TJCA is a multidisciplinary firm composed of architects, project managers, financial specialists, engineers, and building economists.
Established in Geneva since 1979, we are mainly active in Switzerland and occasionally in Europe.
Our goal is to provide integrated services covering every aspect of real estate projects, creating a link between clients, investors, and the construction sector.
Our passion and motivation lie in taking part in the construction process, whether in a limited or extensive capacity, depending on the required level of involvement.
If you would like to submit a project, please do not hesitate to contact us.

Alizée Ledreck
alizee.ledreck@tjca.ch
+41 22 869 88 36

Amandine Lefevre
amandine.lefevre@tjca.ch
+41 22 869 88 46

Anouchka Cerf
anouchka.cerf@tjca.ch
+41 22 869 88 44

Arno Roger
arno.roger@tjca.ch
+41 22 869 88 51

Aurélien Ziörjen
aurelien.ziorjen@tjca.ch
+41 22 869 88 31

Bénédict Estier
benedict.estier@tjca.ch
+41 22 869 88 38

Benjamin Terrier
benjamin.terrier@tjca.ch
+41 22 869 88 45

Catarina Moisao
catarina.moisao@tjca.ch
+41 22 869 88 41

Chris Miller
chris.miller@tjca.ch
+41 22 869 88 21

Christian Celani
christian.celani@tjca.ch
+41 22 869 88 25

Deborah Marolf
deborah.marolf@tjca.ch
+41 22 869 88 32

Fabien Heckmann
fabien.heckmann@tjca.ch
+41 22 869 88 20

Guillaume Morillon
guillaume.morillon@tjca.ch
+41 22 869 88 26

Jennifer Joyal
jennifer.joyal@tjca.ch
+41 22 869 88 23

Jessica Mathez
jessica.mathez@tjca.ch
+41 22 869 88 44

Justine Cocquel
justine.cocquel@tjca.ch
+41 22 869 88 39

Laura Müller
laura.muller@tjca.ch
+41 22 869 88 24

Laurent Willimann
laurent.willimann@tjca.ch
+41 22 869 88 44

Leandro Mondo
leandro.mondo@tjca.ch
+41 22 869 88 44

Marine de Molliens
marine.demolliens@tjca.ch
+41 22 869 88 43

Noémie Bompas
noemie.bompas@tjca.ch
+41 22 869 88 44

Paola Pozzorini
paola.pozzorini@tjca.ch
+41 22 869 88 29

Paul Muguet
paul.muguet@tjca.ch
+41 22 869 88 33

Raphaël Cuenin
raphael.cuenin@tjca.ch
+41 22 869 88 28

Richard Harri
richard.harri@tjca.ch
+41 22 869 88 44

Sabrina Harri
sabrina.harri@tjca.ch
+41 22 869 88 27

Talia Chalk-Pabouctsidis
talia.pabouctsidis@tjca.ch
+41 22 869 88 30

William Allemand
william.allemand@tjca.ch
+41 22 869 88 44