Extensions to residential buildings require compliance with approved documrent L1B of the Building Regulations


  •  If the proposed design for your extension has a substantial amount of glazing, which most now do, then having SAP calculations is often the only route to compliance with L1B

  • We have been helping Householders, Architects and small Developers to overcome the problems associated with Part L for some years.

  • We provide a degree of "handholding" to those that are not versed in the technical aspects of building extensions and will provide solutions to ensure that your final plans are compliant