Record checked on 25 October 2026.

Ateliers 2/3/4/

Architecture firm in Paris 12th · founded in 2000

Overview

Ateliers 2/3/4/ is a large Paris collective of architects, urban planners and landscape designers that grew out of the coming together of three practices around 2000. Its portfolio spans corporate headquarters and office refurbishments, housing, sports facilities such as the Paris 2024 Olympic Aquatics Centre (with VenhoevenCS), and public buildings.

Founded
2000
Team
≈ 120
Projects
6
Awards
1

Three practices joined forces in 2000; the company dates from 1998.

Other offices: French Guiana · Shanghai

Partners and founders

Laure MériaudPartner architect / President
Florian LuneauManaging Director
Anne RouzéeManaging Director
Jean MasFounding partner

Fields of work

Offices and headquarters · Office refurbishment · Housing · Sports facilities · Urban planning and landscape

Built work

2024

Olympic Aquatics Centre (with VenhoevenCS)

Saint-Denis · Aquatics centre
2023

Watt (renovation of the former City Défense)

Paris La Défense · Office refurbishment
2018

Kosmo (Parfums Christian Dior headquarters)

Neuilly-sur-Seine · Office building / headquarters
2011

Musée Gustave Courbet (renovation and extension)

Ornans · Museum
2010

Arche en Seine

Paris La Défense · Housing
2008

Air France Airbus A380 maintenance base

Roissy-en-France · Aircraft maintenance hangar

Prizes and awards

  • 2023Grand Prix du Grand Paris (Olympic Aquatics Centre, with VenhoevenCS)

Frequently asked questions

Where is Ateliers 2/3/4/ based?

The firm's address is 234 rue du Faubourg Saint-Antoine, 75012 Paris.

When was Ateliers 2/3/4/ founded?

It was founded in 2000.

How can I contact Ateliers 2/3/4/?

You can reach the firm by phone on +33 1 55 25 15 33 and through its website a234.fr.

What are the main projects of Ateliers 2/3/4/?

Its built work includes Olympic Aquatics Centre (with VenhoevenCS) (Saint-Denis, 2024), Watt (renovation of the former City Défense) (Paris La Défense, 2023) and Kosmo (Parfums Christian Dior headquarters) (Neuilly-sur-Seine, 2018).