Procurement Routes in Architecture: Choosing the Right Approach
A comprehensive guide to the main UK procurement routes — traditional, design and build, construction management, and management contracting — with guidance on selecting the right route.
Procurement route selection is one of the most consequential decisions in any building project, determining risk allocation, the architect's role, cost control method, and programme.
Traditional Procurement (Design-Bid-Build)
Characteristics: Architect designs fully before tendering; contractor selected competitively; clear separation between design and construction.
Architect's Role: Dominant — leads design, prepares tender documentation, administers the building contract.
Appropriate for: Design quality priorities; publicly funded projects; heritage and conservation work.
JCT Forms: SBC/Q (Standard Building Contract with Quantities).
Design and Build (D&B)
Characteristics: Client provides Employer's Requirements; contractor takes design responsibility; single point of accountability.
Architect's Role: Variable — may be novated to the contractor at tender stage, shifting contractual loyalty from client to contractor.
Appropriate for: Cost and programme certainty priorities; repetitive building types; developer-led projects.
Risk Warning: Post-novation, the architect may face pressure to compromise the design. This is a significant professional risk that must be understood before accepting novation.
JCT Forms: DB 2024 (Design and Build Contract 2024).
Construction Management
Individual trade contractors contracted directly with the client; construction manager manages process; architect retains full design authority. Appropriate for complex, fast-track projects with experienced clients.
NEC4 vs JCT
JCT: Dominant in UK private sector building; prescriptive; detailed provisions; 2024 suite includes updated payment provisions and sustainability clauses.
NEC4: Preferred in public sector and infrastructure; collaborative ethos; emphasis on early warning and proactive management; Option A-F provides different risk allocations.
Contract Administration
As Contract Administrator under JCT, the architect must issue instructions, certify payments, value variations, grant extensions of time, and issue completion certificates. Crucially, the Contract Administrator acts as an impartial certifier, not simply the client's agent.