On larger construction sites, where there is a mix of dwelling types (e.g. 3 bed Semi-Detached, 2 Bed Flats, etc.) – Part E of the Building Regulations Section 1.30 states:
Building control bodies should stipulate at least one set of tests for every ten dwelling – houses, flats or rooms for residential purposes in a group or sub-group.
If you are at all unsure of how many tests to budget for please give ATSPACE a call and one of our ATTMA-Accredited Engineers will be happy to talk you through the process and provide advice upon the overall number of tests that may be required.
However, given the complexity of mixed dwelling type development projects, which involve differing designs and fabrication please contact your local building control who will confirm the total number of tests that will be required by dwelling type across the whole site.