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Singapore Land Authority
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Property boundaries

Read all about boundary survey, its importance and how it is conducted.

Last updated 30 June 2025

Allocation of Lot Numbers

Find out how and when Lot numbers are allocated.

Conducting a Cadastral Survey (For Registered Surveyors)

Find out what you need to do to conduct a cadastral survey as a Registered Surveyor

Conducting a property boundary survey (For property owners)

Find out what you need to do as a homeowner to carry out a property boundary survey.

Survey Maps and Plans

SLA maintains a record of Certified Plan (CP), Strata Certified Plan (CPST), Registrar of Title Plans (RT) and Cadastral maps in electronic format.

Survey Reference System

In 2004, SLA introduced the Co-ordinated Cadastre system to replace the old land survey system. The new system defines property boundaries by co-ordinates, rather than bearings and distances.