Overview
- The Department for Transport published the draft Heathrow Expansion National Policy Statement and opened a 10-week public consultation, which media reports show was released on Thursday and starts the formal route toward a final planning decision in 2029.
- The government has designated expansion as critical national growth infrastructure and set four statutory tests requiring clear economic benefits, compatibility with legally binding climate targets, no new legal air‑quality breaches, and noise no worse than 2024 levels.
- Ministers signalled an appetite for phased delivery and competitive tenders, keeping both Heathrow Airport Limited’s full‑length 3,500m runway plan and the Arora Group’s shorter 2,800m phased option in play.
- Officials and developers say the full‑length HAL scheme would be privately financed and cost about £33 billion with a c.£1.5bn M25 reroute, while proponents say phased build could open capacity sooner and help meet the government’s aim of starting work in this Parliament and finishing by 2035.
- Local leaders, the Mayor of London and climate groups warned the consultation is too short and raised concerns over noise, pollution and climate impact, leaving mitigation measures, community compensation and the risk of political or legal challenges as key unresolved hurdles.