Design years: 1950-'51 Illustrations: floor plan, 1st, 2nd, 3rd and 4th floors/project for a residential complex (Boom); perspective/project for a residential complex Singelgracht (Heyligers); pespective/project for a residential complex Singelgracht (Ingwersen); floor plan 2nd and 3rd levels/design for a Ned. Cult. Hist. Institute (Konijnenburg); 1st floor/design for a Ned. Cult. Hist. Institute (Roukema); ground floor, N façade family apartment and cross section/project for a residential complex (Boom); cross sections/project for a residential complex Singelgracht (Heyligers); cross sections/project for a residential complex Singelgracht (Koldewijn); façade section and floor plan/project for a residential complex Singelgracht (Salvatore); façades/project for a residential complex Singelgracht (Heyligers); façades/project for a residential complex Singelgracht (Salvatore); level 4 and 5 as well as East façade/design for a Ned. Cult. Hist. Institute (Van der Mey); North and East facade/design for a Ned. Cult. Hist. Institute (Konijnenburg); O. facade bachelor flats/project for a housing complex (Boom); East facade/design for a Ned. Cult. Hist. Institute (Bos); perspective and south facade/design for a Ned. Cult. Hist. Institute (Van der Mey); perspective, N-W facade library and residential wing/design. Ned. Cult. Hist. Institute [Roukema]; floor plan and façade/project for a Singelgracht residential complex (Ingwersen); floor plan main and north façade lodge building/design. Ned. Cult. Hist. Institute [Hallema]; floor plan/design director's residence for a Ned. Cult. Hist. Institute (Bos); floor plan/project for a residential complex, Singelgracht (Koldewijn); floor plans/project for a residential complex Singelgracht (Heyligers); West facade/design for a Ned. Cult. Hist. institute (Bos)