1995
Architecture Biennale Buenos Aires. “Roeleveld-Sikkes Dutch Architects”
University of Buenos Aires. “Work Roeleveld-Sikkes Architects”
University of Porto Alegre, Brazil. “Work Roeleveld-Sikkes Architects”
Architects café Leiden. “Developments in Leiden”
1996
Architecture Biennale Barcelona. “Urban planning in the Netherlands”
1997
University of Monterrey, Mexico “Work Roeleveld-Sikkes Architects”
2000
University of Budapest, “Work Roeleveld-Sikkes Architects”
2001
Congress University of Milwaukee, U.S. “Urban planning in the Netherlands”
Biennale Internacional
de Architectura de Buenos “Dutch housing”
2002
Spinozahouse Budapest “Working in Hungary”
2003
Cultural Centre Budapest “International Architects”
2004
Habitat congress the Haque “High-rise block problems central Europe”
2005
Guest lecture University of Bukarest “Dutch Housing”
Lecture BNA Den Haag “Internationaal werken”
2006
RAP architects café Leiden, “Leidse projecten”
Province of Castilla-La Mancha, Spain “Still more housing?”
ReEvolutio congress by City of Budapest “More shopping?”
2007
Albacete, Spain “Urban development”
Congress City of Budapest “A bridge to much?”
Brussels “Dutch Architecture”
Iasi , Romania “Urban vision city of Iasi”
2008
the Hague “Work “Sjoerd Schamhart – Architect”- in memoriam ”
2009
Timişoara’, Romania “Save your city!. Masterplan Timisoara”
2010
City of Budapest “Strategy for the Duna, a cultural project”
City of Budapest “Development of the Budapest Donau area’
62nd CEEC General Assembly “How to work in Hungary”
2011
Koŝice, Slovakia. “Masterplanning Brownfields Central Europe”
Wenen. “Strategy for the Duna, a cultural project”
2012
Conference, Debrecen. “Transforming small cities”
Urban planning on island Kish, Iran “Urban planning and respecting old cities”
Presentation Trade Mission
Trinidad en Tobago “City Identity as economic driver”
Presentation at Design Week of Budapest, “Identity of cities”
2013
Lecture Ljubljana Forum “Need of masterplanning”
Iasi, Romania “Archeological site Stefan del Mare”
Bukarest, Romania “Integral Urban planning”
2015
Lecture regarding
the book of Emiel Lamers “Dutch Architecture in Hungary”
Kaunas Lithuania. “Lecture Sustainable Urban planning in Central Europe”
2016
Lecture Architectural
Congress in Budapest. “Meeting Cultures”
Lecture and workshops in
Vilnius and Alytusin Litouwen “Sustainable Urban Mobility Planning”