Direct specialist involvement
Work directly with senior advisers who maintain accountability from the initial review through to analysis and recommendations.
About Constructive Advisory
Independent advice.
Integrated expertise.
Independent senior-level construction advice across contractual claims, delay analysis, quantum, cost and dispute resolution for contractors, developers, consultants and legal teams in Singapore and Asia-Pacific.
Constructive Advisory Pte. Ltd. is an independent Singapore consultancy and is not affiliated with similarly named businesses operating elsewhere.
Why Constructive
Specialist thinking across contract, time and cost.
Construction claims rarely turn on one discipline alone. A defensible position connects contractual entitlement with programme evidence, valuation, and the facts on the ground.
Constructive Advisory combines Sam’s planning, delay and claims expertise with John’s contractual, quantum and commercial advisory experience. Clients receive practical senior-level support for live projects, final accounts, negotiations, adjudication and arbitration, whether engaged for one issue or across a portfolio.
Connected contractual, time and cost advice
Contractual entitlement, programme impact and financial consequences are considered together rather than in isolation.
Flexible, proportionate engagement
Support can be provided for a single issue, a live project or an entire portfolio, directly or alongside legal and specialist teams.
Our people
Two specialists. Complementary expertise.
Sam leads the practice and specialises in programming, delay and disruption, EOT claims and dispute support. John provides senior contractual, quantum and commercial expertise, including variations, payment claims, loss and expense, final accounts and dispute resolution. Together, the approach connects time, entitlement and cost.
Programming, Delay & Claims
Sam Nason
Director
Director specialising in construction programming, EOT claims, disruption and forensic delay analysis, with extensive experience supporting contractual claims, negotiations and arbitration.
20+ years50+ projectsClaims & ADR
Contractual, Quantum & Disputes
John Leong
Executive Advisor – Contractual, Quantum & Dispute Resolution
Executive-level contractual and quantum advisory support for variation and payment claims, loss and expense, final account settlement, commercial risk and construction dispute resolution.
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RICS Registered Expert Witness
Sam Nason is the primary contact for enquiries, including matters requiring John’s contractual and quantum expertise. Services are provided through Constructive Advisory Pte. Ltd., subject to conflict checks, an agreed scope and terms of engagement.
Working with the practice
Four clear stages from first review to final deliverable.
Each project engagement or ongoing portfolio retainer follows a defined sequence while remaining proportionate to the issue. Additional work is undertaken only where the scope, timing and commercial basis are agreed.
Clarify the issue and immediate decision.
- Identify the project, parties and current position
- Understand deadlines and the immediate objective
- Review the available records at a high level
- Confirm whether the matter is suitable to progress
Define proportionate work and clear boundaries.
- Agree deliverables and intended audience
- Set the programme, dependencies and fee basis
- Record assumptions, exclusions and interfaces
- Complete conflict and engagement checks
Test the evidence before forming conclusions.
- Review contractual, programme and factual records
- Build chronologies, issue matrices or analyses
- Identify gaps, limitations and competing explanations
- Keep findings tied to the decision required
Provide practical findings and next steps.
- Issue concise advice, reports or supporting exhibits
- Explain assumptions and limitations clearly
- Support review, negotiation or formal proceedings
- Update the scope only where additional work is agreed
Principles
Independent. Evidence-led. Constructive.
Facts, assumptions and opinions are separated, evidence is tested rather than forced into a preferred narrative, and technical issues are communicated in language decision-makers can use.