Which ecology licence covers which species and activity

Ecology licences fall into three families, and confusing them is the fastest way to lose a season. A survey licence lets an ecologist disturb a protected species to look at it. A class licence is a standing licence that registered individuals work under without applying each time. A mitigation licence permits works that would otherwise be an offence, and for development it is the one that sits between planning permission and the start on site.

Which family applies depends on the species and on what you want to do, not on how serious the work feels.

Survey licences and what they permit

A survey licence authorises activities that would otherwise be offences, carried out for the purpose of surveying or monitoring. For bats that means entering a roost, handling animals or using particular techniques. For great crested newts it means netting, bottle trapping or handling.

The licence is personal to the ecologist, not to the site or the client. It is graded for some species, with higher levels permitting more intrusive methods, and it carries conditions about record keeping and returns.

Two consequences for a self-builder. A preliminary walkover of a building, looking for droppings and staining from the floor, does not need a licence. The follow-up work that establishes whether a roost is present, and of what type, generally does. And an ecologist who holds a lower level licence may be entirely competent to advise you and still unable to carry out the specific survey your building needs.

Schedule 1 birds are a separate case. Disturbing one at or near an active nest is an offence, so a surveyor inspecting such a nest needs a licence even though no development activity is involved.

Class licences and registered users

A class licence is issued to cover a class of activity, and individuals who meet stated experience requirements register to work under it rather than applying for a licence each time.

The practical benefit is speed. Registration replaces a site-by-site application, and the work can proceed once the registered person has satisfied the conditions of the class licence, including any pre-works checks and any notification or reporting requirement.

Class licences exist for survey activities and, for some situations, for works. A class licence covering low impact bat works allows a registered consultant to carry out development affecting certain roost types without a site-specific mitigation licence, provided the roost type, the species and the scale of impact fall inside the defined limits. Step outside those limits and you are back to a full application.

Ask two things when a consultant tells you a class licence applies: which class licence, and what its limits are. A class licence that runs out of scope halfway through a job is worse than not having relied on it.

Mitigation licences for development

Where works will affect a European protected species, a mitigation licence is needed under the Conservation of Habitats and Species Regulations 2017. Natural England grants it, and three tests must be met.

The licence must be for a permitted purpose, which for development is normally that there are imperative reasons of overriding public interest. There must be no satisfactory alternative. And the action must not be detrimental to the maintenance of the population of the species at a favourable conservation status in its natural range.

Those tests are the reason mitigation licences are usually applied for after planning permission has been granted. The planning decision is the evidence that the public interest test and the alternatives test have been considered by a public body, and an application submitted without it will normally be refused as premature.

The licence application needs a method statement, a reasoned justification against the three tests, a mitigation and compensation plan, and evidence of the survey effort behind it. The quality of the survey is what determines how quickly it is granted. A Protected Species Survey carried out at the wrong time of year, or with too few visits, produces an application that comes back with questions.

Which species sit in which regime

The reptile row is the one most often misunderstood. There is no development licence for the widespread species because the offences concern killing, injuring and sale rather than disturbance or habitat loss. That does not make reptiles a small problem. Capture and translocation over an extended period during the active season can take longer than a licensed newt exercise.

Badgers carry their own timing constraint. Licences for interference with a sett are not normally granted during the breeding season, which removes a substantial part of the year from the programme.

District level licensing and how it differs

For great crested newts, district level licensing offers a different model. Instead of surveying the site, applying for a licence and trapping animals off it, the developer pays into a strategic scheme that creates and manages habitat where it will do the most good across the district.

Where a scheme is available and the site is eligible, the advantages are substantial: no trapping programme, no seasonal constraint on the works for that species, and certainty of cost early. The trade-off is that the payment is made whether or not newts were present, and eligibility depends on the local authority participating.

Ask the local planning authority early whether it participates. The answer changes the programme more than almost any other ecological decision on a small site.

Checking a licence before you appoint

Ecologists are not a regulated profession in the way that some others are, so the checks are yours to make.

1. Ask for the licence or registration reference, and for the species and activities it covers.
2. For bats, ask what level the licence is at and whether it covers the survey method your building needs.
3. Check the licence is current, not lapsed.
4. Ask whether the individual attending site holds it, or whether they are working under someone else's supervision, and what that means if the licence holder is unavailable.
5. Ask about professional body membership and professional indemnity cover.
6. Ask for two comparable projects and what the survey effort was.

Where you need a qualified reviewer to look over an ecological report before it goes in, PlanScope's professional directory is the route to review and sign-off.

Timing licences against the build programme

Work backwards from the start on site, not forwards from today.

An illustrative example. A barn conversion needs bat emergence surveys, which are confined to the warmer months and need several visits spread across the season. Those surveys inform a Preliminary Ecological Appraisal and the mitigation design. The planning application follows. The mitigation licence application follows the permission and takes weeks to determine. Only then can the roof come off. Miss the survey season by a fortnight and the whole chain slips by a year, because the next survey window is twelve months away.

Three practical rules follow. Commission ecology at feasibility rather than after the design is fixed. Ask the ecologist for the survey calendar in writing before you agree a build programme. And keep the biodiversity net gain work on a separate track, because the Biodiversity Net Gain Assessment has its own timetable and its own competency requirement and does not wait for the licence.

This is general guidance, not legal advice. Check the position with Natural England, your local planning authority and 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. Protected species survey work legally requires a suitably licensed ecologist, and biodiversity net gain work requires a competent person, so an AI-assisted draft is a starting point for that professional rather than a substitute.