Year of construction: 1983, renovated in 2014 and 2023
Architect: Jean Balladur
Surface area : 28 000 sq.m
Height : 54 m. 15 floors
Former name: PB5 / SCOR

Address: 14, Passage Boieldieu - 92800 Puteaux
Nearest car park : Boieldieu rouge et bleu
Nearest metro station: La Défense Grande Arche

The real estate company Icade, owner of the tower, decided to renovate the former SCOR tower, which was renamed Hyfive for the occasion.

The renovation involved the redevelopment of common areas and services to meet the expectations of employees: a concierge service, restaurants, a co-working space, bicycle parking... The tower also offers breathtaking views of Paris, the Eiffel Tower and the Bois de Boulogne. Hyfive is a high-performance tower, WiredScore Gold certified and actively committed to the energy transition.

Here is a look at its history. One of the most original buildings in the business district, Hyfive completes the Boieildieu block. The work of one of the most emblematic and atypical figures of the architecture of the Trente Glorieuses, the building is composed of facades animated by prefabricated panels close to bimorphism. Initially entrusted to the Ducharme, Minost, Fischer and Kopniak team, the building was to be a hotel. Today, it is an office building with a "Y" plan, adorned with curved gables and white and black marble, echoing the CNIT located just across the street. Its top two floors are treated with arches, which are often lacking in buildings. Finally, in order to absorb the variations in dilation that oscillate by 2 cm according to the seasons, the 30,000 tons of the building rest on 14 rollers.

A word about the architect

Born in Turkey, Jean Balladur (1923-2002) originally studied literature and was taught by Jean-Paul Sartre. He then turned to architecture and graduated from the Atelier Expert des Beaux-Arts in 1953.

In 1958, he signed with Benjamin Lebeigle and Jean-Bernard Tostivint the building that quickly made him known: the offices of the Caisse centrale de réassurance in the 9th district of Paris. A fan of metal and curtain walls, he developed an aesthetic of concrete by creating the seaside resort of La Grande-Motte (1962-1991). The Hyfive building (PB5, formerly Scor) in La Défense, one of his last projects, allows him to take a new approach in total rupture with the American models.


  • Hyfive
  • Hyfive
  • Hyfive