A major road in north-west London has been shut in both directions this morning after a building fire broke out in Wembley.
The A404 Harrow Road is closed between Chaplin Road in Sudbury and Talbot Road in Wembley while emergency services deal with the incident, with queueing traffic building on surrounding routes.
This is a developing story — follow live updates below.
What we know so far
The closure was put in place this morning after firefighters were called to a building fire in the Wembley area. Harrow Road — one of the main arteries through this part of north-west London — is shut to all traffic in both directions along the affected stretch.
London buses are also caught up in the disruption. Routes 18, 92, 182 and 204 are being diverted around the closure while emergency services work at the scene, and passengers are advised to check TfL’s live travel updates before setting out.
Traffic is reported to be queueing around the closure, with delays spilling onto surrounding roads as drivers seek alternative routes through Sudbury and Wembley.
Why this closure bites
Harrow Road is one of those unglamorous but indispensable London roads — a former Roman route that has carried traffic west out of the capital for two millennia, and today funnels buses, delivery vans and commuters between Harlesden, Stonebridge, Wembley and Sudbury. When a stretch of it closes at morning peak, there are few good alternatives: the North Circular is the obvious relief route, but it is already heavily loaded at this hour, and the residential streets in between were never designed for through traffic.
The timing makes it worse. With schools, workplaces and Wembley’s own commercial centre all drawing traffic into the area, a both-directions closure between two busy junctions creates exactly the kind of gridlock that takes hours to unwind — even after the road reopens, the tailbacks need time to clear.
How the response works
When the London Fire Brigade deals with a building fire on or near a major road, closing the carriageway is standard practice — and not only because of the flames. Fire appliances need room to position, hose lines often have to cross pavements and roadways, and smoke can cut visibility to nothing in seconds. There is also the risk of falling debris and the need to keep the public well back from a scene where the structure itself may be compromised.
That is why even a fire that is quickly brought under control can keep a road shut for some time: once the flames are out, crews must make the building safe, check for hotspots that could reignite, and hand the scene back in stages. Only when the brigade is satisfied does control of the road pass back to the highways teams, who then clear barriers and reopen lane by lane.
What to do if you’re affected
Drivers heading through north-west London this morning should avoid the Harrow Road corridor entirely and allow plenty of extra time. Check a live traffic map before leaving, and if your journey can wait, consider delaying it until the incident clears.
Bus passengers on the 18, 92, 182 and 204 should check TfL for diversion details, as stops along the closed stretch will not be served. Anyone heading to Wembley for work or appointments may find the Tube or Overground a safer bet — disruption to bus routes has been a recurring theme across the capital in recent weeks.
As with any emergency road closure, drivers are asked not to move barriers or attempt to drive through the closed section. Emergency vehicles need clear access, and previous closures have shown that rubbernecking and rat-running only slow the clear-up.
The wider picture
It has been a difficult morning on London’s roads. The Wembley closure comes as the M25 clockwise is also suffering major delays after multiple crashes and breakdowns, meaning drivers seeking to avoid one incident may run into another.
We will update this live blog as the fire service brings the incident under control and the road reopens.
