Multi-Sports Complex

Design competition – Sketch stage

A team committed to serving the territory

This project was carried out by a design team gathered around a common conviction:
to design a durable, legible public facility deeply rooted in its context.

Architect
COSTE Architectures

Engineering and technical partners
Structure, MEP, acoustics, environment, cost consultancy

A team united by an integrative approach:
thinking about use, technique, performance and durability all at the same time.

A facility that embodies movement

A multisports complex is a place of intensity.
A place where the body engages, where the breath quickens, where energy circulates.

The architecture translates that invisible dynamic.

Two main volumes make up the building.
Two sober monoliths, animated by a vertical wave of brises-soleil.

A rhythm.
A pulsation.

Like a discreet electrocardiogram inscribed on the façade.

The building does not seek the spectacular.
It expresses movement with restraint.

Sitting with accuracy

The site is delicate:
a residential cul-de-sac, neighbouring detached houses, the Aimé Bergeal stadium to the west, the A13 motorway to the north.

The architectural response rests on balance.
Lower volumes on the street side to dialogue with the houses
The tallest multi-sports hall on the stadium side
The technical zone and parking acting as a buffer to the north
A forecourt placed to the south-east, closest to the natural arrival flow

The building slips into its environment without dominating it.

It respects views.
It limits cast shadows.
It creates a soft transition between residential housing and public facility.

A forecourt as a living threshold

The forecourt is not just an access space.

It is a threshold.
A place of gathering.

Dressed in the yellow colour of the Athletic Club of Mantes-la-Ville, it asserts the sporting identity without excess.

The same hue is found in:

• The reception hall
  
• The cafeteria
  
• The stands

Colour becomes shared energy.

A clear organisation, a backbone

As in Chartres, the legibility of flows is central.

The hall is the heart of the building.
It distributes all the sporting entities:

• Multi-sports hall
  
• Dojo
  
• Multi-activity room

A central circulation acts as a backbone, serving changing rooms, sanitary facilities and technical accesses.

Athletes pass through the changing rooms before reaching the practice area.
Spectators access the stands directly on the upper floor.
Technical flows are separated.

Clarity.
Efficiency.
Simplicity.

Matter and duality

The architecture rests on a controlled tension:

Outside

Robust, metallic, mineral.
Stained concrete for the base.
Matte-grey thermo-lacquered steel cladding.

Inside

Warm, biosourced, welcoming.
Timber framing in elevation.
Glulam roof structures.
Resilient and durable finishes.

The exterior sobriety protects.
The interior warmth welcomes.

Controlled light

The openings, mostly oriented north and east, ensure:

Diffuse natural light

No glare

Controlled summer overheating

Vertical brises-soleil protect the south and east façades.

Light becomes a tool of comfort,
never a risk to sporting practice.

Responsible environmental performance

Sustainability guides the project.

• High-performance biosourced insulation
  
• Timber framing in the superstructure
  
• Air/water heat pump
  
• Dual-flow ventilation with energy recovery
  
• Solar thermodynamic DHW production
  
• 150 sqm of photovoltaic panels
  
• Planted roofs
  
• Buried rainwater retention (200 m³)

The building targets the E3 level of the E+C- framework.

Performance is not displayed.
It is integrated.

Invisible comfort

A successful sports facility is measured by what is not seen:

• Controlled acoustics (NFP 90-207 standard)
  
• Controlled reverberation time
  
• Wood-fibre acoustic absorbent treatment
  
• Hygrothermal management adapted to large volumes
  
• Ventilation modulated by CO₂ sensors

Comfort becomes the foundation of the sporting experience.

A place of cohesion

A multisports complex is a social catalyst.

It brings together:
children, clubs, families, spectators.

It becomes a landmark in the neighbourhood.
It structures habits.
It supports collective effort.

In Mantes-la-Ville, architecture accompanies movement.

It pulses,
like the heart of a body in action.

COSTE Architectures signature

This project expresses the agency's constant values:

Constructive sobriety

Intelligence of flows

Respect for context

Durability of materials

Environmental awareness

Architecture of connection

Less gesture, built.
More meaning.