The inground pool market in France is structured around budgets that often range between 15,000 and 60,000 euros. The online content available generally stops at this range.
Beyond that, around 100,000 euros, we enter a segment where technical and aesthetic choices change radically. The pool is no longer just a garden feature: it becomes a full architectural project, with expenditure items that standard pricing grids do not cover.
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Custom Shotcrete: the Technical Foundation of an Inground Pool at This Budget
At 100,000 euros, the question of material is no longer really an issue. The polyester shell, even high-end, reaches its limits of customization beyond certain dimensions and shapes. Shotcrete (or gunite) remains the reference technique for custom pools in this price segment.
This process allows for the design of free forms, submerged beaches, gradual depth variations, or integrated benches. The structure adapts to the terrain and not the other way around, which opens the door to installations on slopes, at angles, or along existing terraces.
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The share of the major works (earthworks, concrete structure, waterproofing) represents a significant fraction of the total budget. Choosing options for a luxury inground pool implies understanding that it is the quality of this base that determines the longevity of the pool over several decades.
Infinity Pool and Lagoon Pool: Two Concepts That Absorb the Budget Differently
Two types of construction compete at the high end of this price range, and they do not involve the same technical items.
The Overflow and Its Dedicated Hydraulic Circuit
A high-end infinity pool frequently falls between 50,000 and 100,000 euros depending on the dimensions and complexity of the site. The additional cost compared to a classic pool does not come from the lowered edge itself, but from the buried catch basin, the oversized lift pump, and the water level regulation system.
On a sloped lot with an unobstructed view, the visual effect is spectacular. On a flat lot, the result may disappoint relative to the investment. Therefore, the choice of overflow should be guided by the topography of the land as much as by personal taste.
The Lagoon Pool, a Complete Landscaping Project
Lagoon pools (free forms, gently sloping beaches, artificial rocks, waterfalls) represent the other major category at this budget level. Recent price guides indicate that custom models with waterfalls and scenario lighting frequently exceed 100,000 euros. The basic version of a lagoon starts much lower, but the landscaping finishes quickly drive up the bill.
The fundamental difference with the overflow: the lagoon integrates the surroundings into the price of the pool. Rocks, vegetation, submerged beach – everything is included. However, maintaining a lagoon pool with shallow areas and nooks is more demanding than a classic rectangle.
High-End Technical Equipment: Where to Allocate the Remaining Euros
Once the structure and shape are chosen, the remaining budget is divided among several technical items that distinguish a luxury pool from a simply large one.
- Biological or diatomaceous filtration, significantly more efficient than standard sand filters, improves water quality and reduces chemical consumption in the long term.
- Automated treatment (salt electrolysis, connected pH/chlorine regulation) eliminates daily manual management and stabilizes water parameters with a precision that manual dosing cannot achieve.
- The inverter heat pump, which adjusts its power to the outside temperature, allows for an extended swimming season of several weeks in spring and fall.
- Programmable LED lighting (submerged spots, fiber optics in coping) transforms the nighttime ambiance of the pool and its surroundings.
Pool home automation, often presented as a gadget, makes perfect sense at this budget level. Controlling filtration, heating, and lighting from an app reduces manual interventions and optimizes energy consumption. Connected systems also allow for the detection of anomalies (leaks, pump malfunctions) before they cause costly damage.
Interior Coating and Coping: The Finishes That Make the Visual Difference
The interior coating absorbs a significant part of the budget, and the price differences between options are considerable. A reinforced liner remains the most common solution, even in high-end projects, but it lasts only about ten years before needing replacement.
Glass mosaic or natural stone represents the most durable and customizable choice. The cost per square meter is incomparable to that of a liner, but the lifespan far exceeds that of any other coating. Mineral plaster (quartz or marble type) offers an interesting compromise between aesthetics, durability, and budget.
For coping and beaches, natural stone (travertine, granite, sandstone) dominates this segment. Exotic or composite wood remains an option, but feedback on its longevity in direct contact with chlorinated water varies.
Taxation and Property Valuation: The Calculation Rarely Considered at This Budget Level
An inground pool of more than 10 m² leads to an increase in property tax and development tax. At an investment of 100,000 euros, the expected property value increase does not automatically cover the total project cost. Available data shows that properties with pools sell for more, but the investment/value increase ratio heavily depends on location and the local market.
Practically speaking, the prior declaration of works (or building permit depending on the area and planned shelters) conditions the start of the project. Processing times vary by municipality and can delay a project by several months if the land is in a protected area or within an ABF perimeter.
At this budget level, the margin for maneuver is wide, but each item must be arbitrated based on the land, local climate, and actual use of the pool. A poorly oriented overflow or an undersized lagoon in filtration turns a luxury investment into a source of lasting frustration.