Methods The work was carried out with recording to Historic England Level 2 (HE 2016). In April/May 2019 Historic Building Recording was undertaken of 11 Fishpool Street in order to fulfil Listed Building and Planning Consents for the repair of the north and east elevations. Cartographic evidence shows a building on the site since the early 17th century and documentary evidence indicates that it was a straw hat factory in the 1840s. The buildings and land belonging to the factory were sold piecemeal to St Albans School between 1935 and the early 1970s.The historic fabric that was revealed during the remedial works showed the building had internal braces and thin section first floor joists, both features that were introduced in the mid-late 16th century. The front elevation was given a new façade in the 18th century to hide the jettied timber work, which nonetheless survived behind the new wall, Mathematical tiles were found to have been hung at first floor level at the same time and subsequently rendered over when they in turn became unfashionable. The infill between the timber framing was a mixture of brick, lath and plaster and a small section of wattle and daub. The extensive damage to the historic fabric, largely due to the use of modern, impermeable renders and paint that had allowed wood boring insects and decay to flourish, is currently being repaired using air dried oak timbers, riven oak laths, lime render.