Drone Rules Near Biggin Hill Airport — Flight Restriction Zone Guide (2026)

Biggin Hill Airport FRZ

Biggin Hill Airport is located on elevated ground at approximately 180 m (600 ft) above mean sea level, on the southern edge of Greater London. The former Royal Air Force station became famous during the Battle of Britain and continued as a military base until 1992. Today it operates as a business aviation airport handling corporate jets, private aircraft, and helicopter movements.

The FRZ extends outward from the runway, covering parts of Biggin Hill village, Keston, Downe, and the surrounding North Downs countryside. Because the airport sits at a relatively high elevation, the FRZ interacts with the terrain in ways that differ from low-lying airports. Your 120 m altitude limit is measured from your take-off point, not from the airport elevation, so the effective separation between your drone and arriving or departing aircraft can vary significantly depending on the terrain.

Business aviation traffic at Biggin Hill operates throughout the day, with movements concentrated during weekday business hours but extending into evenings and weekends. Unlike major commercial airports with predictable schedule patterns, business jet arrivals can be relatively unpredictable in timing.

Airport Operating Hours

Biggin Hill Airport has specific operating hours that have been the subject of ongoing discussion between the airport operator and local residents. Outside published operating hours, aircraft movements are reduced but not necessarily eliminated. Emergency flights, air ambulance operations, and aircraft positioning may occur at any time. The FRZ remains legally enforceable regardless of the airport’s operating hours.

London Control Zone (CTR)

Biggin Hill sits within the London CTR — the large area of controlled airspace that protects the approach and departure routes for London’s major airports including Heathrow, Gatwick, London City, Stansted, and Luton. The London CTR extends from ground level upward, meaning that all drone flights within the CTR take place inside controlled airspace.

For recreational drone flights under 120 m in the Open Category, you do not need specific permission from air traffic control to fly within the CTR, provided you remain outside any airport FRZ and comply with CAP 2320 rules. However, the density of air traffic within the London CTR means that the risk of encountering manned aircraft at low altitude is higher than in uncontrolled airspace. Helicopters, police aircraft, and air ambulances routinely operate at altitudes below 120 m in the London area.

If you are planning a flight that requires you to exceed Open Category limitations — for example, operating in the Specific Category under an Operational Authorisation — you will need to coordinate with NATS and the relevant air traffic control unit.

Nearby Areas for Drone Flying

Downe and the North Downs

The village of Downe, south of Biggin Hill, is best known as the home of Charles Darwin. Down House is managed by English Heritage, and flying over the property requires their permission. The surrounding North Downs countryside includes chalk grassland, ancient woodland, and farmland. Some of these areas are designated as SSSIs or Local Nature Reserves, carrying additional wildlife protection obligations.

The North Downs to the south and east of Biggin Hill offer the most open terrain in the area, with lower population density than the suburban areas to the north. However, verify that you are outside the Biggin Hill FRZ and check for any active NOTAMs before flying.

Bromley and Orpington

The urban and suburban areas of Bromley and Orpington to the north and north-west of the airport present significant challenges for drone flying. High population density, public parks with many visitors, and the proximity to both the Biggin Hill FRZ and London CTR traffic make compliant recreational flying extremely difficult with drones over 250 g. Council parks are managed by the London Borough of Bromley, which may have byelaws restricting drone use on council land.

Kent Countryside

South of the Greater London boundary, the Kent countryside around Westerham, Sevenoaks, and the Darent Valley provides more rural flying opportunities. However, this area lies close to the southern boundary of the London CTR, and Gatwick Airport’s controlled airspace and FRZ extend northward into mid-Kent. Check both the London CTR boundary and the Gatwick FRZ when planning flights in this corridor between the two.

Leaves Green and Keston Common

Keston Common and Leaves Green lie between Biggin Hill Airport and the Bromley suburbs. These areas of common land and heathland are popular with local walkers. Keston Common is a designated SSSI, and the ponds support protected wildlife. Check Bromley Council’s policies on drone use at commons and verify your FRZ position carefully, as these areas sit very close to the airport boundary.

Battle of Britain Heritage

Biggin Hill’s wartime history as one of the most important RAF stations during the Battle of Britain means the area retains strong associations with military aviation. The St George’s RAF Chapel on the airport site is a memorial to the aircrew who served there. While this heritage does not create specific legal restrictions on drone flying beyond those already described, it is worth noting that local residents and visitors to the memorial may respond negatively to drone activity that appears disrespectful to the site’s commemorative function.

The airport also hosts periodic air shows and heritage flying events. During these events, Temporary Danger Areas (TDAs) or Temporary Restricted Airspace may be established, expanding the no-fly area beyond the standard FRZ. Check NOTAMs before any planned flight in the Biggin Hill area.

CAA Open Category Requirements

• Flyer ID: Required for drones weighing 100 g or more. Free CAA online theory test.
• Operator ID: Required for drones weighing 250 g or more, or if your drone weighs 100 g or more and carries a camera. £10.33 per year.
• 120 m altitude limit: Maximum height above the closest point of the earth’s surface. At Biggin Hill’s elevation (180 m AMSL), this places drones at up to 300 m AMSL — well within the altitude band used by arriving and departing aircraft.
• Visual line of sight: Keep your drone visible at all times without binoculars or other aids.
• 50 m separation (A3): Drones weighing 250 g or more must maintain at least 50 m from uninvolved persons.
• No crowd overflights: Never fly over organised gatherings or assemblies of people.

Key Points to Remember

1. Biggin Hill is an active business aviation airport with a legally enforced FRZ. Business jet traffic can arrive at unpredictable times.
2. The airport sits within the London CTR. All drone flights in the area take place inside controlled airspace, increasing the risk of encountering low-flying manned aircraft.
3. The airport’s elevated position means drones flying at 120 m AGL nearby reach altitudes used by arriving and departing aircraft.
4. Check for Gatwick Airport’s controlled airspace when flying south of Biggin Hill into Kent.
5. Heritage events and air shows at Biggin Hill create expanded temporary restrictions. Always check NOTAMs.
6. Register for your Flyer ID (100 g+) and Operator ID (250 g+) before flying.