Building near trees

4.2.2Provision of information

Designs and specifications shall be produced in a clearly understandable format, include all relevant information and be distributed to appropriate personnel.

The site plan should show the trees and hedgerows that affect the ground and works, as well as the type, depth and dimensions of the foundations that fall within their influence. Where trees or hedgerows are either not shown or are in different positions and shrinkable soil is identified, it may be necessary to adjust the foundation depths on site.

All necessary dimensions and levels should be indicated and relate to at least one benchmark and reference points on the site. Details should be provided with respect to:

  • technical method statements
  • critical sequences of construction
  • site layout
  • site investigation
  • soil volume change potential
  • survey, including location and height of trees and hedgerows affecting the site
  • tree species (including existing, removed and proposed) using English names
  • original and final ground levels
  • planting schedules
  • dimensions, type and depth of foundations
  • locations and detailing of steps in foundations, movement and construction joints, ducts and services passing through the foundations
  • location of services
  • design of drainage systems.