I moved into a new build, and my back garden the builders just used it to dispose of soil and as a result the ground level is very high and uneven. I want to bring the level down to same level or below house level slightly so I can walk down onto the garden rather than walk onto the same level.
My plan is to dig out the soil so that I can lay a heavy duty driveway weed membrane then lay about 30-50mm of sub-base compacted down using a vibrator plate, then possibly another layer of cheap weed membrane and then lay about 10-20mm layer of sharp sand and compact that before adding the artificial turf on top. On one side of the garden there is a man-hole cover and opening it reveals that it seems to be rain water drains and not sewage, as my gutter seems to connect to it. What should I do about water drainage? Should I slope the ground level on laying the sub-base and lay a channel for water drainage connected to where the gutters are connected?
My plan is to dig out the soil so that I can lay a heavy duty driveway weed membrane then lay about 30-50mm of sub-base compacted down using a vibrator plate, then possibly another layer of cheap weed membrane and then lay about 10-20mm layer of sharp sand and compact that before adding the artificial turf on top. On one side of the garden there is a man-hole cover and opening it reveals that it seems to be rain water drains and not sewage, as my gutter seems to connect to it. What should I do about water drainage? Should I slope the ground level on laying the sub-base and lay a channel for water drainage connected to where the gutters are connected?