Pre-construction survey and communication plan for landed development
Before construction, the builder shall conduct pre-construction surveys. Where the development is landed property, the builder shall also notify the neighbours. Find guidelines and forms here.
Last updated 26 January 2026
What to do before you build
Before starting any demolition, piling, foundation, tunnelling, or site formation works, you must carry out a pre-construction survey to establish the condition of nearby existing buildings and structures.
How to carry out the survey
Refer to the Guidelines on Pre-Construction Survey [PDF, 903 KB] to understand the minimum survey zones required for different types of projects.
Communication plan for landed property
Before starting on building works for landed property, you must also inform the neighbours and obtain written consent for access where necessary.
If there are concreting of any new RC wall abutting to the existing party or boundary wall, the builder shall also notify BCA using the notification forms during permit application.
Forms
For notifying neighbours:
Annex 1: Notification of Building Works to Neighbours
Annex 1: Request for Consent for Access
For submission to BCA during permit application:
Annex 2: Notification to Commissioner of Building Control (CBC) on Communication Plan
Annex 2: Notification to CBC on Status of Pre-Construction Survey
Annex 2: Notification to CBC on Consent for Access
Annex 2: Notification to CBC on Concreting for RC Wall Abutting Existing Party or Boundary Wall
Download all the forms [PDF, 104 KB] for notifying neighbours and submission to BCA during permit application.