Google Earth has hires imagery of Gray's Lane. No 36 appears to be 2nd from the bottom with a brown roof and some grey. Next, to the north, is a red roofed house. The next house, in Google, is under construction. There is a second under construction further up the road too.
On Google I counted 30 vehicles; it looks to be about 3pm.
If you use tilt control you will also see that Crampshaw lane is on a reverse slope so No 36 would probably not be visible. Railwood Road also appears to offer an alternative route to Gray's Lane.
Chalk Lane appears to be th ebest route to Headley Court and Dene Road the route from the A24. In other words Dene Road would be used only for the initial route to Gray's Lane unless people went to Headley Court first.