[percy2nd]

Hi. I am looking at possibly buying a 4.7acre field. The access is at the bottom of the field and I would need to lay a track to the top of field. Approx 150mtrs in length. It would only be used by my van a few times a week. What would be the best materials to use for this? Crushed and rolled stone/concrete or type 1 aggregate on top? Also does anybody have any ideas on cost for the excavation and installation of a track please? 
Also, would I require planning permission for this? The field is not visible from the highway.

Thanks in advance.

[Bywaters]

My recently constructed track as two trenches,  terram lining and filled with crusher run / recycled inert construction waste. Plenty strong enought for vehicles and a nice green centre so it doesn't look out of place
I didn't trouble my local planning department, as I thought they would be too busy 

Possibly over engineered, but it works