Who can carry out a protected species survey

Who can do a protected species survey depends on what the survey involves. Anyone can walk a site and record what they see. The moment a survey disturbs a protected species, enters a bat roost, or handles a great crested newt, it needs a licence from Natural England, and carrying out that work without one is a criminal offence rather than a procedural irregularity. For a self-builder, the practical consequence is simpler: appoint someone who holds the right licence for your species, or lose a survey season.

Why a licence is a legal requirement and not a preference

Two regimes do the work. The Wildlife and Countryside Act 1981 protects a long list of species, including all wild birds, reptiles and some plants, with offences covering killing, injuring, taking and damage to places of shelter. The Conservation of Habitats and Species Regulations 2017 implement stricter protection for European protected species, which for most development sites means bats and great crested newts, and sometimes dormice or otters.

Under the 2017 Regulations it is an offence to deliberately capture, injure or kill a European protected species, to deliberately disturb it, or to damage or destroy a breeding site or resting place. Badgers and their setts have their own statute, the Protection of Badgers Act 1992, with its own licensing.

Nothing in those offences depends on intent to harm the animal. A surveyor who climbs into a loft to look for bats, without the relevant licence, commits an offence even if nothing is found. That is why a competent ecologist will decline work they are not licensed for, and why an offer to "take a look in the roof" from an unlicensed adviser should worry you.

Survey licences and mitigation licences are different things

The distinction matters because they come at different stages and cost different money.

A mitigation licence under the 2017 Regulations is granted only where three tests are met: there are imperative reasons of overriding public interest, there is no satisfactory alternative, and the population of the species will remain at a favourable conservation status. The local planning authority has to consider those tests when deciding the application, which is why a scheme that cannot pass them will not get permission on the promise of a licence later.

Class licences and registered consultants

Most routine survey work happens under class licences, which Natural England issues to cover a defined activity so that individual applications are not needed each time. Ecologists register against the class licence and work within its conditions, and the registration level limits what the holder may do.

For bats, the registration tiers separate basic roost inspection from more intrusive work, and there is a separate low impact class licence used for small scale works at roosts of lower conservation significance. That route can save months on a barn conversion or a loft job, because it avoids a full mitigation licence application, but it only applies where the roost type and impact fall within the licence conditions.

For great crested newts, district level licensing operates in participating areas. Instead of trapping and translocation, the developer makes a conservation payment and Natural England delivers habitat creation at a landscape scale. Where it is available it is usually faster and more certain than site-based mitigation, and it is worth asking about before anyone prices a trapping programme.

Ask which class licence your ecologist is registered under, at what level, and when it expires. Those are reasonable questions and a competent consultant answers them without hesitation.

What a licensed surveyor has to record

A licence carries conditions, and the records produced are part of the evidence base your application rests on. Expect survey reports that state the licence number and level, the dates and times of visits, weather conditions, equipment used, the method followed and the survey effort against published good practice guidance for that species.

Survey effort is where thin reports show. Bat emergence and re-entry surveys follow Bat Conservation Trust good practice guidance, which sets the number of visits by the assessed roost suitability of the building. One visit to a building assessed as having moderate suitability does not meet it, and a county ecologist will say so.

Negative results need the same care. An absence of records is not evidence of absence unless the survey effort was adequate for the season and the method, and a report that elides that distinction will be sent back.

Seasons, and what happens when you use the wrong surveyor

Ecology has a calendar and it does not negotiate. Bat emergence surveys run from May to September, with the optimal window earlier in that period. Great crested newt environmental DNA sampling is confined to 15 April to 30 June. Reptile surveys need the warmer months, with spring and early autumn best. Breeding bird survey work runs through the spring and early summer.

Miss the window and the realistic options are to wait, to apply with a precautionary approach and accept heavier conditions, or to use district level licensing where it applies to the species and area. An unlicensed or under-qualified surveyor costs you the season twice: once because the work is rejected, and once because the repeat survey waits for next year.

There are harder consequences too. Works carried out in breach of the offences can lead to prosecution, and a stop on site is an expensive way to discover that the loft had a roost. Our note on the reports where AI drafting cannot replace a licensed professional sets out where that line sits across the document set.

Checking competence before you appoint

Five checks, in the order I would make them.

1. Ask for the licence or registration details, including species, level and expiry, and the Natural England reference.
2. Check professional membership at a grade that reflects experience, since membership of the Chartered Institute of Ecology and Environmental Management is graded and the grade means something. The method is covered in our guide to checking a professional institute register.
3. Ask for two recent examples of the same species and the same type of scheme, with the planning outcome.
4. Confirm professional indemnity insurance at a level proportionate to the scheme.
5. Ask who will actually attend the site, because subcontracting to a less experienced surveyor is common and the licence travels with the person, not the firm.

If a quote is well below the others, the usual explanation is a smaller survey effort rather than a better rate. Compare the number of visits and the method, not the total.

What the council does with an unlicensed survey

It depends on the authority, but the pattern is consistent. The case officer sends ecological material to the county ecologist or an in-house adviser, who checks the licence position, the survey effort and the season. Where the work needed a licence and none is evidenced, the report is treated as unreliable.

From there the application either stalls pending further survey, or is refused for insufficient information, which is a refusal that costs a season and a fee. A few authorities will not validate the application at all where their local list requires ecological survey for that type of site.

The remedy is procedural, not clever: commission the survey from someone licensed, in the right season, to the published guidance, and submit it with the licence details stated on the front page. The report pages for the Protected Species Survey and the Bat Survey set out what each contains.

Surveys and licence work must be carried out by a suitably licensed ecologist, and PlanScope's draft documents are a starting point for that professional rather than a substitute for them. The professional directory is the route to a reviewer who can check and sign off the ecological content. PlanScope provides AI-assisted draft reports for planning applications. Reports should be reviewed before submission. We do not guarantee planning approval. For specialist technical reports, qualified professional input may be required.