By 2030, 50% of vehicles in UK car parks will be electric. The fire safety implications are enormous — and current building designs aren't ready. This is the comprehensive guide for 2026.. The EV Revolution Meets Fire Safety The UK has committed to banning the sale of new petrol and diesel cars by 2035. The transition to EVs is accelerating: 1.2 million pure EVs on UK roads (2025) Projected by 2030: 8 million+ Government target: 300,000 public charge points by 2030 Building Regulations: all new buildings must provide EV charging infrastructure This is transforming the fire risk profile of every car park in the country. The Fire Risk Reality EV vs ICE Fire Behaviour Characteristic Petrol/Diesel Electric Vehicle Fire peak temperature 800 1,000°C 1,000 1,500°C Fire duration 45 60 min 2 8 hours Toxic gases CO, HCN CO, HCN, HF, POF₃ Re ignition risk Low High (hours/days later) Water for suppression 2,000 3,000 litres 10,000 40,000 litres Fire spread rate Moderate Fast (thermal runaway) Key Design Challenges 1. Ventilation — EV battery fires produce more and different toxic gases 2. Structural fire resistance — longer duration fires impose greater structural loading 3. Water supply — dramatically higher water demand for EV fire suppression 4. Drainage — contaminated fire water from battery electrolyte 5. Detection — thermal runaway detection before visible fire 6. Firefighter access — safe approach routes with battery fire toxicity Design Solutions for 2026 Ventilation Design BS 7346 7 still applies but must be supplemented for EV specific scenarios CFD modelling with EV fire HRR curves (3 5 MW vs. 2 3 MW for ICE) Consider hydrogen fluoride extraction — denser than air, accumulates at low level Jet fans sized for 15 20% higher capacity than ICE only design Suppression Deluge sprinklers over charging bays — higher density than standard ESFR High pressure water mist — effective for battery cooling without excessive water Battery containment systems — fire blankets for vehicles that can't be moved Isolation trenches — preventing contaminated water spread Magnus Opifex designs EV ready car parks with comprehensive fire engineering. Contact us.