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Building and Construction Authority

Guidelines for ST Plan Applications

Get familiar with the various relevant procedures, legislation, guidelines, and design guides on making structural plan submissions.

Last updated 11 September 2026
Close-up of a person reviewing and signing documents at a desk, representing preparation and review of plans or permit applications.

As the appointed Qualified Person (QP) for structural works, you are responsible for obtaining approval for structural plans and securing a building permit before construction begins. 

Familiarise yourself with the relevant procedures, legislation, guidelines, and design guides below.

Procedures

The Guidelines on Submission of Applications to Commissioner of Building Control [PDF, 236 KB] (opens in new tab) outline the requirements for:

  • Preparation and submission of different types of plans and lists requirements.

  • Construction and completion of building works for the purpose of obtaining the certificate of statutory completion (CSC) or temporary occupation permit (TOP).

Legislation

All requirements are governed by the following regulations:

Guidelines

General

Site Investigation, Preconstruction Survey and Geotechnical Parameters to EC7

Earth Retaining and Stabilising Structures (ERSS) and Slope (include soil nailing and ground anchors)

Tunnelling Works

Foundation Works

Structural Steel & Composite Structures

Reinforced Concrete

Seismic Consideration

Mass Engineered Timber & Fibre Concrete Structures

Construction Site Supervision and Records

Specialist Builder Requirements

Landed Houses and Container Structures

Accreditation of Site Investigation Firms by SAC

BC Regulations 31(2) requires all site investigation works to be carried out by an accredited inspection body approved by the Singapore Accreditation Council (SAC). Refer to the Singapore Accreditation Council website (opens in new tab) for the list of accredited site investigation firms by SAC.

Search SAC Accredited Organisations – Advanced Search – Scheme to select “Inspection Bodies”- Field / Programme to select “Site Investigation and Instrumentation & Monitoring” - Area to select “Borehole Instrumentation, Strut Instrumentation”

Electronic transfer of site investigation data

Standardised Electronic Format: AGS(SG)

Previously, there was no common electronic format for submitting site investigation data in Singapore. To address this, BCA’s Singapore Geological Office (SGO) introduced AGS(SG) — a standardised format tailored to local needs while remaining compatible with internationally recognised formats for geotechnical and geophysical data.

The adoption of AGS(SG) enables data sharing across various systems and improves the efficiency and utility of geo-information.

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Resources