PE Endorsement Singapore: Complete Guide 2025/2026

1. What Is PE Endorsement in Singapore?

A PE endorsement in Singapore is the formal certification by a Professional Engineer (PE) registered with the Professional Engineers Board (PEB) Singapore, confirming that proposed structural or engineering works comply with the Building Control Act (Cap. 29), relevant Singapore Standards (SS EN Eurocodes), and the submission requirements of the applicable authority.

When a PE endorses your engineering drawings and calculations, they are taking personal professional and statutory liability for the technical adequacy and safety of the design. Their PE stamp, PEB registration number, and wet signature (or digital equivalent) transform technical documents into authority-submittable materials that BCA, HDB, SCDF, or LTA will accept.

The endorsement confirms four things:

• The engineering design is technically sound and meets applicable codes
• Structural loads have been correctly assessed and accounted for
• The proposed works do not compromise the safety of the building or its occupants
• A qualified, accountable professional has reviewed and takes responsibility for the design

2. When Is PE Endorsement Required?

PE endorsement is not required for every renovation or building project, but it is mandatory — and legally enforceable — in the following situations.

Residential Works (HDB Flats & Condominiums)

• Load-bearing or structural wall hacking: Any wall identified as structural in HDB's records or the building's structural drawings requires PE endorsement before hacking can proceed. This applies to HDB flats, condominiums, and landed properties.
• Non-load-bearing wall hacking (MCST-mandated): Many MCSTsrequire PE structural certification even for non-load-bearing walls in condominiums, as the MCST uses this to transfer liability.
• Mezzanine floors and lofts: Installing a raised platform or mezzanine level in a unit with double-volume ceiling height requires structural PE endorsement for both the supporting structure and the slab it bears on.
• Change of use (increased floor loading): Converting a residential unit to an F&B outlet, gym, or heavy storage facility requires PE assessment of increased live loads.

Construction and Commercial Works

• BCA building plan submissions: Under the Building Control Act, all structural drawings submitted to BCA for approval must be endorsed by a PE (Civil/Structural).
• Addition and alteration (A&A) works: Significant A&A works on existing buildings — particularly those involving structural modifications — require PE endorsement for BCA submission.
• Temporary structures: Hoardings, scaffolding, shoring, false work, and earth retaining structures all require PE endorsement under MOM's Workplace Safety and Health (Design for Safety) Regulations.
• SCDF fire safety submissions: Where fire safety works interface with structural elements (e.g., fire-rated wall penetrations, sprinkler system support), PE endorsement may be required alongside the SCDF submission.

3. Who Can Provide PE Endorsement in Singapore?

Only a Professional Engineer registered and in good standing with the Professional Engineers Board (PEB) Singapore can legally provide PE endorsement. The PEB is the statutory body established under the Professional Engineers Act that governs the practice of professional engineering in Singapore.

PE registration in Singapore is discipline-specific:

• PE (Civil): Structural and civil works — the relevant discipline for most building and renovation endorsements
• PE (Mechanical): M&E systems, ACMV, process engineering
• PE (Electrical): Electrical systems and power distribution
• PE (Chemical): Process plants and chemical facilities

A PE (Civil) cannot legally endorse mechanical works, and vice versa. Always verify a PE's registration number and discipline on the PEB's public register at peb.gov.sg before engaging them.

QP.sg provides PE endorsement services through Er. David Zheng Zhijian, PE (Civil), PEB Registration No. 4385, for structural and civil works, and Er. Lu Min Thet, PE (Mechanical), PEB Registration No. 4379 for M&E works. Both engineers are in good standing with the Professional Engineers Board Singapore. Verify registrations at peb.gov.sg.

4. The PE Endorsement Process — Step by Step

Here is what the typical PE endorsement process looks like when working with QP.sg.

Step 1: Initial Enquiry and Document Submission

Contact QP.sg via WhatsApp or the enquiry form with a brief description of your project. Attach or share: existing floor plans, photos of affected areas, proposed works description, and any correspondence from HDB, BCA, MCST, or your landlord.

Step 2: Scope Assessment and Fee Quotation

Our engineering team reviews your documents and provides a fixed-fee quotation and estimated timeline within one working day. No obligation at this stage.

Step 3: Site Visit (Where Required)

For complex structural works or where as-built drawings are unavailable, a site visit may be necessary to assess structural elements directly. This is quoted separately if required.

Step 4: Structural Engineering Assessment

The PE conducts a full structural review: load analysis, code compliance check against BCA structural Eurocodes (SS EN 1992–1995), and assessment of proposed modifications against the building's existing structural system.

Step 5: Drawing and Calculation Preparation

Where drawings are required (rather than just a PE assessment letter), structural drawings and supporting calculations are prepared in the format required by the relevant authority.

Step 6: PE Endorsement and Delivery

Documents are stamped with the PE seal, PEB registration number, and signed. Digital copies are delivered electronically; physical sealed copies are available where the authority requires them.

Step 7: Authority Submission and RFI Support

For services where QP.sg handles authority submission, we file the endorsed documents and manage any RFIs (requests for information) from BCA or HDB at no additional cost for matters within the original scope.

5. PE Endorsement Costs in Singapore (2025/2026)

PE endorsement fees in Singapore vary significantly based on project type, structural complexity, documentation quality, and the number of authorities involved. Below are realistic indicative ranges based on typical projects.

All fees are indicative starting points. Fixed-fee quotes specific to your project are available from QP.sg within one working day. See full pricing guide →

Key factors that affect PE endorsement fees in Singapore:

• Documentation quality: Complete as-built drawings reduce assessment time and cost significantly
• Structural complexity: Load-bearing modifications require more extensive calculations than simple non-structural assessments
• Number of authorities: Projects requiring submissions to multiple agencies (e.g., BCA + HDB) incur higher fees
• Urgency: Priority processing for urgent deadlines may attract a surcharge
• Site visits: Required where as-built drawings are unavailable or unreliable

6. Documents to Prepare

The faster and more completely you provide documentation, the faster your PE endorsement can be delivered. Here is what to prepare:

• Existing floor plans and as-built drawings — architectural and structural (from HDB or developer if available)
• Proposed layout or renovation drawings — showing what is to be changed
• Site photographs — of affected walls, floors, ceilings, and structural elements
• Contractor's method statement — for structural or demolition works
• Authority correspondence — any letters from HDB, BCA, MCST, or landlord specifying requirements
• Survey plans (for BCA A&A submissions) — showing plot boundaries and existing building envelope

If you do not have all of these, send what you have. QP.sg will advise what is essential versus what can be obtained or waived for your specific project type.

7. Getting Started with QP.sg

QP.sg provides PE endorsement, QP submission, and structural and M&E engineering services across Singapore. Our engineers are Er. David Zheng Zhijian (PE Civil, PEB No. 4385) and Er. Lu Min Thet (PE Mechanical, PEB No. 4379) — both registered with the Professional Engineers Board Singapore.

To get started, WhatsApp us at +65 9800 4385 or use the enquiry form on our contact page. Describe your project briefly, attach any available drawings or photos, and we will provide a fixed-fee quote within one working day.