Background and activities

Tommy Kleiven is a professor in architecture and teaches within the international master programme of Sustainable Architecture at NTNU Faulty of Architecture and Design. His main teaching and research interest is within sustainable architecture and neighbourhoods. He has a special interest in passive energy design where the architecture itself responds to the programme, site and climate to utilise passive strategies to help achieve zero emission and plus energy buildings and neighbourhoods. Kleiven has a background from research within the field of low energy architecture (8 years at SINTEF) where he led and participated in several national and international research projects. He has also worked as a consultant in the private industry (8 years) and led an architectural office (3 years at tegn_3 architects) were he was responsible for several low energy and plus energy buildings within the fields of education, health and housing.

Scientific, academic and artistic work

Displaying a selection of activities. See all publications in the database

Journal publications


  • Andresen, Inger; Kleiven, Tommy; Ryghaug, Marianne; Malvik, Bjarne. (2007) Smarte energieffektive bygninger. Tapir Akademisk Forlag. 2007. ISBN 9788251922371.

Part of book/report

  • Kleiven, Tommy; Woods, Ruth; Risholt, Birgit Dagrun. (2014) Retrofitting with prefabricated modules. Stakeholders' views and needs. World Sustainable Building 2014 Conference, 28-30 Oct., Barcelona.
  • Solberg, Silje Strøm; Kleiven, Tommy. (2014) Deep renovation of single family houses in Norway. Mapping of the most ambitious projects and lessons learned in them. World Sustainable Building 2014 Conference, 28-30 Oct., Barcelona.
  • Aschehoug, Øyvind; Andresen, Inger; Kleiven, Tommy; Wyckmans, Annemie. (2005) Intelligent Building Envelopes - Fad or Future?. Proceeding of the 7th Symposium on Building Physics in the Nordic Countries. Volume 1.
  • Kleiven, Tommy; Aschehoug, Øyvind; Wyckmans, Annemie. (2005) Double Facades at High Latitudes - Some User Experiences. Proceedings. Glass in Buildings 2.



  • Formolli, Matteo; Kleiven, Tommy; Lobaccaro, Gabriele. (2021) Solar Accessibility at Neighbourhood Scale: An Analysis to Assess the Impact of Densification in Nordic Built Environment. ISES Solar World Congress 2021 ; 2021-10-25 - 2021-10-29.
  • Andresen, Inger; Gaitani, Niki; Kleiven, Tommy. (2019) Nullutslippsbygg og plusshus – hva skjer i Norden anno 2019?.
  • Ness, Maria Coral Albelda-Estellés; Andresen, Inger; Kleiven, Tommy. (2019) Building Bioclimatic Design in cold climate office buildings. 1st Nordic Conference on Zero Emission and Plus Energy Buildings . NNTNU; Trondheim. 2019-11-06 - 2019-11-07.
  • Gullbrekken, Lars; Svensson, Anna; Kleiven, Tommy; Andresen, Inger. (2015) PERFORMANCE EVALUATION OF PASSIVE HOUSES – FIELD MEASUREMENTS, DATA ANALYSIS, AND OCCUPANT INTERVIEWS IN 6 NORWEGIAN DWELLINGS. Passivhus Norden 2015 ; 2015-08-20 - 2015-08-21.
  • Kleiven, Tommy. (2013) Gode energikonsepter for oppgradering av boligblokker. Universell utforming og miljøvennlig energibruk Tilfeldig rehabilitering eller planmessig oppgradering? . SINTEF Byggforsk, Energi og arkitektur; Trondheim. 2013-11-09.
  • Andresen, Inger; Farkas, Klaudia; Hestnes, Anne Grete; Kleiven, Tommy. (2009) Urban PVTool – A tool for planners and architects. IEA PVPS TASK10 / PV-UP SCALE ; Rome. 2009-05-11 - 2009-05-13.
  • Kleiven, Tommy. (2007) Utnyttelse av termisk masse til klimatisering av bygninger. Norsk bygningsfysikkdag ; Oslo. 2007-11-28 - 2007-11-28.
  • Aschehoug, Øyvind; Wyckmans, Annemie; Andresen, Inger; Kleiven, Tommy. (2005) Intelligent Building Envelopes - Fad or Future?. Nordic Symposium on Building Physics ; Reykjavik. 2005-06-13 - 2005-06-15.
  • Aschehoug, Øyvind; Kleiven, Tommy; Thue, Jan Vincent. (2004) Integrerte energiløsninger. Energikonferansen og faglærerkonferansen for enøk . Høgskolen i Agder; Grimstad. 2004-06-15 - 2004-06-16.
  • Kleiven, Tommy; Hestnes, Anne Grete. (2004) Natural Ventilation in Buildings - Architectural Concepts, Consequences, and Possibilities. EuroSun2004 . ISES Europe; Freiburg. 2004-06-20 - 2004-06-23.