TY - CONF TI - Prototyping a construction-stage platform for as-built sustainability data management C1 - Singapore, Singapore C3 - Proceedings of the 34th Annual Conference of the International Group for Lean Construction (IGLC 34) SP - 107 EP - 119 PY - 2026 DO - 10.24928/2026/0203 AU - Pikas, Ergo AU - Pügi, Ranar AU - Robal, Tarmo AU - Vendel, Kädi-Riin AU - Tetik, Müge AU - Koskela, Lauri AD - Associate Professor, Dep. of Civil Engineering and Architecture, Tallinn University of Technology (TalTech), Tallinn, Estonia, ergo.pikas@taltech.ee, orcid.org/0000-0001-5691-685X AD - Merko Ehitus AS, Tallinn, Estonia. AD - School of Information Technology, TalTech, Tallinn, Estonia, orcid.org/0000-0002-7396-8843 AD - Dep. of Civil Engineering and Architecture, TalTech, Tallinn, Estonia, orcid.org/0009-0004-1702-1817 AD - Civil Engineering Dep., Lappeenranta-Lahti University of Technology, Lahti, Finland, orcid.org/0000-0002-4013-0577 AD - Dep. of Civil Engineering and Architecture, TalTech , Tallinn, Estonia, orcid.org/0000-0003-4449-2281 ED - Hamzeh, Farook ED - Poshdar, Mani ED - Garcia-Lopez,, Nelly P. AB - New regulations and voluntary green certification schemes mandate the disclosure of as-built life-cycle global warming potential (GWP). Current construction-phase data management is a bottleneck because contractors and subcontractors manage data using fragmented digital workflows. This study utilizes an Action Design Research (ADR) approach to develop and pilot a low-code/no-code (LCNC) digital platform designed to integrate BREEAM reporting and automated A1 to A5 carbon calculations into routine site operations. This preliminary study was implemented over a two-month pilot on a commercial project in Tallinn, Estonia, involving five subcontractors. The System Usability Scale (SUS) method yielded an average score of 89.5, indicating good usability and successful workflow integration. Pilot demonstration and expert feedback confirmed that domain-specific, structured data capture significantly improves reporting quality, auditability, and calculation readiness. The findings demonstrate that digitizing the reporting responsibility enables lean-aligned carbon performance feedback, providing a solution for meeting emerging "as-built" environmental disclosure requirements. KW - Construction-phase LCA KW - as-built carbon reporting KW - Low-code/no-code (LCNC) KW - data management standardization KW - lean construction. PB - T2 - Proceedings of the 34th Annual Conference of the International Group for Lean Construction (IGLC 34) DA - 2026/06/22 CY - Singapore, Singapore L1 - http://iglc.net/Papers/Details/2506/pdf L2 - http://iglc.net/Papers/Details/2506 N1 - Export Date: 19 June 2026 DB - IGLC.net DP - IGLC LA - English ER -