The bachelor´s thesis deals with the processing of project documentation low-energy semidetached family house in Panenská Rozsíčka vilage. The project as well as the addenda are aleboreted wit regard to contemporary, legislature and standards. The family house is situated on a plot of 2510/16 in the cadastral Panenská Rozsíčka. The family house is designed as a single storey building with not basement, roof bow and attic. Dimensions of the house are 13,15 x 11,4m. The roof of the house is designed bow roof. The building is designed from the systém Porotherm. The base structure consists of a plain concrete C 20/25 and steel-concrete of 150mm is concrete C 20/25 and steel B500