Protected species licence or a class licence: which route

Both routes derogate from the same offences under the Conservation of Habitats and Species Regulations 2017, and both require the same three tests to be satisfied. The difference is who carries the paperwork and how long it takes. A standard mitigation licence is applied for by the developer with a named ecologist, assessed individually by Natural England, and takes weeks. A class licence is held by a registered ecological consultant who registers the site against pre-agreed criteria, and the turnaround is considerably shorter.

The constraint is eligibility. Class licences cover specified low-impact situations only, and a site that falls outside the criteria has to go the standard route however inconvenient the programme.

The standard licence against registered class licences

A European protected species mitigation licence is the individual route. The applicant submits a method statement, a reasoned statement addressing the derogation tests, survey results, and a mitigation and compensation scheme, with a named ecologist who will supervise the works. Natural England assesses it on its merits and issues a licence with conditions specific to the site.

A class licence works differently. Natural England issues the licence to individual consultants who have demonstrated the relevant experience, and that consultant then registers particular sites under it. The low impact bat class licence is the one most often used in development, covering small numbers of specified common species in roosts that are not of high conservation importance and where the impact falls within defined limits. Registration replaces a full application, and the consultant takes on responsibility for confirming eligibility and for delivering the mitigation.

The practical effect for a reviewer is that the documents look different. A standard licence application is a full package you can audit against the regulations. A class licence site registration is shorter, and the audit question becomes whether the eligibility criteria were correctly applied, because nobody at the regulator has assessed that site individually.

Where a scheme involves a maternity roost, a hibernation site, a rarer species, or works that will destroy a roost of high conservation value, the class route is not available and proposing it is a sign the assessment has not been done properly.

The three derogation tests and how they are met

The tests apply to both routes, and they also have to be addressed by the local planning authority before it grants permission, which is why they belong in the planning submission rather than only in the licence application.

First, the purpose test. For development, the relevant ground is imperative reasons of overriding public interest, including reasons of a social or economic nature. The argument is made from the scheme's benefits: housing delivery against a shortfall, employment floorspace, infrastructure, public health or safety, or environmental benefits of primary importance. Generic assertions of economic benefit are weak. A reasoned statement tied to the development plan, with the benefits quantified where they can be, is what carries.

Second, no satisfactory alternative. This means alternatives to the proposal that would avoid or reduce the impact on the species, not alternatives to the development as a whole. Address the do-nothing option, alternative site layouts, alternative construction methods, alternative timing, and alternative retention of the affected feature. Document the options considered and why each was rejected.

Third, favourable conservation status. The action must not be detrimental to the maintenance of the population of the species at a favourable conservation status in its natural range. This is answered with the mitigation and compensation package: replacement roost provision, timing of works outside sensitive periods, exclusion and capture methods, habitat creation, and monitoring with remedial triggers.

A reviewer should check that all three are addressed separately and evidenced, not merged into a single paragraph of policy language. Weakness in the second test is the most common defect.

Who may hold or register under each

Under a standard licence, the licence is issued to the applicant, usually the developer or landowner, with named ecologists authorised to carry out the licensable activities. Those individuals need the relevant experience and, for some species and methods, specific registrations.

Under a class licence, the licence belongs to the registered consultant. The developer is not the licence holder, which changes the liability position and should be reflected in the appointment terms. Registration is granted to individuals who can demonstrate a track record of the relevant work, and it can be withdrawn.

For any protected species survey, mitigation design or licence application, a suitably licensed ecologist is legally required under the Wildlife and Countryside Act 1981 and the 2017 Regulations. An AI-assisted draft document is a starting point for that professional, never a substitute for them, and no software output can satisfy the competence requirement.

Check the person as well as the firm. Ask for the licence or registration number, the species and methods it covers, and when it was last renewed. A firm may hold the capability through one individual who is not working on your site.

Evidence and survey effort required

Survey effort is set by good practice guidance rather than by the licensing route, so a class licence does not reduce the survey burden. It changes what you do with the results.

For bats, the guidance scales effort to the assessed suitability of the building or tree. A preliminary roost assessment comes first, then emergence and re-entry surveys in numbers that depend on whether suitability is low, moderate or high, carried out within the season when bats are active. Missing the season is the single biggest programme risk on a conversion or demolition scheme.

For a class licence registration the survey has to demonstrate positively that the site falls within the eligibility criteria: species present, roost type, roost status, numbers, and the nature of the impact. That is an evidential burden in its own right, and a registration based on thin survey data is the thing most likely to be challenged later.

Where a scheme affects a pond, newt survey effort follows its own methodology and season, and environmental DNA sampling has a narrow window in spring and early summer. Reptiles, dormice and water voles each have their own survey seasons and effort requirements.

Record the survey dates, weather conditions, surveyor names and equipment in the report. A reviewer cannot audit survey adequacy without them.

Timescales and the effect on a build programme

Natural England publishes service standards for licence determination, and those change, so check the current figure rather than working from a remembered number. The useful comparison is relative: a class licence site registration is determined in a fraction of the time taken for a standard licence application.

Three programme consequences follow.

Natural England normally expects planning permission to be in place before a mitigation licence is granted, so the licence sits after the planning decision in the sequence, not alongside it. Budget for that gap.

Survey seasons sit before the planning application, not after. A scheme that reaches planning submission without the bat survey data will either be held for a season or determined on a precautionary basis the applicant will not like.

And works have to happen within the licence's permitted timing windows, which may exclude the bat active season for roost destruction or require works outside the bird breeding season. Where a start on site is being timed for other reasons, the interaction with the licence conditions matters, and whether a particular operation counts as lawful implementation of the permission is a separate question again, covered in our note on a material operation and lawful implementation.

District level licensing for newts

Great crested newts have a third route in participating areas. Under district level licensing, strategic habitat is created and maintained at a landscape scale, and a developer makes a conservation payment in place of site-by-site survey, mitigation and licensing.

The advantages are real: no site survey requirement for the species in many cases, no seasonal constraint, certainty of cost at an early stage, and no individual licence application. The scheme is available in participating local authority areas and the coverage has grown, so check whether your authority participates before commissioning pond surveys.

The limits matter too. The payment is based on the impact zone and habitat type, so it is not always lower than a conventional mitigation scheme on a small site with no ponds nearby. Entry into the scheme has its own timing relative to the planning application. And the route addresses newts only, so any other protected species on the site still needs its own assessment and, where relevant, its own licence.

This is one of several schemes that resolve an ecological constraint through a strategic payment rather than site-specific works. The comparable water quality mechanisms work on similar principles, as set out in nutrient neutrality and water neutrality.

Planning condition wording that fits each route

Conditions should secure the mitigation, not the licence. Licensing is a separate regime with its own enforcement, and Natural England's consistent advice is that conditions requiring a licence to be obtained are unnecessary and can be unenforceable.

What works is a condition requiring the development to be carried out in accordance with the submitted ecological mitigation strategy, with any pre-start requirements limited to things the authority can actually assess: an updated survey where the data will be more than a stated period old at the start of works, a detailed mitigation scheme where the application carried only a strategy, and a biodiversity monitoring and reporting requirement.

Where the class licence route is proposed, the condition should require the mitigation set out in the registration documentation, and the application should explain which route is being used and why the site is eligible. Where the standard route is proposed, the planning statement needs the three derogation tests addressed on their own terms, because the authority has to be satisfied on them before it grants permission.

Browse the 66 report types by category to scope the ecology documents alongside the rest of the evidence base, and see PlanScope pricing for the Professional tier if you draft reports for clients regularly. Final sign-off on any licensable work stays with the licensed ecologist.

This is general guidance, not legal advice. Licensing policy and service standards change, so check the current position with Natural England or a suitably licensed ecologist before relying on it.

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.