HA4
Hillingdon, London · Eastcote, Ickenham & South Harefield, Roxbourne, Roxeth, Ruislip, Ruislip Manor, South Ruislip
History & heritage
HA4 lies within Hillingdon. One of London's largest boroughs by area, formed in 1965. Most of Heathrow Airport, the UK's busiest, lies within its boundaries.
Key facts
- •One of London's largest boroughs by area, formed in 1965. Most of Heathrow Airport, the UK's busiest, lies within its boundaries.