Rescode: Permeability

Variation 412

Objective

To reduce the impact of increased stormwater run-off on the drainage system to facilitate on-site stormwater infiltration.

Decision Guidelines

The reporting authority may give its consent to an application for a building permit for a single dwelling, which does not comply with regulation 412 of the Building Regulations 2006 if-

  1. the amount of impermeable surfaces would be consistent with that of existing development on the allotment, if applicable; or
  2. the capacity of the drainage network servicing the allotment is able to accommodate the additional stormwater that the development will cause; or
  3. on-site stormwater retention is able to accommodate the additional stormwater that the development will cause.

To download ResCode application forms please go to our application forms page on our website.