As well as its extensive countryside, the Borough encompasses sections of the Chilterns Area of Natural Beauty and has sites of international, national and local importance for nature conservation. These sites cover a total of 19843 hectares.
Sites of international importance are designated through the European Union (Special Areas of Conservation, SAC, and Special Protection Areas, SPA) and by international convention (Wetlands of International Importance or Ramsar sites). Internationally important sites wholly or partially within the Royal Borough are:
| International Biodiversity Designation | Local Area |
| Chiltern Beechwoods SAC | Bisham Woods, owned by Woodlands Trust |
| South West London Water Bodies SPA and Ramsar | Wraysbury and Hythe End Gravel Pits and Wraysbury No1 Gravel Pit |
| Thames Basin Heaths SPA | Chobham Common |
| Thursley, Ash Pirbright and Chobham SAC | Chobham Common |
| Windsor Forest and Great Park SAC | Windsor Forest and Windsor Great Park, owned by the Crown Estate |
The Borough also has 300km of rights of way, inclduing the Thames Path National Trail. For further information, please see the Public Rights of Way webpages.
Information on key environmental schemes and designations can be accesssed via the government maintained MAGIC website.