Green building assessment tool (GBAT) for integrated BIM-based design decisions

Bahriye Ilhan*, Hakan Yaman

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

164 Citations (Scopus)


The benefits of BIM such as effective decision making, improved analysis, easier access to information and simpler green building certification provide an optimised solution for sustainable design and construction. This study proposes an IFC-based framework within an integrated BIM and sustainable data model for the design stage of the building project life cycle. We present the green building assessment tool (GBAT), which implements the proposed model and aids the design team in the generation of documentation necessary for obtaining green building certification. It extracts the necessary data from BIM models for calculating the green rating and provides feedback for further evaluation. A sample project is run and a green rating score table for the BREEAM materials category is obtained for validation of the model. This tool serves as a proof of concept that green data relevant for BREEAM certification can be automatically processed and used to inform the design.

Original languageEnglish
Pages (from-to)26-37
Number of pages12
JournalAutomation in Construction
Publication statusPublished - 1 Oct 2016

Bibliographical note

Publisher Copyright:
© 2016 Elsevier B.V.


This research was supported by the ITU Graduate Theses Supporting Program (project no. 36529 ). The authors wish to thank Timothy Davis who assisted in the proofreading of the manuscript.

FundersFunder number
ITU Graduate Theses Supporting Program36529


    • BIM
    • BREEAM
    • Green building assessment
    • IFC
    • Integration
    • Sustainability


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