Checklist for Developers Contractors Choosing the Right QP S and Supervision Team for Your Next Build in Singapore

Introduction

Selecting the right Qualified Person and supervision team is the single most consequential decision a developer or main contractor makes before breaking ground on any building project in Singapore. Appointing the right Qualified Persons is critical for regulatory compliance, and getting it wrong exposes your project to stop-work orders, cost overruns, and protracted authority disputes that can derail timelines by months.

This guide covers the complete selection process for QP(Design), QP(Supervision), Resident Engineers, Resident Technical Officers, and the broader site supervision team for construction projects valued above $500,000. It is written for developers, main contractors, and project management professionals handling commercial, residential, industrial, and mixed-use builds under the singapore construction regulatory framework.

The direct answer: Successful QP selection requires verifying BCA registration and a valid practising certificate, assessing relevant project experience and authority submission track record, evaluating supervision team capacity against your project’s risk classification, and confirming professional indemnity coverage that matches your scope.

By following this checklist, you will gain:

• Regulatory compliance assurance – confidence that every statutory requirement is met from plan submission through statutory completion

• Project timeline protection – reduced revision rounds and faster authority approvals

• Cost control – fewer rework cycles, contractor disputes, and penalty exposures

• Quality delivery – structural integrity maintained through every critical stage

• Risk mitigation – proper escalation protocols and backup coverage for the entire project

Understanding Singapore’s QP Framework and Legal Requirements

A Qualified Person (QP) is legally accountable for project compliance under Singapore’s Building Control Act. This is not a discretionary appointment – it is a statutory requirement. The building control regulations mandate that every developer must appoint a QP to prepare plans and supervise building works. If a QP becomes unable or unwilling to perform, a replacement must be notified to the Commissioner of Building Control within 7 days, with failure attracting fines up to $20,000 or imprisonment up to 12 months.

Understanding this framework is non negotiable before evaluating any candidate. The QP must hold a valid practicing certificate renewed annually, and any regulated architectural work must likewise be undertaken by the appropriately registered professional with a valid practising certificate – without it, every document they sign is invalid and your project faces immediate legal exposure.

QP(Design) vs QP(Supervision): Distinct Roles and Responsibilities

The roles and responsibilities of a Qualified Person in Singapore split into two distinct statutory functions, and it is essential to clearly demarcate design and supervision roles to eliminate conflicts of interest.

QP(Design) is responsible for preparing all design documentation and plans, ensuring compliance with the Building Control Act, Building Regulations, Singapore Standard codes, Green Mark energy efficiency requirements, and the Fire Code. They coordinate architectural submissions and plan submission to the building and construction authority, URA, SCDF, PUB, and other relevant agencies. The QP(Design) must ensure that plan submissions include a site investigation report endorsed by a PE and that all submission requirements are met before lodgement.

QP(Supervision) ensures that construction as executed matches approved plans. Only one QP for supervision is allowed per project in Singapore – a single Qualified Person must supervise the entire project, providing continuity across all execution phases. The QP is responsible for submitting the Certificate of Supervision of Structural Works (C-Form) after structural works completion, and must report any contraventions of the Building Control Act to the Commissioner. Under the Fixed Installations Regulations effective 1 July 2025, the QP(Supervision) role carries enhanced duties for fixed installations including lifts, escalators, and mechanised parking systems.

Professional Engineer Registration and Specializations

A qualified person must be either a Professional Engineer registered with the Professional Engineers Board (PEB) or a registered architect with the Board of Architects (BOA). For structural works, civil engineering, and most technical building systems, you need a PE.

To become a registered PE, candidates must hold a recognised engineering degree, complete prescribed practical experience, and pass both the Fundamentals of Engineering Examination (FEE) and Practice of Professional Engineering Examination (PPE) in their relevant branch – civil, structural, mechanical, or electrical. The QP must hold a valid practicing certificate, which costs approximately S$150 per year and requires fulfilment of at least 40 Professional Development Units (PDUs) per renewal period, with a minimum of 20 from structured activities.

Specialist PE registration adds further rigour. For projects involving deep excavations, geotechnical works, or complex structural systems, matching the PE’s specialization to your project type is a critical step in due diligence.

Site Supervision Team Hierarchy, Site Supervision Plan, and Requirements

Beyond the project’s qualified person, the Building Control Act mandates appointment of qualified site supervisors for structural works. These include Resident Engineers (RE) and Resident Technical Officers (RTO), who must be accredited through the Joint Accreditation Committee (JAC) of IES and ACES.

The required supervision levels tie directly to project value:

• Up to $7.5 million: Supervision by QP, RE, or RTO

• $7.5 million to $15 million: Full-time supervision by RTO required

• $30 million to $75 million: Minimum 1 RE + 1 RTO during most phases

• Above $75 million: May require 2 RE + 3 RTO or 1 RE + 5 RTO depending on complexity

Projects over $7.5 million require full-time supervision – this is a statutory threshold, not a guideline. Assessment of site supervision staffing should match the project’s risk classification, as BCA’s Risk-Based Inspection Framework uses project type, location, and complexity to set requirements beyond simple value thresholds.

The QP must develop a Site Supervision Plan for the project. Site Supervision Plans are mandatory for all structural works, and a detailed site-specific supervision plan should outline inspection frequencies, protocols, and checkpoint reviews for materials at each critical construction stage.

With this regulatory framework clear, the next critical step is translating these requirements into practical evaluation criteria for selecting your QP and supervision team.

Critical Evaluation Criteria for QP Selection

Understanding the regulatory framework tells you what credentials to look for. This section provides the practical assessment factors – the key elements of a thorough evaluation that separates adequate QPs from exceptional ones. Developers should use a project-specific team selection checklist during personnel selection to ensure no criterion is missed.

Building and Construction Authority (BCA) Registration and Credential Verification

Credential verification is the first gate in your evaluation. Use a weighted evaluation matrix for selecting contractors based on various criteria, starting with these non negotiable checks:

1. Verify PE registration: Use the PEB’s “Find a Professional Engineer” directory to confirm active registration and valid practising certificate, including branch specialization

2. Confirm specialist accreditations: For projects requiring geotechnical, structural, or mechanical expertise, check the Specialist PE registry to ensure the specialization aligns with your scope

3. Validate corporate licensing: If engaging a professional engineering firm, confirm PEB licensing – this requires minimum paid-up capital of S$500,000, majority of directors holding valid PE practising certificates, and professional liability insurance

4. Check CPD compliance: Verify that the PE has fulfilled their 40 PDUs, particularly in structured courses relevant to your project – construction technology advances, fire safety codes, sustainability regulations, or recent regulatory changes

5. Screen for disciplinary issues: PEB publishes lists of suspended or deregistered PEs. Any PE under disciplinary action, with an expired practising certificate, or registered in the wrong branch is a disqualifying red flag

Participants must confirm their regulatory familiarity and check local code knowledge before shortlisting. BCA requires a builder’s license for construction projects – Class 1 General Builders can undertake projects of any value, while Class 2 General Builders are restricted to projects valued at S$6 million or less. Verify your builder’s registration status alongside your QP credentials.

Authority Submission Track Record, Temporary Occupation Permit, and Familiarity

Singapore’s compliance process involves multiple statutory authorities. Five agencies coordinate for full compliance in construction projects – BCA, URA, SCDF, PUB, and in some cases, the land transport authority or JTC. Your QP’s familiarity with each relevant authority directly impacts your timeline.

Evaluate the following:

• Submission success rates: How many projects similar in value and type have passed BCA structural design approvals within expected timeframes? BCA reviews submissions typically within 14 days under standard conditions – consistent delays suggest QP unfamiliarity with current submission requirements

• Revision round history: Experienced QPs with strong authority relationships can halve the number of plan revision rounds compared to less familiar practitioners. Ask for specific numbers from previous clients

• Current code knowledge: The QP must demonstrate understanding of BC 2013, Fire Code 2018, Green Mark requirements, the Mandatory Energy Improvement (MEI) regime introduced September 2024, and the Fixed Installations Regulations effective July 2025. Fire Safety Certificates are mandatory for public buildings over 200 occupants, and Temporary Fire Permits are required before any building occupation

• The Lodgment Scheme: For low-risk works, the Lodgment Scheme allows expedited approvals. A QP who understands when this pathway applies can save weeks on your schedule

Ensure proficiency with digital submission portals for regulatory clearances – QPs who still struggle with electronic submissions create unnecessary bottlenecks.

Project Portfolio and Technical Capability Assessment

Evaluate past project portfolios for expertise in specialized engineering challenges that match your building project. This assessment should focus on:

• Scope alignment: Review completed projects similar in building type, contract value, and complexity. A QP experienced in residential towers may lack the deep experience needed for industrial facilities with complex M&E systems or deep excavations

• Recent relevance: Prioritise projects completed within the past 2–5 years. Regulatory requirements evolve rapidly – experience with the 2025 Fixed Installations Regulations or the MEI regime matters more than a 15-year-old portfolio

• Technical problem-solving: Request detailed case studies where the QP handled unforeseen issues – unexpected soil conditions, site constraints, structural deviations, or materials compliance and substitution issues during the construction phase. How they managed technical issues under pressure reveals more than a polished project list

• Sustainability and energy integration: For projects requiring Green Mark certification or energy audits under the MEI regime, verify the QP’s capacity in these areas, including whether their team includes registered Energy Auditors

Key portfolio evaluation best practices:

• Request at least three references from previous clients on projects of comparable scope

• Verify claimed project involvement – was the QP the lead or a secondary contributor?

• Assess safety records and quality control routines during team selection

• Check whether the QP handled both design phase and construction supervision on referenced projects

With your evaluation criteria established, the next step is applying a systematic assessment methodology to compare candidates objectively.

Practical Assessment Methods and Decision Matrix

Moving from criteria to action requires a structured assessment process. Prequalification packages should cover relevant experience and safety records, but the real differentiation happens during interviews, site assessments, and capacity evaluations. Use a weighted evaluation matrix for selecting contractors based on various criteria to make objective comparisons.

QP Interview and Technical Assessment Process

Structured interviews are your primary tool for assessing capability beyond credentials. Conduct them with your project management team present and focus on four areas:

Technical competency questions:

• Walk us through your typical process for plan submission to BCA, URA, and SCDF. How many revision rounds have you navigated on your last three projects?

• How do you manage deviations between as-built conditions and approved plans? Provide a specific case where you dealt with non-compliance on-site

• What is your approach to coordination between structural, M&E, and fire safety disciplines? How do you avoid delays when multiple authority submissions run concurrently?

• Concrete pouring requires mandatory physical supervision on-site – describe your supervision protocol for this critical stage

Practical assessment:

• Provide sample drawings from your project and ask the QP’s team to review and mark up issues. This reveals their attention to detail and technical rigour far better than any interview answer, and whether they can identify where functional testing is required before sign-off

• Arrange a site visit to the QP’s current or recent project. Observe their coordination style, site records management, and hands-on supervision culture. Visual inspection of their active sites tells you whether they cut corners or maintain safety standards, but you should also verify documented checks on materials rather than relying only on observable site conditions

Authority relationship assessment:

• Who in the QP’s team liaises with each authority? Are there in-house specialists for fire safety, M&E, and sustainability, or is everything outsourced?

• How proactively has the QP adapted to recent relevant regulations – the Fixed Installations Regulations, Reportable Matters Regulations, Periodic Façade Inspection regime?

Communication and management evaluation:

• Supervisory teams should demonstrate effective communication and conflict resolution skills. How does the QP handle contractor disputes? What is their escalation protocol? How frequently do they provide progress reports?

• Engaging a Qualified Person early integrates compliance into design – assess whether the QP is willing to participate in pre-design planning or only engages after design completion

Supervision Team Capacity and Responsiveness Evaluation

Use the following decision matrix format when comparing supervision team options:

Evaluation Criterion	What to Assess	Minimum Acceptable Standard
Team Size and Availability	Current project workload, dedicated resources for your project	Team must meet BCA minimum staffing for your project value bracket
Backup Coverage	Holiday arrangements, RE/RTO deputies, emergency availability	Named backup for every key role; no single point of failure
Response Time Standards	Emergency response for safety hazards, RFI turnaround, documentation reviews	Structural/safety emergencies: same day. RFIs: 48 hours maximum
Site Experience	Relevant project type experience, local authority coordination history	Minimum 3 comparable projects within past 5 years
Certification Levels	RE and resident technical officer JAC accreditation, continuing education	Valid JAC accreditation; current CPD compliance verified
Construction Technology	Digital tools, BIM capability, electronic site records management	Proficiency with BCA digital portals; systematic documentation capability

When synthesising your evaluation, weight certification and experience most heavily – an experienced team with deep experience in your project type will outperform a larger but less specialised team. Also verify that the QP’s team is not over-committed across too many concurrent projects; supervision quality degrades rapidly when a site supervisor is split across multiple sites.

Establish measurable KPIs to monitor contractor performance during project execution. These should be agreed during selection and embedded into contracts.

Cost Structure and Contract Terms Analysis

QP fees are structured differently for design and supervision, and understanding these structures prevents budget surprises:

Fee structure comparison:

• QP(Design) fees are typically front-loaded – paid at plan submission, plan approval, and permit issuance milestones. Expect higher upfront costs but defined deliverables

• QP(Supervision) fees are periodic – monthly, by milestone, or by construction phase. Payment schedule should align with execution phases, with clear terms for what happens if the project timeline extends

• Ensure your contract specifies consequences for submission delays attributable to the QP and bonus/penalty structures for approval timelines

Professional indemnity insurance:

• PE firms licensed under PEB must hold professional liability insurance. Verify policy limits and confirm coverage extends to your project’s specific scope – including fixed installations, façade inspections, and temporary works where applicable

Contract terms to negotiate:

• Variation clauses: When authority requests redesign or site conditions change, who bears cost? Define this explicitly

• Additional submission fees: If submissions exceed agreed rounds due to builder or developer changes, how are top-up fees calculated?

• Payment milestones: Tie payments to verifiable deliverables – upon plan submission, upon plan approval, upon permit issuance, at construction milestones, and at temporary occupation permit / CSC issuance

Construction managers must maintain systematic documentation throughout the build. Your contract should require the QP to establish a rigorous system for maintaining mandatory construction records, including site records, inspection reports, and deviation logs.

Common Selection Challenges and Solutions

Even with a thorough checklist, developers and contractors encounter recurring challenges during QP selection. Recognising these patterns and applying proven solutions protects your building project from avoidable setbacks.

Limited Availability of Experienced QPs

Experienced PEs with both design and construction supervision capacity for large or complex projects are often scarce, particularly for specialist branches involving geotechnical works, fixed installation inspectors, or advanced sustainability features.

Solution: Engage well ahead – 3 to 6 months before your design phase commences. Build relationships with multiple QP firms so you are not scrambling when a project materialises. Consider co-QP models or specialist sub-consultants for elements like fixed installations, but ensure responsibilities and professional accountability are clearly defined legally. Continuous evaluation of subcontractor performance is vital after contract award, including monitoring the QP’s sub-consultants.

Misaligned Authority Experience

A QP may have strong general credentials but limited experience with the specific authorities your project requires. Some QPs know BCA and URA well but are unfamiliar with PUB drainage requirements, SCDF fire safety submissions for complex buildings, or JTC industrial zone regulations. For projects requiring planning permission in special zones or conservation areas, local authority nuances are decisive.

Solution: Verify specific authority experience matching your project location and type. Ask for submission histories to each relevant authority, including number of revision rounds. Assess recent submission experience within the past 12 months – recent regulatory changes like the Fixed Installations Regulations 2025 and the MEI regime may trip up QPs who have not kept current.

Inadequate Supervision Team Resources

Under-resourced site supervision is the birthplace of defects, safety hazards, variation orders, and delays. Industry experts emphasise that weak supervision, not design, causes most building project failures. Even excellent design cannot compensate for a site supervisor who is absent during critical phases.

Solution: Confirm dedicated team commitment and backup coverage arrangements before signing contracts. Ensure the supervision team meets BCA minimum staffing for your project value, with redundancy built in – if an RE is absent, who covers? Establish clear escalation procedures for site issues and emergency response. BCA requires periodic structural inspections every five years for non-residential buildings, and Periodic Structural Inspections reinforce the importance of ongoing quality oversight. A Temporary Occupation Permit (TOP) is required before occupancy, and deficient supervision during construction is the fastest route to TOP delays.

Cost vs Quality Trade-offs

Lower fees from less experienced QPs are seductive but frequently generate higher total costs through delays, re-submissions, defects, and rework. The long term value of an experienced, well-credentialed QP – measured in fewer submission rounds, fewer site issues, and faster authority approvals – almost always outweighs the fee premium.

Solution: Evaluate total lifecycle costs, not just fee quotes. A QP who achieves plan approval in one round versus three saves weeks of schedule and significant soft costs. Factor in the cost of potential rework, authority penalties, non-occupancy delays, and contractor disputes when comparing budget proposals. The right contractor and the right QP together create compounding efficiency – good management at both levels is what delivers projects on scope, on budget, and on time.

Conclusion and Next Steps

Choosing the right QP and supervision team requires systematic evaluation of credentials, authority experience, technical capability, supervision capacity, and contract terms. No single factor is sufficient – professional accountability demands rigour across every dimension. The stakes are clear: your QP’s competence directly determines whether your building project achieves statutory completion on schedule or becomes mired in regulatory delays and quality failures.

Immediate action steps:

1. Verify BCA registration and valid practising certificate for every QP candidate using PEB directories

2. Request project portfolios with detailed case studies from completed projects matching your scope and value

3. Conduct structured interviews using the technical assessment process outlined above

4. Assess supervision team availability, JAC accreditation, and backup coverage against your project’s risk classification

5. Shortlist candidates and compare using the weighted evaluation matrix

Sequential next steps:

1. Negotiate contracts with clear payment schedule milestones, variation clauses, and professional indemnity requirements

2. Establish communication protocols – regular site supervision meetings, deviation reporting, and authority liaison schedules

3. Define project milestones tied to authority approvals, from plan submission through temporary occupation permit

4. Implement ongoing QP relationship management and performance monitoring throughout the project lifecycle using agreed KPIs

For deeper guidance on specific aspects of this process, explore our resources on QP supervision requirements, PE qualifications and roles, and the design check process for Singapore construction projects. Early engagement with a qualified, experienced team is the single most effective investment you can make in your next build.