Last edited 07 Nov 2020


Approved document M1 of the building regulations defines the following gradients:

Not exceeding 1:60 Level
1:60 to 1:20 Gently sloping
1:20 to 1:12 Ramped
Greater than 1:15 Steeply sloping (in relation to plot gradients - that is the gradient measured between the entrance storey finished floor level of the dwelling and the point of access).

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