One Tree Hill and Bitchet Common

{{Infobox SSSI

|image= Track onto the Greensand Ridge - geograph.org.uk - 284635.jpg

|image_caption =

|name= One Tree Hill and Bitchet Common

|aos= Kent

|interest=Biological

|gridref={{gbmappingsmall|TQ 567 534}}

|area= {{convert|79.2|ha|acre|abbr=off}}

|notifydate= 1990

|map=[http://magic.defra.gov.uk/MagicMap.aspx?startTopic=Designations&activelayer=sssiIndex&query=HYPERLINK%3D%271000317%27 Magic Map]

}}

One Tree Hill and Bitchet Common is a {{convert| 79.2 |ha|acre|abbr=off|adj=on}} biological Site of Special Scientific Interest east of Sevenoaks in Kent.{{cite web|url= https://designatedsites.naturalengland.org.uk/SiteDetail.aspx?SiteCode=S1000317&SiteName=bitchet&countyCode=&responsiblePerson=&SeaArea=&IFCAArea= |title=Designated Sites View: One Tree Hill and Bitchet Common | series= Sites of Special Scientific Interest|publisher=Natural England|access-date = 21 February 2018}}{{cite web|url=http://magic.defra.gov.uk/MagicMap.aspx?startTopic=Designations&activelayer=sssiIndex&query=HYPERLINK%3D%271000317%27 |title=Map of One Tree Hill and Bitchet Common|series= Sites of Special Scientific Interest|publisher=Natural England|access-date= 21 February 2018}} It is in Kent Downs Area of Outstanding Natural Beauty{{cite web|url= https://designatedsites.naturalengland.org.uk/PDFsForWeb/Citation/1000317.pdf |title=One Tree Hill and Bitchet Common citation|series= Sites of Special Scientific Interest|publisher=Natural England|access-date= 21 February 2018}} and One Tree Hill is managed by the National Trust{{cite web|url=https://www.nationaltrust.org.uk/one-tree-hill|title=One Tree Hill|publisher=National Trust|access-date=17 January 2018|url-status=live|archive-url=https://web.archive.org/web/20180118122450/https://www.nationaltrust.org.uk/one-tree-hill|archive-date=18 January 2018}}

This site has mixed woodland on the Lower Greensand, some of it of ancient origin. The habitats are varied, including acidic soils on Bitchet Common and damp, base-rich soils in Martins Wood. There are several rare plants and invertebrates.

The site is in several blocks crossed by public footpaths.