It’s the British way of protecting places, and it’s confusing. Huge areas of the country are green on the map but the designations vary in value for wildlife. To complicate things further, they frequently overlap – but given there’s currently talk of increasing the protected areas, here’s a guide.
Area of Outstanding National Beauty (AONB)
Focus: landscapes. Ownership: usually private.
AONBs are an acknowledgement that a landscape is special: rich in history and character. I live on the border of the Surrey Hills, one of the oldest AONBs; they quietly protect much of the countryside, from the Yorkshire Wolds to the North Norfolk Coast.
AONBs offer protection against development and save our rural heritage, so are invaluable, but there is no duty on landowners to do anything for wildlife. While some AONB land supports many rare species, other areas are intensively farmed or used for pheasant shooting. I would like to see AONB status come with a basic duty of care for the environment.

National Park
Focus: landscapes. Ownership: usually private.
Very different to the North American meaning; English national parks are basically AONBs with their own planning authority and notably more access for outdoor recreation. They sprawl across the uplands and occasionally elsewhere, conserving some of our most spectacular landscapes.
Yorkshire Dales National Park

Site of Special Scientific Interest (SSSI)
Focus: biodiversity or geology. Ownership: usually private.
These are the ones that really matter for wildlife. They cover 7% of England and range from abandoned railway tunnels to vast moorlands and estuaries. All of them come with lists of ‘notified features’: the special wildlife, geology or habitats which triggered the notification. Depending on the SSSI, this can be anything from nightingales to red squirrels or chalk cliffs.
They are bewilderingly varied, like the wildlife and geology they protect, but this is one of the strangest (and smallest) of all: Orielton Stable Block and Cellars SSSI in Pembrokeshire. Yes, we have a SSSI that is indoors. It was designated to protected lesser horseshoe bats!
Babylon Hill SSSI (Dorset) – notified for Jurassic geology

Thursley, Hankley & Frensham Commons SSSI (Surrey) – heathland habitat and species

National Nature Reserve (NNR)
Focus: biodiversity or geology. Ownership: public, or public-private partnership
Our ‘real’ national parks, NNRs are the high point of British nature conservation. They are often underpinned by SSSI status and almost always provide public access and good scientific research opportunities.
Hickling Broad NNR, Norfolk

Special Area of Conservation / Special Protection Area
Focus: landscape-scale conservation. Ownership: various
SACs and SPAs are often called European sites, but actually derive from the Bern Convention. Together with Ramsar sites, SACs and SPAs are designed to protect habitats and species of international importance. Nobody can undertake a project in one of these sites without first proving that it will have no likely significant effect on the environment. For good measure, all British examples are also SSSIs.
Woolmer Forest SAC / Wealden Heaths Phase II SPA

Scheduled Ancient Monument (SAM)
Focus: historic landmarks. Ownership: various
Finally, there is the human factor. People have been living and working in Britain for many millennia, and every generation has left thought-provoking traces in its wake. A SAM is to human work what SSSIs are to wildlife.
Belas Knap SAM – a 5,000 year old Neolithic longbarrow.
