Ennis School consisted of the Design & Build of a new 4,530m2 school building as part of the Department for Education and Skills (DFES) Rapid Build Schools Programme 2018-2019 for JJ Rhatigan building contractor. The project included one and two storey buildings with 24 classrooms and all associated ancillary accommodation. Works also included the demolition of an existing school accommodation (1060m2 floor area) and the removal of temporary accommodation.The Part L Assessment was carried out taking into consideration the New Part L that, at the time, wasn’t out yet. An imporvement to the building fabric and lighting design was important to achieve an A3 rating school which was the requriement from the DFES for all new schools within that program. Assessment of the Mechanical Systems, Lighting and Fabric made this rating possible.