just bought a house in caterham on the hill from the road to my front door there is a drop well if i say my bedroom window is eye level with the road what i want to do is have a dropped kerb then a build a stand for my car the depth at the path is 6foot going 20 foot toward the house the depth from level is 11 &half feet can anybody help me with any ideas as to how and what footings and materials i can use cheapest but safest way please thankyou