Rossmann Architects (Gatineau): Ottawa Architect Architects Ottawa Architect Ottawa Ottawa Architects Custom Home Ottawa .Here at Rossmann Architects and Associates we offer friendly, professional and reliable design services to the Ottawa area. We pride ourselves on our work putting all of our experience and expertise into every project to make sure you get the quality of work that you expect. Rossmann Architects makes sure that the project you have imagined is put onto paper and created with all your ideas and creativity being incorporated. We work with you, to make your dream a reality