PEB-registered Professional Engineers for structural, mechanical and temporary works endorsement in Singapore — Er. David Zheng Zhijian (PE Civil, PEB No. 4385) and Er. Lu Min Thet (PE Mechanical, PEB No. 4379). Fixed-fee quotation within one working day.
Prepared by Er. David Zheng Zhijian, PE (Civil) PEB No. 4385 · Mechanical scope by Er. Lu Min Thet, PE (Mechanical) PEB No. 4379 · Last reviewed 9 October 2026
PE endorsement is the signing and sealing of engineering drawings, calculations or reports by a Professional Engineer registered with the Professional Engineers Board (PEB) who holds a valid practising certificate. It confirms that the engineering design has been prepared or checked by that PE, who takes professional responsibility for it.
In practice, the endorsed document can be a short PE assessment letter, a set of structural calculations, endorsed drawings, or a full submission package prepared by the appointed Qualified Person (QP). What you need depends on who is asking for it and why.
Under the Professional Engineers Act 1991, professional engineering work may only be carried out by a registered PE with a practising certificate, and only in the branch they are registered in. You can check any engineer on the PEB directory.
Not every renovation needs a PE. The requirement comes from a law, an authority, or a stakeholder — and that determines what the PE must produce.
| Source of the requirement | Typical examples |
|---|---|
| Statutory — Building Control Act 1989 | Building works needing BCA plan approval and a permit for structural works, submitted by the appointed QP. Works without the required approval or permit are an offence under section 20 (fine up to S$200,000 and/or up to 2 years' imprisonment). |
| Statutory — WSH regulations (MOM) | Certain temporary structures, such as some scaffolds and formwork, must be designed by a PE depending on their type and size. |
| Authority requirement — HDB | Removal of a non-structural reinforced-concrete (RC) wall in an HDB flat needs HDB approval and PE (Civil/Structural) supervision. Structural RC elements in HDB flats must not be altered. |
| Stakeholder requirement | MCSTs, landlords, insurers and financiers often ask for a PE letter or endorsed drawings for openings, mezzanines, heavy equipment, signage or fit-out works. |
| Professional recommendation | Where no rule applies but the works affect load paths — for example a heavy aquarium, safe or water tank on a slab — a PE check is advisable. |
Unsure? Send us your layout and any letters you have received — we will tell you whether a PE is needed before you commit.
A PE may only endorse work within their registered branch. Using the wrong discipline is a common cause of rejected submissions.
| Type of works | Appropriate PE | At QP.sg |
|---|---|---|
| Walls, slabs, beams, mezzanines, steel structures, A&A structural works, hoardings and temporary works | PE (Civil) | Er. David Zheng Zhijian, PEB No. 4385 |
| ACMV, mechanical services, fire-protection systems | PE (Mechanical) | Er. Lu Min Thet, PEB No. 4379 |
| Deep excavations, retaining walls, foundations and other geotechnical building works | Accredited specialist PE (Geotechnical) | We can advise and coordinate |
| Electrical installations | PE (Electrical) | We can advise and coordinate |
Missing some of these? Send what you have — we will confirm what is essential at the quotation stage. For a fuller walkthrough, read how to get PE endorsement in Singapore.
WhatsApp or the enquiry form with a short description of the works, the property type and who is asking for the PE endorsement.
We review your drawings and photos and send a fixed-fee quotation with the deliverable, inclusions and timeline within one working day.
Required where as-built drawings are missing, existing conditions must be verified, or structural alterations are proposed.
The PE checks the structural system, loads and code compliance and prepares calculations.
Drawings or the PE letter are prepared in the required format, then signed and sealed with the PEB registration number.
Where a statutory submission is needed, the appointed QP files it and responds to authority queries within the agreed scope.
QP.sg fees start from S$500 for simple assessments and from S$1,200 for BCA A&A structural submissions, with larger projects up to around S$50,000. Every job receives a fixed-fee quotation after we review the documents.
| Service Type | Typical Scope | From (SGD) |
|---|---|---|
| HDB Non-Load-Bearing Wall Assessment | Structural assessment letter for MCST/HDB | $500 |
| HDB Non-Structural RC Wall Removal — PE Supervision | PE supervision and RC repair check, as required by HDB | $800 |
| Condo / MCST Structural PE Endorsement | Structural assessment + drawings for MCST approval | $800 |
| Mezzanine / Loft Structural PE | Design calculations + endorsed structural drawings | $1,200 |
| Temporary Works (hoarding / scaffolding) | MOM/BCA compliant temporary works PE endorsement | $700 |
| BCA A&A Structural Submission | Full submission package, calculations, resubmission support | $1,200 |
| Structural Inspection & Report | Site inspection + written PE report | $900 |
See the full PE endorsement cost guide for more detail.
| Type of works | Typical PE turnaround |
|---|---|
| Simple HDB-related endorsements | 2–5 working days |
| Temporary works (hoardings, scaffolding) | 3–7 working days |
| BCA submissions | 1–3 weeks, plus authority processing time |
Times assume complete documents. Site inspections, missing drawings and authority queries add time. Priority handling is available for urgent projects.
A PE endorsement is not an approval. The PE certifies the engineering; BCA, HDB, SCDF or the relevant authority then decides whether to approve, and may ask questions or require changes first. No engineer can guarantee approval.
For BCA, submissions are made through CORENET. Under the URA/BCA circular of 23 July 2026, the CORENET X Gateway is mandatory for new projects of 5,000 m² gross floor area or more from 1 October 2026; smaller projects can still use the existing system for now. See QP submission services for how the Qualified Person role works.
PE endorsement is the signing and sealing of engineering drawings, calculations or reports by a Professional Engineer registered with the Professional Engineers Board (PEB) who holds a valid practising certificate. It certifies that the engineering design has been prepared or checked by that PE and takes professional responsibility for it.
No. PE endorsement certifies the engineering. Approval is a separate decision by BCA, HDB, SCDF or another authority, which may raise queries or require changes before approving. No engineer can guarantee approval.
Typically when building works need BCA plan approval and a permit for structural works, when HDB requires a PE to supervise removal of a non-structural reinforced-concrete wall, when MOM regulations require a temporary structure to be designed by a PE, or when an MCST, landlord or insurer asks for it. Cosmetic works that do not affect the structure usually do not need a PE.
QP.sg fees start from S$500 for a simple HDB non-load-bearing wall assessment, S$700 for temporary works, S$800 for condo/MCST structural endorsement, and S$1,200 for BCA A&A structural submissions, with larger projects up to around S$50,000. A fixed-fee quotation is given after reviewing your documents.
With complete documents, simple HDB-related endorsements typically take 2–5 working days, temporary works 3–7 working days, and BCA submissions 1–3 weeks plus the authority's processing time.
Structural works need a PE (Civil). Mechanical works such as ACMV and fire-protection systems typically need a PE (Mechanical). Geotechnical building works need an accredited specialist PE (Geotechnical), and electrical installations a PE (Electrical). A PE may only practise in their registered branch.
No. HDB does not allow existing structural reinforced-concrete elements in flats to be tampered with. Removing a non-structural RC wall needs HDB approval and PE (Civil/Structural) supervision; lightweight partition walls need HDB approval, but HDB's guidelines do not require a PE for them.
More answers in our PE endorsement FAQ.
Send the following on WhatsApp (+65 9800 4385), by email to pe@qp.sg, or through the enquiry form:
You will receive a fixed-fee quotation within one working day. Related services: HDB wall hacking, temporary works, renovation & A&A works, BCA submission.
Working on a project with precast structural components manufactured outside Singapore? See our Qualified Person services for overseas precast production.
Send us your drawings or describe your project. We'll confirm whether PE endorsement is required and provide a fixed-fee quote within one working day.