These 5 concrete-framed homes have undergone successive light refurbishments since their original build, but with their original single glazed steel windows and poor thermal performance they need investment to safeguard their future let ability and service.

Floyd Slaski is an advocate of good mid-century design, and we were keen to keep those worthy elements whilst extending at the boundaries to reflect evolving needs and living patterns and to take every opportunity to upgrade the thermal and acoustic envelope. Crittal now produce their W20TE steel windows offering current-day performance whilst maintaining those slim sight lines of the originals. Incorporating these into enlarged contemporary openings neatly bridges design eras whilst bringing the houses into compliance.