Simple Buildings – connecting to existing services

Where a building extension will connect to existing building services, a Simple Buildings assessment can be carried out if the total services systems is of limited capacity and complexity conforming to the definition and scope of a Simple Building.

Refer to the Applicability of Simple Buildings assessments for more detailed information.

For example, the total capacity, when assessing the space and/or hot water heating services, must be less the 100kW.
Compliance would be met by any of the following:

  • A standalone system serving the extension only with a capacity of <100kW
  • Connection to an existing system in the rest of the building with a capacity of <100kW
  • A standalone system and existing system with a combined capacity <100kW

The assessment (in this case, extension) cannot be assessed against the Simple Buildings methodology if the definition of a Simple Buildings is not meet.