Biodiversity Net Gain Consultants in Yorkshire

A regional service, not a single planning rulebook

Yorkshire contains several distinct planning and ecological contexts, from the Pennine uplands to the Humber and from major urban centres to coastal farmland. A meaningful biodiversity net gain strategy needs to recognise those differences. There is no single Yorkshire planning authority, single Yorkshire habitat market or single statutory nature recovery strategy covering every site described as Yorkshire.

Collington Winter Environmental works throughout England from our Bolton office and provides BNG support across Yorkshire. We help developers establish site constraints and assess design options, and help landowners explore habitat banking on an evidence-led basis. Our regional coverage does not mean using the same ecological assumptions everywhere: a lowland floodplain, an upland farm and an urban redevelopment parcel require different survey evidence and management proposals.

Finding the right Yorkshire planning authority

Relevant councils include Leeds City Council, Bradford Council, Calderdale Council, Kirklees Council and Wakefield Council in West Yorkshire; Sheffield City Council, Barnsley Metropolitan Borough Council, Doncaster Council and Rotherham Metropolitan Borough Council in South Yorkshire; and North Yorkshire Council, City of York Council, East Riding of Yorkshire Council and Hull City Council elsewhere in the region.

Within their boundaries, the Yorkshire Dales National Park Authority, North York Moors National Park Authority and Peak District National Park Authority exercise relevant planning functions. North Yorkshire Council replaced former district planning authorities outside the national parks, so relying on an old district name can misdirect an initial enquiry. We confirm the current authority and policy position before defining the ecological submission. Different councils may require different supporting information even where the same national statutory framework applies.

A landscape-led baseline across Yorkshire

The Yorkshire Dales and Pennines include upland grasslands, limestone features, peatlands and wooded valleys. The Vale of York and other lowland areas include agricultural landscapes, hedgerows, rivers and floodplains. East Yorkshire brings chalk landscapes, coastal habitats and the Humber estuary, while the larger towns and cities include canals, railway corridors, parks and brownfield mosaics.

Protected-species considerations follow these habitats. Bats, badgers, nesting birds and great crested newts may be relevant in suitable settings; otters and water voles may require attention along watercourses. Coastal and estuarine proposals can raise issues for internationally important bird populations and require assessment beyond BNG. We do not infer presence from a regional species list. Records, habitat suitability and proportionate surveys establish the actual constraints.

How statutory biodiversity net gain applies

For development in Yorkshire that falls within England's statutory BNG regime, the national requirement is at least 10% biodiversity net gain measured using the statutory biodiversity metric. Applicability, commencement and any exemption should be checked for the particular application against current legislation and guidance. Local policy may introduce additional expectations; the national minimum should not be assumed to settle every planning requirement. An exemption from statutory BNG does not remove protected-species or designated-site duties.

The assessment starts with a defensible pre-development baseline. Habitat type, area or length, condition and strategic significance feed into the calculation, alongside the proposed retention, enhancement and creation. Habitat area units, hedgerow units and watercourse units are assessed separately and cannot simply be exchanged for one another. Trading rules also govern which habitats can address particular losses. The metric accounts for delivery risks, including the time habitats take to develop and the difficulty of establishing them. 3

Avoiding and minimising harm should inform the design before residual requirements are addressed. The applicable biodiversity gain hierarchy guides consideration of on-site habitat delivery, off-site units and, as a last resort, government statutory biodiversity credits. Any application-specific modifications to that hierarchy should be checked against current guidance. Private off-site units and government credits are different products, with different procedures and evidence requirements; purchasing either without checking the actual deficit can create avoidable cost.

Off-site delivery can take place on the developer's other land or through a third-party provider. The statutory spatial risk multiplier influences how much off-site delivery is needed. For area habitats and hedgerows, relevant local planning authority and National Character Area relationships matter; watercourses use their applicable catchment geography. We check the current metric rules for the proposal rather than assuming that a county boundary, mileage radius or LNRS boundary determines the answer.

A biodiversity gain plan normally requires approval by the planning authority before development can commence under the statutory biodiversity gain condition. Planning-stage baseline information and an outline gain strategy are therefore important, but they are not automatically the approved final plan. The plan must reconcile the permitted layout, completed metric and the legal evidence for any off-site allocation or statutory credits. Phased schemes have additional plan requirements that should be considered from the outset.

Significant on-site habitat enhancements and registered off-site gains must be secured and managed for at least 30 years under the applicable rules. Off-site land needs an appropriate legal agreement, such as a section 106 obligation or conservation covenant, registration on the biodiversity gain sites register and allocation to the development. A habitat management and monitoring plan should identify responsibilities, target conditions, management actions, reporting and remedial measures. The required management period and its start point should be made explicit in the agreement rather than treated as an informal promise.

Several Local Nature Recovery Strategies, not one

Yorkshire's LNRS geography includes West Yorkshire, South Yorkshire, North Yorkshire and York, and Hull and East Yorkshire. The responsible authorities are respectively the West Yorkshire Combined Authority, South Yorkshire Mayoral Combined Authority, North Yorkshire Council and East Riding of Yorkshire Council. A project should use the strategy covering its actual location and review adjoining strategies where they help explain ecological connections. 1

This matters for habitat design and evidence of strategic significance. A priority for one landscape is not automatically appropriate in another, and a regional marketing description is not a metric input. We identify relevant mapped opportunities and measures before advising on habitat choices. Landowners considering more than one holding should assess each parcel individually rather than assuming that all Yorkshire land has the same strategic role or off-site market.

Comparing delivery options across a large region

A Yorkshire-wide search can identify potential off-site providers, but distance alone does not establish suitability. For area habitats and hedgerows, the statutory spatial assessment considers the relevant local planning authority and National Character Area relationships. Watercourse units have their own catchment-based rules. A bank can therefore be geographically close yet have different treatment from another apparently more distant option.

We also check the habitat trading rules. A development cannot necessarily replace every lost habitat with whichever units are cheapest or easiest to obtain. Separate area, hedgerow and watercourse calculations can reveal different requirements, while high-distinctiveness habitats may demand more specific compensation. Comparing providers requires their evidence, not just a headline number of units and a location on a brochure.

Habitat banking from farms to former industrial land

Yorkshire landowners may have opportunities to restore meadows, enhance hedges, create wetlands or improve selected woodland habitats. The viable intervention depends on soil, hydrology, existing value and management capacity. An upland holding cannot be assessed using assumptions designed for lowland arable land, and restoring an already valuable site may produce a different unit outcome from creating habitat on an intensively managed field.

We support baseline surveys, metric options and management planning, while encouraging owners to obtain legal and financial advice before committing land. Tenancies, rights of access, environmental schemes and existing conservation duties can all affect additionality and delivery. A good feasibility study distinguishes projected ecological uplift from the units that can ultimately be secured, registered, allocated and sold. It should also allow for monitoring and remedial work over the required management period.

Working with Collington Winter Environmental

Our services for Yorkshire can begin with an initial ecological review or a preliminary ecological appraisal, followed by habitat mapping and condition assessment where needed. We can prepare statutory biodiversity metric calculations, compare design options, identify an off-site deficit and support biodiversity gain plan preparation. Where protected-species issues arise, we advise on survey needs, mitigation and any licensing route rather than treating the metric as a substitute for species assessment.

Collington Winter Environmental is led by Managing Director Olivia Collington, a Chartered Environmentalist with Natural England bat and great crested newt licences and experience using DEFRA's Statutory Biodiversity Metric. Licence scope and any project-specific authorisation still need to be checked before licensed work is undertaken. Professional credentials support competent assessment; they do not guarantee permission, a licence or a particular biodiversity outcome.

We can also develop habitat management and monitoring plans and help landowners assess the ecological feasibility of habitat banking. The scope should be agreed around the site, programme and available evidence. Legal agreements, conveyancing and specialist financial advice remain matters for appropriately qualified advisers, with ecological input coordinated where required.

To discuss a development or landholding in Yorkshire, contact Collington Winter Environmental on 01204 939 608. A site plan, planning reference if available, proposed layout and target programme help us identify the next useful step. Contacting us before clearing vegetation or finalising the design allows more options to be considered and reduces the risk of making decisions without an adequate ecological baseline.