3-5 Priory Row is a collection of some of the finest, best preserved 15^th century timber framed cottages, overlooked by the 12^th Century Holy Trinity Church in Coventry’s historic centre. Designated of great architectural importance, the buildings are Grade II*Listed. They have been painstakingly restored, refurbished and conserved, as luxury short term lets. Architects Vagdia and Holmes set about obtaining planning permissions and put together the specifications to upgrade these architecturally challenging cottages. Secondary glazing was deemed the only way to upgrade the window performance, so a straightforward specification was put together. Messenger Construction carried our major structural repairs before the main refurbishment works could commence. Messenger sub-contracted Selectaglaze to manufacture and install the secondary glazing units, with 2 sample windows to be provided initially for sign off by the client and architect. 38 units were produced from across the slimline range of secondary glazing; Series 10 – 2 and 3 pane sliders were used for the smaller windows and 4 pane horizontal sliding units for those spanning just shy of 2 metres. Series 45 hinged casements were installed, a couple of which were glazed with satinovo glass to provide privacy. To match the dark wood reveals in a few of the windows, black frames were produced, with the rest of the secondary glazing in white to blend in with the surrounds.