A submission can stall before technical review even begins if the wrong Qualified Person (QP) is appointed, the appointment scope is unclear, or the design disciplines are not coordinated. For owners, developers, contractors, and building managers, knowing how to appoint QPs is therefore not an administrative exercise. It is an early project-control decision that affects design accountability, authority submissions, construction timing, and compliance exposure.
In Singapore, a QP is generally a registered architect or professional engineer appointed to prepare, submit, supervise, or endorse works within their professional discipline. The correct appointment depends on the nature of the proposed works, the approval pathway, and which authority requirements apply. A renovation that changes structural loading, a factory addition, a façade alteration, and a fire safety upgrading project may each require a different combination of professional appointments.
Start With the Approval and Project Scope
Do not appoint a QP based only on a broad description such as “renovation” or “A&A works.” Define what is physically changing and what approvals are likely to be triggered. This should include proposed changes to building use, floor area, layout, fire compartments, escape routes, structural members, façades, drainage, mechanical and electrical systems, and site access.
For example, removing a non-load-bearing partition may appear straightforward. However, if the revised layout affects fire-rated separation, means of escape, mechanical ventilation, or the intended use of the space, the project may involve architectural, fire safety, and M&E coordination. Likewise, installing equipment in an industrial building may introduce new structural loads, vibration issues, fire safety implications, and utility requirements.
The QP should be appointed against a written scope that identifies the intended work, existing building information available, expected construction sequence, and required authority submissions. This gives the appointed professional a clear basis to assess whether the proposal is feasible and whether other specialists are needed.
Identify Which QP Discipline Is Required
A QP is not a single interchangeable role. The appointment must match the discipline and statutory responsibility involved.
An architect commonly leads architectural works and development-related submissions, including building layout, use, accessibility, envelope changes, and coordination of building plans. A Professional Engineer may be required where structural, civil, mechanical, electrical, or other engineering systems fall within the scope of works. Depending on the project, the QP team may need to coordinate with a Registered Inspector, fire safety professional, façade inspector, accredited checker, surveyor, or other competent persons.
The practical question is not simply whether a QP is required. It is whether the appointed QP has the appropriate registration, experience, and authority-submission capability for the exact work proposed. A QP experienced in residential interior alterations may not be the right fit for an industrial change of use, heavy equipment installation, façade rectification, or complex fire safety upgrading.
Where a project crosses disciplines, appointing one lead consultant does not eliminate the need for discipline-specific accountability. It does, however, make coordination more manageable when the lead consultant can organize drawings, technical inputs, submissions, and responses across the project team.
How to Appoint QPs With Clear Responsibilities
The appointment letter or consultancy agreement should state more than the project address and a general service description. It should define what the QP is being engaged to do, what information the client must provide, and which tasks remain outside the appointment.
At minimum, clarify the following items before work begins:
- The proposed works, affected areas, and intended building use
- Required inspections, surveys, calculations, drawings, and technical reports
- The authorities expected to be involved, such as BCA, URA, SCDF/FSSD, PUB, LTA, JTC, HDB, NEA, or NParks
- Submission, endorsement, permit, inspection, and completion responsibilities
- The role of other consultants, contractors, specialists, and the owner
- Site supervision expectations, design changes, and record-drawing requirements
This level of definition protects both the client and the QP. A QP cannot responsibly endorse works based on incomplete site information, undocumented alterations, or contractor-led changes that were never reviewed. Conversely, the owner should understand whether the quoted fee covers only initial submission or also includes authority queries, revised plans, site inspections, temporary works review, completion documentation, and follow-up submissions.
A low initial fee can become costly if the appointment excludes the work required to resolve authority comments or address existing non-compliance. Compare proposals by scope, deliverables, assumptions, and exclusions, not by fee alone.
Verify Registration, Experience, and Capacity
Before confirming an appointment, verify that the professional is properly registered for the discipline in which they will act and is able to take on the proposed role. Registration is essential, but it is only the starting point.
Ask whether the QP has handled similar building types, approval routes, and technical issues. For a warehouse conversion, relevant experience may include change-of-use assessments, fire compartmentation, loading review, egress planning, and industrial authority requirements. For a façade project, it may include façade inspection, defect investigation, access constraints, repair specifications, and rectification sequencing.
Capacity also matters. A capable QP with no availability to inspect the site, coordinate revisions, or respond to authority comments can create the same project delay as an unsuitable appointment. Confirm the expected submission timeline, review milestones, information required from the client, and who will manage day-to-day coordination.
For occupied buildings, also discuss access restrictions, operating hours, tenant interfaces, safety procedures, and shutdown requirements early. These constraints often influence the feasibility of investigation works, inspections, and construction sequencing.
Give the QP Complete and Accurate Information
The quality of a QP appointment depends heavily on the information provided at the start. Existing approved plans, past permits, structural drawings, fire safety records, topographical surveys, building maintenance records, and photographs can materially reduce uncertainty.
Older buildings frequently contain undocumented alterations. A ceiling may conceal beams, services, fire protection systems, or prior modifications that conflict with current drawings. A responsible QP may recommend site verification, measured surveys, trial openings, structural scans, or condition assessments before finalizing design and submission documents.
Treat these investigations as risk-control measures, not unnecessary preliminaries. Designing around assumptions can lead to redesign, contractor claims, stop-work conditions, or rejected submissions when actual site conditions differ from available records.
The owner should also identify intended operational changes. New machinery, increased occupancy, storage changes, commercial cooking, data rooms, laboratories, or revised tenancy arrangements can change the compliance position even where the building fabric appears largely unchanged.
Coordinate the QP, Contractor, and Specialists
The QP is responsible for professional work within the appointment, but project compliance cannot be delivered by the QP in isolation. Contractors must build in accordance with approved plans and specifications. Suppliers must provide accurate technical data. Owners must avoid instructing unreviewed changes during construction.
Establish a clear process for design changes. Any change affecting structure, fire safety, façade performance, drainage, building layout, or approved use should be referred back to the QP before implementation. A change that appears minor on site can affect an approval condition, code requirement, or coordinated engineering design.
Regular coordination is particularly important for additions and alterations. Structural openings may conflict with M&E services; architectural finishes may conceal required fire stopping; and equipment locations may exceed allowable slab loading. These issues are cheaper to resolve during coordinated design than after installation.
A multidisciplinary consultancy can reduce handoff risk by coordinating architectural, structural, civil, M&E, fire safety, inspection, and authority-submission work under a defined project lead. Aman Engineering Consultancy supports this approach through integrated technical assessments, statutory submissions, design coordination, and rectification support for building projects with multiple compliance requirements.
Do Not Treat Appointment as a One-Time Signature
After the QP is appointed, maintain the appointment through the full project lifecycle. Confirm that site conditions remain consistent with the submitted design, authority comments are tracked, construction changes are reviewed, and required inspections or completion documentation are planned before handover.
The correct QP appointment gives the project a responsible technical lead, but it does not guarantee approval if information is incomplete or works change without control. The strongest outcome comes from early scope definition, suitable professional expertise, disciplined coordination, and timely decisions when site findings require a revised approach.
Appoint the QP before design commitments and construction decisions harden. That is when professional advice has the greatest ability to prevent avoidable submissions, rework, and compliance risk.