The current Prison Estate Transformation Programme prison projects are based on a new Category C prison design that is focussed on rehabilitation. The HMP Berwyn project, which included a lessons learned process throughout all stages of delivery, has provided the team with a template on which to build the new category C prison design. Lessons learned were recorded independently by the Operations team and the Design and Construction (Client and Contractor partnership) team with joint workshops held at key milestones. Academic input was also involved. The Design and Construction team used an iterative process to record findings throughout the project lifecycle. The lesson learned log identifies learnings against key topics, as follows:

1. Design approach - provision and location of staff facilities; agile/flexible use of space; storage space; resilience of building types; digital technology.
2. Stakeholder input - identifying key challenges from specific third party service providers; achieving a consistent approach to stakeholder requirements; establishing the need for early stakeholder input to the design.
3. Detailed design and technical standards - wall finishes; roof pitch and overhang; use of window grilles; cell ventilation; manhole designs; electrical installation; pre cast concrete and standardised construction.