HDS | Anyone Can Buy a Drone. Far Fewer Can Legally Fly Over Your Site

The 2026 rule changes have quietly split the UK drone market in two, and most people commissioning aerial work on the highway network still don’t know which half they’re hiring.

There is a conversation that happens on sites across the country, usually on a Thursday, usually when a programme is slipping.

Someone needs an aerial shot of the compound. Someone else says they know a lad with a drone. He’s got a Mavic, he’s done a few weddings, he’ll do it for two hundred quid and be gone by lunch.

It sounds like initiative. It is, in fact, one of the more efficient ways to transfer an uninsured aviation liability onto a principal contractor’s balance sheet.

That has always been true. What changed on 1 January 2026 is that the gap between a compliant operator and an enthusiastic one got considerably wider, and considerably more expensive to fall into.

What actually changed

The Civil Aviation Authority spent 2025 dismantling a framework that had been held together by temporary exemptions since Brexit. The replacement landed in January, and it is not a light touch.

Registration now starts at 100g. The threshold dropped from 250g to 100g. Anyone flying an aircraft of 100g or more needs a Flyer ID, obtained by passing the CAA’s free online theory test. An Operator ID, the registration held by the person or organisation responsible for the aircraft, is required for anything of 100g or more carrying a camera, and for any drone of 250g or more with or without one. A large number of small inspection platforms that previously sat outside the system are now inside it.

Remote ID went live. All UK class-marked drones must broadcast it now. Legacy aircraft over 100g with a camera have until 1 January 2028. That means a retrofit module or a fleet replacement, and neither is a decision to leave until late 2027.

UK class marks arrived. New aircraft sold in the UK carry UK0 to UK6 markings that determine what you can legally do with them. Drones bought before January 2026 without a class mark are now “legacy” aircraft, still legal but governed by weight alone and locked out of the reduced separation distances that class-marked drones unlock. EU C-class markings are recognised until the end of 2027, after which they too become legacy.

Night operations need a green flashing light. Not a nice-to-have. A requirement. And its weight counts towards the aircraft’s total, which can push a drone into a different regulatory bracket entirely.

The cost of compliance went up. PDRA-01 is the standard route for commercial visual-line-of-sight work beyond the Open Category. It authorises aircraft between 250g and 25kg in residential, commercial, industrial and recreational areas. The annual charge was £234. It rose to £500 in April 2025 and stands at £524 on the CAA’s published figures at the time of writing. More than double, in two years, for the baseline permission most commercial operators hold.

And one route closed. PDRA-02, which covered closer-proximity operations, has been suspended while the CAA reviews its underlying risk model. New applications and renewals are not being accepted. Operators who built their proximity work on PDRA-02 now have to go the long way round, via a full UK SORA submission, a substantially heavier piece of work than the process it replaced, with fees to match.

Why this bites harder in highways than anywhere else

Most sectors can absorb these changes without much drama. A drone photographing a housing development has an obliging risk profile: static site, controlled access, everyone on the ground is briefed and accounted for.

The highway network offers none of that.

The whole regulatory architecture turns on the concept of the uninvolved person: anyone not under the operator’s control who has not consented to be part of the flight. On a live carriageway, the uninvolved persons arrive continuously, in metal boxes, at seventy miles an hour, and there is no way to brief them, exclude them, or ask them to wait.

Layer onto that the things that make highways work distinctive. Schemes that run for miles rather than sitting on a plot. Corridors that pass under approach paths and clip Flight Restriction Zones around airfields nobody on the delivery team had thought about. Structures inspections that require the aircraft to be close to the very thing that makes a close-proximity authorisation necessary. Night possessions, where the work happens precisely when the new lighting rules apply. Overhead lines, gantries, and the electromagnetic environment around them.

Almost every distinctive feature of highways drone work sits at the harder end of the regulatory framework. It is not a coincidence that the authorisation route most useful for proximity work is the one currently suspended.

The liability question nobody asks

Here is the part that ought to concentrate minds in commercial teams rather than operations.

If an unauthorised flight goes wrong over a live carriageway, the consequences do not stay with the pilot. Commercial drone operators are required to hold insurance compliant with EC Regulation 785/2004. No class mark, PDRA or SORA authorisation replaces that requirement. An operator flying outside their authorisation is very likely flying outside their policy. At which point the exposure travels straight up the contractual chain to whoever engaged them, and sits alongside every CDM duty the principal contractor already holds.

The two hundred quid saved on Thursday looks different in that light.

Eight questions worth asking before anyone takes off

None of these are difficult. All of them are answerable in writing by a competent operator, usually within the hour. An operator who bristles at them has told you something useful.

1. What is your Operator ID, and can I see your current Operational Authorisation? Ask for the document, not the number. Check the expiry date.
2. Which route are you operating under: PDRA-01, or a SORA-based authorisation? And does it actually cover what you are proposing to do on my site?
3. What are the aircraft’s class mark and weight? If it is a legacy aircraft, what separation distances are you therefore committed to?
4. Show me your insurance certificate and confirm it is EC 785/2004 compliant. Confirm the level of cover and that it names the operating entity correctly.
5. What are the remote pilot’s qualifications? A2 CofC, GVC, or the newer Remote Pilot Certificate. The CAA has been moving Specific Category VLOS competency towards RPC-L1 Part A and consulting on phasing out new GVC issuance, so ask what the pilot holds and whether it is appropriate to this operation’s complexity. Note that competency and permission are separate things: a qualified pilot without a valid Operational Authorisation still cannot legally do the work.
6. Have you checked airspace for this specific location? Flight Restriction Zones, NOTAMs, and any permissions required from an aerodrome operator. Ask when the check was done.
7. Where is the site-specific risk assessment? Generic paperwork with your scheme’s name typed into the header is not a site-specific risk assessment.
8. What happens to the data? Ownership, retention, GDPR position on incidental capture of members of the public and vehicle registrations, and how the deliverable reaches you.

Print it. Put it in the pre-start pack. It will take ten minutes and it will filter the market for you more effectively than any procurement portal.

The upside of a higher bar

It would be easy to read all of this as bad news. It isn’t.

For years, drone-led survey and inspection has had to fight a credibility problem created almost entirely by its cheapest end: the perception that this is a gadget rather than a discipline. Every reputable operator has lost work to someone quoting a third of the price while carrying none of the cost of being compliant.

A framework that makes the difference visible is, in the end, good for the clients who were struggling to tell the two apart.

The results are already on the record. On the Birmingham street lighting programme delivered with Kier and Birmingham City Council, drone-led inspection covered 751 columns in the period a conventional MEWP-based method covered 145. That is around five times the daily output, with crews out of live traffic rather than in it. Scaled across the wider asset base, the projections ran to 2,800 hours of reduced exposure on the network and a cost reduction of roughly 60 per cent. The project took Highly Commended at both the Highways Awards, in Best Use of New Technology, and the HEA Awards.

None of that comes from owning a drone. It comes from an operations manual, a maintained authorisation, an insured entity, a trained pilot, and the unglamorous discipline of doing the airspace check before the van leaves the yard.

That is the actual product. The aircraft is just the bit you can see.

For projects and drone services email hello@highwaysdroneservices.co.uk or visit www.highwaysdroneservices.co.uk