Renovating an older Warwick building means accepting that the elevation is not a reliable guide to what is behind it.
The 1694 fire destroyed a great many timber framed buildings, but not all of them, and the rebuilding that followed refronted plenty that survived. The Lord Leycester Hospital and its neighbours came through because the wind was from the west, and timber framing persists elsewhere in pockets. So a handsome early eighteenth century front can sit in front of something considerably older, and the first time anybody finds out is when a wall is opened.
That changes how we work. We open up and look before committing to a layout, because a partition in a building of this age may be a later stud wall doing nothing or part of a frame carrying the floor above. Revising a drawing at that point is cheap. Revising it with the ceiling down is not.
Materials matter here more than in most towns. Buildings of this age were built to breathe, with lime mortars and lime plasters. Repointing in cement or skimming in gypsum traps moisture in a wall that needs to lose it, and the damage shows up in the masonry rather than on the surface. We match materials rather than covering problems.
If the building is listed, internal work needs consent too, including things people assume are theirs to decide. There is more about how we phase this work on our renovation and refurbishment page.