The British government — any government — is potentially the worst [architectural] client in the world.

Heatherwick’s remark frames government as a uniquely difficult patron for architecture and design. Public-sector clients must answer to voters, auditors, procurement rules, and shifting political leadership, which can make decision-making slow, risk-averse, and prone to compromise. By adding “any government,” he generalizes beyond Britain: the problem is structural, not merely national. The bracketed “architectural” signals that his criticism is aimed at the commissioning process—briefs, approvals, budgets, and accountability—rather than at public service itself. The quote also implies a tension between ambitious, imaginative design and institutions optimized to minimize controversy and liability, often producing cautious outcomes.