semi-inground pool is a good compromise between the above-ground pool and the in-ground pool. It’s a hybrid model available in different materials, models and shapes. It is highly coveted because it has many more advantages than disadvantages. Let’s discover the pluses and minuses of the semi-inground swimming pool and also see what budget to plan for its construction.

Main characteristics of the semi-inground swimming pool

This pool cannot be disassembled once the swimming season is over, unlike the above-ground pool. It is a swimming pool of which only a part is buried. It requires stabilization of the ground, but if we compare with the inground or buried swimming pool, the necessary earthworks for its installation are generally less important.

The ground slope is not at all a contraindication for this swimming pool because its base can be buried only partly or completely. In the latter case, it is simply necessary to provide for the planning of the ground area on which the basin will rest. It is therefore the ideal model if you own a slope or even a terraced land but which, in addition, is perfectly suited to flat land. The semi-inground pool can therefore be chosen in many configurations.

Advantages of the semi-inground swimming pool

Due to its many advantages, the in-ground swimming pool is more and more coveted and here is why.

  • Available in different shapes: round, oval, bean,, square, rectangular, octagonal, peanut …,
  • Available in various sizes: mini pool, large classic pool, swimming lane, the semi-inground pool can also be more or less deep,
  • Designed in various materials such as wood, concrete, metal or – as regards the semi-inground pool with shell – in resin and polyester,
  • There is a wide range of models allowing small budgets to still afford a beautiful swimming pool since prices start around € 1,200 excluding installation costs,
  • Concept best suited to very rough or very steep terrain,
  • Very robust,
  • Its access being in height, there is less risk of falls but it is nevertheless obligatory to install a security system,
  • Keeps water clean longer than in the case of an in-ground swimming pool,
  • Brings to the land a design note of the most beautiful effect once the surroundings of the semi-underground swimming pool have been completely fitted out: it lends itself to any type of arrangement such as beach, stairs to access the pool, solid wood terrace, slab, in natural stone, concrete or even composite wood, for example, to harmonize it with the style of the house,
  • Brings added value to the property and therefore enhances real estate assets,
  • Significantly reduces the amount of repair work – and therefore the cost – in the event of a basin leak.

It seems important to us to insist onobligation to secure your swimming pool even if it is semi-underground and therefore more difficult to access for young children. It only takes a few seconds of inattention for a little one to fall apart. The implementation of a security system does not exempt from being particularly vigilant.

Disadvantages of the semi-underground swimming pool

The semi-inground swimming pool has few disadvantages, but it is still useful to know them before carrying out your project. You should therefore know that:

  • Of demolition work are absolutely necessary to install a semi-inground swimming pool.
  • Due to its good reputation and the enthusiasm it generates with individuals, there are now more and more semi-underground models on the market, but some are not of excellent quality in terms of its design material. Do not hesitate to seek advice from a renowned pool specialist before investing so as not to regret your choice afterwards.
  • The semi-inground swimming pool is subject totaxation. Its construction must therefore obligatorily be declared, any omission leading to an adjustment.
  • Steps must be taken upstream since this pool cannot be dismantled. It should therefore be remembered that:
    • when the surface area of ​​the semi-underground swimming pool is less than 10 m², no action is necessary,
    • for a pool with an area between 10 and 99 m², a simple prior declaration of work is enough,
    • if the surface of the pool is 100 m² or more and the above-ground part is greater than 60 cm in height, a Request for a building permit is obligatory,
    • when you want to protect your semi-underground pool with a shelter, if the area of ​​the whole is greater than 20 m², you must apply for a building permit.

Regarding the procedures, it is necessary to inquire at your town hall because the town planning rules are specific to each municipality. The owner of land may be subject to specific restrictions.

Construction price of a semi-inground swimming pool

As we have seen previously, work is necessary to install a semi-buried swimming pool in its garden. In terms of financing, this is therefore added to the purchase price of the basin. These works are as follows.

  • The earthworks for :
  • Pour the slab : the semi-inground swimming pool is never placed directly on the ground. The concrete slab is fundamental for:
    • protect the pelvis, whether it is a shell or not,
    • avoid subsidence of the ground because once the basin is filled with water, this represents a significant weight.
  • The basin assembly if the landowner has opted for a kit model,
  • The positioning the semi-buried swimming pool on the concrete slab,
  • Sealing equipment and various accessories,
  • The connection all electrical devices (heating, filtration, etc.),
  • Lay the coating swimming pool,
  • Backfill, that is to say, fill the hole taking into account the structure of the semi-underground swimming pool. For this, either gravel or backfill is used,
  • Filling the basin, this is what we call the impoundment. So that the ground pressure on the buried part of the swimming pool does not cause any damage, the filling must be carried out immediately that the backfill is complete.

A soil analysis is necessary because its nature can sometimes complicate the work. Anyway, we understand that the price of construction of a semi-inground swimming pool should not be overlooked. It varies depending on the difficulties encountered during the construction site due to the configuration of the land and the nature of the soil. It is also related to the size of the pool because the larger the pool, the more important the work. It is always necessary request multiple quotes before launching operations. This makes it possible to compare the services and prices, these being calculated on a case-by-case basis.

For information, the construction price of a semi-inground swimming pool varies from 2,000 to more than 25,000 € depending on whether the model chosen is steel, wood or shell. If you do not have a sufficient budget, it is better to opt for an above-ground swimming pool which does not require any earthworks since the latter is simply placed on the ground.

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