Part 2: Unmanned Aerial Devices in UK construction – key issues, risks and emerging guidance

The use of technologies including drones and unmanned aerial systems (“UAS”) has rapidly expanded across the UK construction sector. However, drone operations and the data they collect are governed by strict legal and regulatory frameworks and create other risks. It is important that construction businesses deploying drones, whether directly on projects or through a third‑party operator, understand and comply with their obligations. We summarise some of the key frameworks and features to consider below.

Regulatory landscape

The Civil Aviation Authority (CAA) regulate the use of drones. The Unmanned Aircraft (Amendment) Regulations 2025 introduced new operational categories, pilot competency requirements and associated criminal offences for breach, largely coming into force on 1 January 2026. The CAA’s Drone and Model Aircraft Code (March 2026) (“Code”) contains guidance around the requirements to fly such equipment legally, safely and responsibly.

Since February 2024, the Law Commission has consulted industry and stakeholders on the legal framework governing aviation autonomy[1], including how remotely piloted and self‑flying aircraft should be regulated in view of technological advancements. The review covers issues including safety, vertical take‑off and landing and liability questions. The final report and recommendations are expected this year.

Recent regulatory developments generally reflect increasing focus on safety, competency, accountability and transparency. The rules seek to balance industry growth whilst introducing controls aimed at protecting the privacy and safety of people, property and airspace. It is important for organisations and operators to continue to monitor and understand the evolving regulatory landscape and consult the latest version of the Code.

Code requirements

The registration required in the UK depends on the weight of the drone and whether it is fitted with a camera.

The Code confirms where and how drones may be flown, including the permitted locations, height limits and minimum distances from buildings, transport routes or people. These requirements vary depending on the category of operations and associated risk profile. The Code also specifies certain ‘no‑fly zones’.

For construction sites, it will be essential to understand the applicable requirements and carefully assess risk, particularly when flying near to occupied buildings, critical national infrastructure, active plant or machinery, protected environments or wildlife, or public spaces. Additional airspace restrictions may apply to airports or airfields. While modern drones sometimes incorporate geo‑awareness or alert systems to warn users when approaching restricted airspace, these tools do not replace the need for a proper understanding of the Code. The equipment used must also be kept maintained and updated for use per the Code’s requirements (including compliance with applicable product class marks).

Pre-flight and in-flight considerations

The Code reinforces the importance of understanding the drone’s capabilities and provides guidance on factors or checks designed to ensure safe drone operations. Whilst good practice, many of these are directly relevant to construction operations, including:

• Checking the maximum take‑off mass, ensuring the drone is not flown with a weight that exceeds its safe operating limit.
• Avoiding the carriage of dangerous goods which may be used, i.e. flammable or toxic materials.
• Ensuring operator competence and fitness, i.e. pilot must have the correct registration, be able to concentrate without distraction and must not operate the drone if tired, unwell or under the influence of alcohol or drugs.
• Reporting dangerous incidents, near misses or other suspicious activity to the CAA.
• Ensuring appropriate insurance is in place based on the drone’s size or use, particularly for commercial activities.

In addition to the Code, construction professionals should consider integrating appropriate drone operations within existing site management and safety systems or project documents, including:

• Incorporating activities into the construction phase plan, risk and method statements (“RAMS”) and other documentation.
• Identifying and managing site‑specific hazards such as cranes, tall or partially completed structures, power lines, scaffolding, confined areas or adverse weather.
• Ensuring drone use does not introduce new site risks, e.g. by establishing designated take‑off or landing zones, and ensuring such areas are clear of personnel, plant and obstruction.

Consequences for failing to comply

A breach of the requirements can potentially constitute a criminal offence in the UK and may result in fines or imprisonment following investigation by the CAA. Endangering the safety of an aircraft is an offence that may attract a prison sentence of up to five years.

The Unmanned Aircraft (Offences and Consequential Amendments) Regulations 2025 create criminal offences for UAS operators who breach the regulatory requirements from 1 January 2026. These offences include causing or permitting an unmanned aircraft to be flown in contravention of the Regulations. A separate offence applies where the owner of a certified unmanned aircraft causes or permits it to be flown in breach of the Regulations. Penalties, such as fines, can apply to specified failures relating to registration, display of registration numbers, designation and competency of remote pilots, geo‑awareness updates, operations manuals, and record‑keeping obligations. Convictions may apply for permitting a UAS to be flown in contravention of the Regulations’ specific requirements.

Where an offence is committed by a business, and it is proved that it occurred with the consent, connivance, or neglect of a director, manager, secretary, or similar officer (or anyone purporting to act in such a capacity), that individual, as well as the business, will be guilty and may be prosecuted. Limited defences apply if it can be proven that the act or omission otherwise amounting to a contravention was caused by circumstances that could not have been avoided through the exercise of reasonable care, in which case it will not be treated as a contravention.

There may be other liabilities which attach to other breaches of contract, data protection or environmental law. Examples of such risks will be explored in our next update, together with certain insurance requirements.

Concluding observations

Drones clearly benefit construction projects and parties, but their deployment is governed by an evolving framework. It is important to understand the applicable requirements linked to the use of these technologies by your organisation (or supply chain) and to implement or manage these points accordingly.

Commercial and project delivery teams, as well as in‑house legal departments, should remain informed about how and where drones are being used on projects and construction sites. A failure to comply with the regulatory regime can create significant legal, operational, reputational and financial risks, including potential enforcement action, claims, insurance complications or project delays. For more information or support in considering these issues, please contact Andrew Croft or Kayleigh Rhodes.

[1] Aviation autonomy – Law Commission, undated