Two-Factor Authentication (2FA) will be required to login to all BCA-related Singpass services from 31 March 2022 (Wed) onwards.

Please beware of malware stealing login credentials saved in internet browsers. Stay vigilant against malicious emails that can infect devices with malware. Keep software and security patches up-to-date. Never disclose your passwords and 2FA details to others.

Please do not click on any links if you receive SMSes that appear to be from BCA. Please be assured that BCA will never ask or request for anyone's personal details via SMS notifications and / or automated phone messages. For any queries / feedback, please visit

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Green Mark e-Filing is an e-Service designed for Qualified Persons for Building Plans [QP(BP)] to e-File their individual project Green Mark (GM) Scores to Building and Construction Authority (BCA). QP(BP) is required to register once to access to this portal.

They system will help to check on the compliance with the minimum Greenmark (GM) score requirements. It will auto-generate GM e-Filing number, GM declaration forms and calculations needed for e-submission through CORENET e-Submission System.The QP(BP) could also retrieve his earlier GM calculation records from the system at a later stage for update and as-built submission.

For Submission in compliance with Building Control
(Environmental Sustainability) Regulations 2008