Using MAGIC to check designations around a site

Before you commission a single survey, spend twenty minutes on the Defra MAGIC map designations check. MAGIC is the free government map service that carries England's statutory environmental designations, and it will tell you in one sitting whether your site sits inside or beside a Site of Special Scientific Interest, an ancient woodland, a National Landscape or a Special Area of Conservation. That answer shapes the whole evidence base for a small housing scheme, and finding it out from an ecologist three months later is an expensive way to learn it.

MAGIC is run by Natural England on behalf of Defra. It is a viewer over live datasets rather than a report, so treat what you take from it as a desk study record with a date on it.

Getting to the layer list and turning on what matters

Open the map, search your postcode and zoom to the site. Everything else happens in the layer panel on the left, which is organised into groups: designations, habitats and species, land based schemes, landscape, access and marine.

Start with designations. Turn on the statutory layers one group at a time rather than all at once, because a map with fourteen overlapping polygons on it tells you nothing. The order that answers most questions fastest is Sites of Special Scientific Interest, Special Areas of Conservation, Special Protection Areas, Ramsar sites, National Nature Reserves, ancient woodland, National Landscapes and National Parks.

Then move to habitats and species and switch on the priority habitat inventory. Leave the land based schemes group alone unless you are dealing with agricultural land, where Countryside Stewardship and Environmental Stewardship agreements on neighbouring holdings are worth knowing about.

Each layer has a transparency slider. Use it. Reading a boundary against an aerial photograph is far more useful than reading it against a blank background, particularly where a designation follows a hedge line or a watercourse.

Statutory designations against the advisory layers

The distinction that matters is legal weight. A Site of Special Scientific Interest is notified under the Wildlife and Countryside Act 1981 and carries statutory consultation duties. A Special Area of Conservation or Special Protection Area engages the Conservation of Habitats and Species Regulations 2017 and may require an appropriate assessment. Ancient woodland is a designation with specific protection in national policy, and irreplaceable habitat is excluded from the biodiversity net gain trading rules.

The priority habitat inventory, habitat networks and most of the landscape layers are advisory. They tell you what is thought to be there. They do not, on their own, create an obligation.

Distance matters as much as overlap. A scheme 400 metres from a SSSI may still fall within the impact risk zone that Natural England publishes, which triggers consultation on particular kinds of development. Switch on the SSSI impact risk zones layer and click your site to read which categories of development are caught, because the zones are use specific rather than blanket.

Drawing a search radius around the site

Use the measuring tool to draw a circle of the radius your ecologist will want. For a small residential scheme, a 500 metre search for designated sites and a 2 kilometre search for statutory sites relevant to protected species is a defensible starting point, but the distances your local authority expects vary, so confirm them.

Record what you find in a table: designation name, type, distance, direction and the dataset you read it from. That table goes straight into the desk study section of a Preliminary Ecological Appraisal, and having it ready shortens the ecologist's scoping work.

Do the same for the ancient woodland layer at 500 metres, because the standing advice on ancient woodland buffers will apply to anything close enough to be affected by root protection or shading.

The priority habitat inventory and what it is worth

The priority habitat inventory maps habitats of principal importance under section 41 of the Natural Environment and Rural Communities Act 2006. It is compiled from survey data and aerial interpretation of varying age, and the polygons are indicative.

That is not a criticism of the dataset, it is what it was built for. A parcel mapped as lowland meadow may have been ploughed a decade ago. A parcel mapped as nothing at all may be species rich grassland that nobody has surveyed. Either way, the inventory is a prompt for a site visit rather than a conclusion.

For biodiversity net gain the distinction is sharper. The statutory metric is completed on habitats recorded on site by a competent person following the current UK Habitat Classification, not on inventory polygons. Use MAGIC to anticipate what the Biodiversity Net Gain Assessment will find, and to budget for it, and then let the surveyor record what is actually there.

Exporting a plan for a report appendix

The print tool produces a PDF with a title, a scale bar, a north arrow, the legend for whatever you have switched on and the date. That is enough for an appendix to a desk study, and the date stamp is the part that makes it useful evidence six months later.

Set the scale before you export rather than after. A designations plan at 1:10,000 with a 500 metre radius drawn on it reads well. The same plan exported at whatever zoom level you happened to be at reads badly and invites the officer to ask what the extent actually is.

Export one plan per theme. A single plan carrying designations, habitats, stewardship agreements and access land is unreadable, and it hides the thing you wanted to show.

What MAGIC does not record

This is the part that catches people out. MAGIC is a Defra service, so it carries Defra and Natural England data and very little else. It does not show:

• listed buildings, scheduled monuments or registered parks, which are on the National Heritage List for England
• conservation areas or Article 4 directions, which are council designations
• Tree Preservation Orders, which are held by the local planning authority
• local wildlife sites and local geological sites, which are non statutory and held by local record centres
• flood zones, which live on the Environment Agency flood map for planning
• protected species records, which come from the local environmental records centre for a fee

The flood point is the one that costs money. If the site is in Flood Zone 2 or 3, or is one hectare or more, you will need a Flood Risk Assessment, and MAGIC will not tell you. Check the flood map separately on the same afternoon.

Protected species records are the other gap. An absence of records on any public map is not evidence of absence, and a badger sett or a bat roost will be found by survey rather than by desk study, which is why a Protected Species Survey has to be carried out by a suitably licensed ecologist under the Wildlife and Countryside Act 1981 and the Conservation of Habitats and Species Regulations 2017. An AI draft or a desk study is a starting point for that professional, never a substitute for the survey.

Following a designation through to its citation

Clicking a polygon with the information tool returns its attributes, and for statutory sites that includes the site name, its reference and a link through to the designation record. For a SSSI that record carries the citation, which is the document setting out why the site was notified and which features are protected.

Read the citation. It tells you whether the interest is botanical, geological, ornithological or hydrological, and that determines what your scheme has to avoid. A geological SSSI in an old quarry raises entirely different questions from a wet grassland SSSI downstream of your drainage outfall.

Then check the condition assessment for the relevant units, which records whether the site is in favourable or unfavourable condition and why. Where a site is in unfavourable condition because of nutrient enrichment or water abstraction, expect the drainage and foul sewage evidence for your scheme to be examined closely.

Write the findings up as they stand, including the negatives. A desk study that records which layers were checked, on what date, and found nothing is worth far more at validation than one that mentions only what was found.

This is general guidance, not legal advice. Check the position with your local planning authority or a qualified professional before relying on it. Once you know which designations touch your site, enter your postcode on PlanScope to see which of the 66 report types the scheme is likely to need. PlanScope provides AI-assisted draft reports for planning applications. Reports should be reviewed before submission. We do not guarantee planning approval.