Alexandre Clerc, the young Fribourg architect, and his team have already produced a notable number of high-quality buildings: small school buildings, for instance for the school in St-Cierges VD, which is placed with great topographic precision, the exciting ensemble of the vocational school in Domdidier FR and the cleverly conceived extension to the multifunctional hall in Sales FR. The text is in French, with an English summary.