The Application of EnerPHit Standard to Residential Tower Blocks in the UK

This study examines the refurbishment of residential tower blocks in the UK according to the EnerPHit standard, which is an adaptation of the Passivhaus standard for retrofit. Currently, no single high-rise building in the UK has achieved this standard.

The study also investigates the refurbishment project of Tipton House and Edgbaston House, two other social housing tower blocks in Portsmouth, to make cross-case comparisons. Portsmouth City Council appointed the same architects to propose a design for the refurbishment of the blocks based on EnerPHit, but they decided not to proceed with the project following the feasibility stage. The rare opportunity of the author to work with the architects at the initial stages of the Tipton House and Edgbaston House projects and to carry out embedded research has provided a critical understanding of the project complications.

Based on the case studies, the research aims to uncover the specific requirements and difficulties related to the process of applying EnerPHit to UK tower blocks. The study also examines possible solutions to overcoming the challenges encountered at different stages of the process. The research reveals that the approach of the client and the architects towards the tower block refurbishment are two determining factors in adopting EnerPHit; the physical properties of tower blocks can create difficulties with meeting EnerPHit criteria such as primary energy demand, and the requirement for EnerPHit training and lack of sufficient communication between the teams can seriously complicate the construction stage.