Commercial Drone Congested Area Permit UK 2026

What Counts as a Congested Area?

The CAA defines a congested area as any area of a city, town, or settlement that is substantially used for residential, industrial, commercial, or recreational purposes. In practical terms, if you are flying over rows of houses, high streets, business parks, or public recreational spaces with regular foot traffic, you are operating in a congested area.

This definition matters because the Open Category subcategories (A1, A2, and A3) impose different restrictions on how close you can fly to people and buildings in these zones. Getting it wrong can result in enforcement action from the CAA, with penalties including fines and suspension of your operator registration.

Open Category Rules in Congested Areas

Within the Open Category, your ability to fly in congested areas depends on which subcategory you operate under:

• A1 subcategory — drones under 250g (C0 class or legacy sub-250g) may fly over uninvolved persons, making limited congested area operations possible. However, you must not fly over assemblies of people. No specific congested area permission is needed, but you must hold an Operator ID and a Flyer ID
• A2 subcategory — drones under 2kg (C2 class) may fly within 30 metres of uninvolved persons (or 5 metres in low-speed mode). This requires an A2 Certificate of Competency. Operations in congested areas are possible but you must maintain these minimum distances
• A3 subcategory — drones under 25kg must fly at least 150 metres from residential, commercial, industrial, or recreational areas. This effectively prohibits congested area operations under A3

For most commercial work in congested areas — roof surveys, property photography, construction monitoring — you will need at minimum an A2 CofC, and more likely a GVC with an Operational Authorisation.

GVC and Operational Authorisation for Congested Areas

The General VLOS Certificate is the standard commercial drone qualification in the UK. Holding a GVC allows you to apply for an Operational Authorisation from the CAA, which grants permission to fly in scenarios that exceed Open Category limits — including closer proximity to people and structures in congested areas.

The OA application process requires you to submit:

• An operations manual — documenting your standard operating procedures, emergency protocols, and site assessment methodology
• A risk assessment — specific to the types of congested area operations you intend to conduct
• Evidence of training — your GVC and any additional competency records
• Insurance documentation — valid commercial drone insurance covering third-party liability

The CAA typically processes OA applications within 4-6 weeks. Once granted, your OA will specify the conditions under which you may operate in congested areas, including maximum drone weight, altitude limits, and required safety mitigations.

Article 16 Exemptions

For operations that fall outside both the Open Category and standard Specific Category authorisations, the CAA can grant exemptions under Article 16 of the Air Navigation Order. Article 16 exemptions are typically used for:

• Flying directly over assemblies of people — such as filming at outdoor markets or public events
• Reduced separation distances — closer than what your OA permits
• Operations with heavier aircraft — above the weight limits of your standard authorisation
• Specialised commercial tasks — delivery trials, emergency service operations, or infrastructure inspection in densely built environments

Article 16 applications are assessed on a case-by-case basis. You must demonstrate that equivalent safety levels can be maintained through alternative mitigations, such as parachute recovery systems, tethered operations, or restricted ground zones with marshals.

Practical Tips for Congested Area Operations

Commercial operators working regularly in congested areas should build these practices into their workflow:

• Conduct site surveys in advance — identify overhead cables, mobile phone masts, cranes, and other obstacles before the day of the operation
• Notify local stakeholders — inform the landowner, building manager, or local authority if you are operating from or near their property
• Use ground markers and signage — cordoning off a take-off and landing area reduces the risk of uninvolved persons entering your operating zone
• Check NOTAM and airspace — congested areas near airports, heliports, or emergency service sites may have additional airspace restrictions
• Carry your documentation — have your Operator ID, Flyer ID, GVC, OA, and insurance details available on site. The police or CAA inspectors can request these at any time

Building a reliable process for congested area work not only keeps you compliant but also demonstrates professionalism to clients who may be unfamiliar with drone regulations. A well-documented operations manual is your strongest asset.