This paper study the impact of communication through collaboration on construction projects performance in Indonesia. The current descriptive study, applied quantitative method in data gathering, represented the construction companies in Indonesia. | The impact of communication through collaboration on building project performance in Indonesia International Journal of Mechanical Engineering and Technology IJMET Volume 10 Issue 03 March 2019 pp. 1773-1780. Article ID IJMET_10_03_179 Available online at http ijmet JType IJMET amp VType 10 amp IType 3 ISSN Print 0976-6340 and ISSN Online 0976-6359 IAEME Publication Scopus Indexed THE IMPACT OF COMMUNICATION THROUGH COLLABORATION ON BUILDING PROJECT PERFORMANCE IN INDONESIA Vahid Aghania Sara Ramzani and Valliapan Raju Post Graduate Centre Limkokwing University Cyberjaya. Malaysia. ABSTRACT This paper study the impact of communication through collaboration on construction projects performance in Indonesia. The current descriptive study applied quantitative method in data gathering represented the construction companies in Indonesia. The analysis shows a positive and significant relationship between formal and willingness to communicate with project collaboration. It also supports that project collaboration has an impact on project performance. Key words Communication collaboration construction project performance building project Cite this Article Vahid Aghania Sara Ramzani and Valliapan Raju the Impact of Communication through Collaboration on Building Project Performance in Indonesia International Journal of Mechanical Engineering and Technology 10 3 2019 pp. 1773-1780. http IJMET JType IJMET amp VType 10 amp IType 3 1. INTRODUCTION As the evolution of the global construction industry continues to accelerate Indonesia is experiencing a rapid increase in the sheer volume of construction projects being undertaken. This is resulting in a corresponding intensification of competition in this geographical market and when considered within the context of the increasingly complex project environment collaboration in construction projects is emerging as a crucial feature to be incorporated into stakeholder strategic .