The road name "Under The Wood" can be seen on this Mapillary image

https://www.mapillary.com/app/?pKey=3775663592668346&focus=photo&lat=51.5547169&lng=-0.7736839&z=17&x=0.19901089724917204&y=0.5758547759707477&zoom=2.139162561576355


I have minimal evidence to support this following claim, aside from cadastrals and the map provided by HE, but I believe there may be a tunnel under the road connecting this settlement to Bisham. specifically the tip of this road:

https://www.openstreetmap.org/way/206749824