Claude Parent

Immeuble du SEPTEN, Lyon-Villeurbanne, 1981-1991

Following the decentralization of part of its services in the early 1980s, Électricité de France decided to relocate the Service Études et Projets Thermiques Et Nucléaires (research center for thermal and nuclear studies) from La Défense in Paris to Villeurbanne. Claude Parent, who had already worked with this state-owned company on nuclear power plant projects, was selected as the architect. The project did not go through the usual competitive process given the “complexity of the works,” but also and especially because of its strategic aspects. Parent worked with the architects René Gimbert and Jacques Vergely of Villeurbanne and the landscape architect Jérôme Vital-Durand of Lyon. The latter took charge of developing the main hall, which comprises terraces, plantings and circular ponds in an 800-m² area of green space. From the choice of the site all the way to the acceptance and sign off on the building, the architects followed each step of the construction process in close coordination with the client’s project management delegate, M. Maerten, deputy director of the S.E.P.T.E.N. Several projects were developed to meet the E.D.F. engineers’ requirements, most importantly to facilitate communication between the various departments. Behind the architectural part that was finally chosen hides the simplicity of the plan, an idea Claude Parent had been working on since the 1960s. The main building, square in plan, has a vast central courtyard (30 m x 27.5 m) under a glass roof. Inside this system, vertical circulation is via elevators and horizontal circulation, between the various floors, via ramps with a 5% incline. They enable one to move from the ground floor up to the fifth level without encountering a sharp break. The light penetrating from the glass roof is further enhanced by slits in three of the façades. Two other smaller buildings are attached to this cube in reinforced concrete and clad in polished granite.

Audrey Jeanroy

Immeuble du SEPTEN, Lyon–Villeurbanne

Dessin

Encre sur calque

21.1 x 29.6 x

1982

997 68 05

Dessin
Feutre sur calque
49.9 x 65
1982
997 68 16

Dessin
Crayon graphite sur calque
49.9 x 65
1981
009 45 04

Dessin
Feutre sur calque
29.7 x 42
1982
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Dessin
Feutre et crayon graphite sur calque
50 x 65
1982
009 45 02

Esquisse n°2, rez-de-chaussée, éch. 1/200
Dessin
Feutre sur calque
37.3 x 74.3
1982
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Dessin
Encre et crayon graphite sur calque
18.6 x 28.7
1982
997 68 01

Dessin
Feutre sur calque
29.6 x 42
1982
997 68 02

Dessin
Encre sur papier
29.7 x 21
1982
997 68 03

Dessin
Encre et crayon graphite sur calque
29.7 x 42
1982
997 68 04

Dessin
Encre sur calque
21.1 x 29.6
1982
997 68 05

Dessin
Encre sur calque
29.7 x 42.3
1982
997 68 06

Dessin
Encre sur calque
29.7 x 42.2
1982
997 68 07

Dessin
Encre sur calque
29.5 x 41.9
1982
997 68 08

Croquis inférieur
Dessin
Crayon graphite sur papier
50 x 64.4
1982
997 68 09

Dessin
Encre sur papier
40 x 49.6
1982
997 68 10

Dessin
Encre sur calque
42 x 29.7
1982
997 68 11

Dessin
Feutre sur calque
49.8 x 15
1982
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Septen 2
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Encre sur calque
49.8 x 69.7
1982
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Dessin
Encre et crayon graphite sur calque
49.8 x 65
1982
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Dessin
Feutre sur calque
65 x 49.5
1982
997 68 18

Dessin
Crayon graphite sur calque
65 x 50
1982
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Dessin
Encre et crayon de couleur sur calque
37 x 71.9
1982
997 68 21

Esquisse n°2. Etage 2/3
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Encre sur calque
38.5 x 77
1982
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Esquisse n°2. Etage 4
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Encre sur calque
37.2 x 76.4
1982
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Septen 4
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Encre et feutre sur calque
49.8 x 65
1982
997 68 25

Esquisse n°2. Etage 5
Dessin
Encre, crayon graphite et feutre sur calque
80.6 x 37.3
1982
997 68 26

Plan de l'étage de principe
Dessin
Crayon graphite sur calque
49.8 x 65
1983
997 68 13

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