Dr. R.M.K.U. Rajapaksha

Contact information


Department of Architecture

Faculty of Architecture



Primary Email
Other Emails

Teaching and Administrative Activities

Administrative Activities
Director, Faculty of Architecture Research Unit, University of Moratuwa

Research Activities

Key Research Areas
Architecture for thermal delight
Green architecture
Sustainable retrofitting of non-domestic buildings
Climate responsive urban environments
Energy sustainability of buildings

Education and Training

Bachelor of Science (Built Environment), University of Moratuwa, Sri Lanka
Master of Science (Architecture), University of Moratuwa, Sri Lanka
Doctor of Philosophy in Architecture, The University of Queensland, Australia, 2004


Professional Affiliations
Associate, Sri Lanka Institute of Architects
Overseas Member, Royal Institute of British Architects
Member, Royal Australian Institue of Architects

Honours and Awards

Honours and Awards
Postdoctoral Research Fellowship, The University of Sydney, 2009/2010
International Postgraduate Research Scholarship, Australia, 1998 - 2003
University of Queensland Postgraduate Research Scholarship, Australia, 1998 - 2003
Best Researcher Award, Sri Lanka Institute of Architects, 2012
Dr. Justin Samarasekara Award for the Best M.Sc. (Architecture) Dissertation, University of Moratuwa
Highly Commended Pass for Comprehension Design Project of M.Sc. (Architecture), University of Moratuwa



Refereed Journal/Conference Publications

  • Rajapaksha. U and Hyde Richard2012, Barriers to and opportunities for advanced passive cooling in sub tropical climates; a case study from Australia, Architectural Science Review Journal, Vol. 55 Issue 1, The University of Sydney (Special edition on Innovative approaches to natural ventilation of buildings– Guest Editor Sue Roaf), Taylor and Francis, pp 49-60
  • Rajapaksha. Uand Gamage. W, 2010, Existing non-domestic building stock in Sri Lanka, the problem of indoor overheating and environmental retrofitting, ICTAAD Journal, Vol. V111, pp; 14-22
  • Rajapaksha. U, Rajapaksha. I and Hyde. R, 2011, Towards an evidence based model for retrofitting – mapping thermal load profiles and solution sets for carbon neutral status in existing buildings, in Proceedings of 45thANZAScA Conference, USYD
  • Rajapaksha. U, Rajapaksha. I and Hyde. R, 2010, Developing a methodology for retrofitting commercial high rise buildings in warming climates, in Proceedings of 44th  ANZAScA Conference, November, Unitech Institute, New Zealand
  • Rajapaksha. I, Rajapaksha. U and Hyde. R, 2010, Predictive modeling for retrofitting, a critical case appraisal of an existing high rise office building in Brisbane, in Proceedings of 44th ANZAScA Conference, November, Unitech Institute, New Zealand    
  • Hyde. R, Rajapaksha. I, Nathan Groenhout, Francis Barram, Rajapaksha. U, Cristina Candido and Shariarh. A, 2009, Bioclimatic retrofitting for commercial high rise buildings, Proceedings of 43rd   ANZAScA Conference, November, University of Tasmania, Australia 
  • Rajapaksha, U and Hyde R, 2005, “Sustainable by passive architecture, using courtyards in non domestic buildings in moderate climates”, in Action for Sustainability, Proceedings of The 2005 World Sustainable Building Conference, (SB05Tokyo) 27th to  29thSeptember 2005,Tokyo, Japan, pp. 979-986 
  • Rajapaksha. U. and Hyde, R., 2002 “Passive modification of air temperature for thermal comfort in a courtyard building in Queensland”, in Levin. H (ed), Indoor Air 2002, Proceedings of the 9th International Conference on Indoor Air Quality and Climate, Monterey, California, June 30-July 5 2002, Vol. 2, pp: 860-866 
  • Rajapaksha. U. and Hyde, R. 2002 “Courtyard as a climate modification strategy for thermal comfort in moderate climate of Queensland”, in Gaber, M. et al (eds.), Design with the environment, Proceedings of the 19th Passive and Low Energy Architecture Conference, Toulouse, France, July 22-24 2002, Vol. 1, pp:637-643 
  • Rajapaksha. Uand Hyde, R 2001 “The potential of the tropical courtyard concept for cooling in multi storey buildings”, in Pereira, F.O.R et al (eds.), Renewable Energy for a Sustainable Development of the Built Environment, Proceedings of the 18th Passive and Low Energy  Architecture Conference, Florianopolis, Brazil, November 7-9 2001, Vol. 1, pp: 153-154

Non-refereed papers/reports/presentations

  • Rajapaksha. U, 2010, Buildings in the context of climate change, designer’s involvement, Annual symposium on building research to face future chalanges, November 02, 2010, Watrers Edge Colombo pp. 108-112
  • Hyde. R, Rajapaksha. I,Rajapaksha. Uand Law.J, 2003, Environmental Diagnostic Study for All Hallow’s school, Brisbane, Australia, Research paper for Centre for Sustainable Design, The University of Queensland
  • Hyde. RAand Rajapaksha. U “ABEC Building Case Study: University of the Sunshine Coast, Queensland”, Case study, Centre for Sustainable Design, The University of Queensland, Australia for Australian Building Energy Council, Web site www.abec.com.au
  • Rajapaksha. U, “The traditional house and its ratio between inner and outer spaces” a paper presented at the second Research Colloquia of Aboriginal Environments Research Centre at the University of Queensland in November, 1999, Web site http://www.aboriginalenvironments.com


  • Mapping architecture for energy sustainability in office buildings in the tropics, Continuous Professional Development (CPD) Program of Sri Lanka Institute of Architects, First Program of Session 2012/2013 Auditorium of HNB Towers, Colombo, June 28, 2012
  • GREEN BUILDINGS, Academic session of section D of Sri Lanka Association for the Advancement of Sciences (SLAAS), December, 2009,
  • Low energy and hybrid buildings, invited paper presented at the 23rd Annual Sessions of the Organization of Professional Associations of Sri Lanka, September, 2011

Book Chapters

  • Rajapaksha. U, 2011, Design solution sets for retrofit, Chapter 2.2, in Richard Hyde (Ed), Bioclimatic retrofitting for commercial high rise buildings in warming climates, Taylor and Francis. UK (in final camera ready stage- forthcoming in September 2012)
  • Rajapaksha, U, 2008, “Courtyards and external rooms”, in Hyde, R. (ed.) Bioclimatic Housing; Innovative Designs for Warm Climates, Part III, Chapter 9, Earth Scan UK & USA, pp. 327-332
  • Rajapaksha, I and Rajapaksha. U, 2008, “Bandaragama House, Colombo, Sri Lanka”, in Hyde, R. (ed.) Bioclimatic Housing; Innovative Designs for Warm Climates, Part I, Chapter 2, Earth Scan UK & USA, pp. 102-111