Our project Emblem in Lille has been delivered!

Our project Alta Tower has been delivered!

Our project Les Terrasses in Clermont-Ferrand has been delivered!

Building permit granted. Head office of the Groupe Angevin and social housing and home ownership scheme

Work continues on the High Garden site in Rueil-Malmaison.

Work continues on Métamorphose, Angers.

Work continues on Ateliers Vaugirard, Paris.

Building permit granted. Zac of the docks eco-district, Saint-Ouen

Work continues on Safran, Lorient.

Work continues on Maloë in Dunkerque.

Delivered ! Îlot Baignade, Alfortville

Winner! “Oasis 18”, Zhengzhou, China

Château Septfontaines, City of Luxembourg 

International Competition, Songdo Library, Inchéon

Second place in the international invitation competition for the “Limassol Tower” in Limassol, Cyprus

Delivery! Rue Camille Claudel, Clichy-la-Garenne.

50 meters inhabited!

55 meters inhabited!

Prospective project – Avenue Foch, from the Etoile to the Porte d’Auteuil

22 January 2025

Conference / Architects not Architecture 2025

On 6 February 2025, Jean-Christophe Masson will be invited to the Paris edition of the Architects, not Architecture conferences.

19 September 2024

Publication / Le Moniteur – Alta Tower

In Perret’s orthogonal universe, the Alta Tower brings a twist to the heart of the city and rekindles its architectural flame.” – Sophie Trelcat, Le Moniteur, September 2024, page 60.

13 September 2024

Publication / Archdaily – Emblem

26 August 2024

Publication / DIVISARE – Emblem

21 August 2024

Publication / Detail – Alta Tower

26 July 2024

Publication / Designboom – Emblem

“Emblem blends urban connectivity with ecological design.

24 July 2024

Publication / Archiscopie – Alta Tower

Une vrille dans la grille de Perret, Francis Rambert, Archiscopie n°37, July 2024, page 100.

17 July 2024

Publication / Architects’ Journal – Alta Tower

« What Hamonic+Masson has done is create a contemporary landmark, standing as an anchor for the city, and representing a shift in how the city both sees itself and is perceived from the outside. » By Frances Williams.

13 May 2024

Publication / Architecture Magazine – Alta Tower

« Its twisting geometry and concrete frame make a bold and expressive statement at the heart of French architect Auguste Perret’s celebrated post World War II redevelopment of the city, close to Oscar Niemeyer’s curvaceous Le Volcan leisure centre. »

8 April 2024

Publication / STIRworld – Alta Tower

« This twirling apartment block of concrete and glass in Le Havre, France, pays homage to the local work of modernists Oscar Niemeyer and Auguste Perret. »

25 March 2024

Publication / Beaux Arts Magazine – Alta Tower

Une tour nouvelle reine du Havre, Philippe Trétiak, page 20, numéro d’avril 2024.

20 March 2024

Publication / Divisare– Alta Tower

« Its twisting geometry and concrete frame make a bold and expressive statement at the heart of French architect Auguste Perret’s celebrated post World War II redevelopment of the city, close to Oscar Niemeyer’s curvaceous Le Volcan leisure centre. »

7 March 2024

The Alta Tower is a finalist for the MIPIM Awards 2024 in the Best Residential Project category.

5 March 2024

Publication / Dezeen – Alta Tower


Jean-Christophe Masson has answered a few questions about the Alta Tower. A review of the project’s technical aspects and a visual tour are available on Dezeen.

15 December 2023

Inauguration of the Alta tower in Le Havre in the presence of Mayor Edouard Philippe.

Après presque 9 ans, la tour de 55m regroupant 63 logements et une crèche municipale est désormais livrée à ses futurs occupants et à la ville, et s’inscrit aujourd’hui dans la skyline du Havre. Merci et bravo à toutes les équipes locales de SOGEPROM et de Legendre Construction du Groupe Legendre.

Client: Sogeprom
Contractor: Legendre Construction

24 November 2023

End of the structural work in Angers.

The Paris team travelled to Angers to celebrate the completion of the structural work on the Métamorphose project over the traditional gigot bitume. Here, spatial, programmatic and technical innovation is offering the city a new meeting place. Well done to all the teams involved in the project!

Client: Groupe Giboire
Contractor: Léon Grosse

12 October 2023

Visit to the Métamorphose construction site

Teams from Groupe Giboire and the agency present the project to a number of people, including Jean-Marc Verchère, Mayor of Angers and Chairman of Angers Loire Métropole. The structural works will be completed in early December.

27 September 2023

France 3 Régions at the Alta Tower

France 3 Régions visited the Alta Tower with Gaëlle Hamonic.

27 September 2023

76actu documents the end of the construction

76actu takes you on a tour of the Alta tower, few weeks before its delivery.

10 May 2023

Golden Cube in Boulogne Billancourt on Divisare

Delivered in 2015, standardization, self-regulation and maximization of interior space were the guiding principles of these student residences.

A look at the project on Divisare.

8 April 2023

Part of the 25 best architecture firms in France by Archello

28 November 2022

Jean-Christophe Masson intervened as a major witness during the Estates General of Housing in Marseille

8 September 2021

Publication / Restructuring and extension of the courthouse in Douai

6 September 2021

Publication / ‘working environments, spaces of productivity’ of the Courthouse Douai

26 May 2021

Launch of the Metamorphosis project

May 25, 2021, first stone for the launch of the construction site of our “Metamorphosis” project in the presence of the Mayor of Angers, Mr Christophe Béchu and the Chairman of the Giboire group, Mr Michel Giboire.

18 November 2019

Contribution to the Biennale of architecture of Pisa