In Singapore, Professional Engineer (PE) endorsement is often required for structural, architectural, and M&E works before submission to the Building and Construction Authority (BCA) and other agencies like SCDF, URA, and PUB.

Many clients—whether property owners, contractors, or developers—are unsure of when and why PE endorsement is needed. To help clarify, here are the top 5 most common questions we get about PE endorsement in Singapore, along with expert answers.

When is PE Endorsement Required?

PE endorsement is typically required when:

• Structural works are involved (e.g., removal of load-bearing walls, construction of mezzanine floors, excavation)

• Temporary works are carried out (e.g., scaffolding, hoardings, shoring)

• Fire safety–related designs need approval (SCDF submissions)

• Mechanical & electrical (M&E) works impact safety or utility connections (PUB, EMA)

If in doubt, always check with a PE before starting works—unauthorized works without PE endorsement can lead to penalties.

How Much Does PE Endorsement Cost?

The cost depends on the type, scale, and complexity of the works.

• Minor submissions: $2,000 – $5,000

• Temporary works (scaffolding, hoardings, shoring): $3,000 – $8,000

• Structural alterations (mezzanine floors, wall removals): $5,000 – $15,000+

• Large-scale industrial/commercial submissions: $10,000 – $30,000+

💡 Tip: Fees increase if retrospective endorsement or rectification is required.

What Happens if I Don’t Get PE Endorsement?

Skipping PE endorsement can lead to:

• Stop Work Orders from BCA

• Fines and penalties for unauthorized building works

• Demolition orders for non-compliant structures

• Insurance claim issues if accidents occur

• Problems with property transactions

In short: it’s always cheaper and safer to engage a PE before starting any building works.

How Long Does the PE Endorsement & Approval Process Take?

• The timeline varies depending on submission type:

  • Straightforward submissions (minor works): 2 – 4 weeks

  • More complex cases (structural alterations, fire safety, PUB): 1 – 3 months

  • Retrospective submissions for unauthorized works: 3 – 6 months or longer

  👉 The timeline can be delayed if drawings, calculations, or rectification works are incomplete. Working with an experienced PE helps minimize delays.

Can I Apply for Retrospective PE Endorsement if Works Are Already Done?

Yes—but it’s usually more costly and time-consuming.

A PE must inspect the completed works, verify structural safety, and may require rectification or strengthening before endorsement. Only then can the submission be made to BCA or other authorities.

If the works are unsafe or non-compliant, demolition may be required.

Final Thoughts

PE endorsement is not just an administrative requirement—it’s about ensuring safety, compliance, and long-term integrity of buildings and infrastructure in Singapore.

By understanding the top 5 questions clients ask about PE endorsement, you can plan your project better, avoid penalties, and ensure smooth authority approvals.

Need Help with PE Endorsement in Singapore?

At AEC Technical Advisory, our team of qualified Professional Engineers can assist with:

• Structural, M&E, and fire safety submissions

• Temporary works endorsement (hoardings, scaffolding, excavation)

• Retrospective endorsement for unauthorized works

• End-to-end submission to BCA, URA, SCDF, PUB

👉 Contact us today to discuss your project and ensure smooth approval.