SuDS / planning permission
Since 2008 (England) and 2020 onwards (devolved UK) any front-garden driveway over 5m² must use a permeable surface or direct runoff to a soakaway. Resin-bound is permeable and SuDS-compliant by default. Standard block paving is not — only permeable block (with widened jointing) qualifies. This is a common 2026 refusal cause.