Here are a couple of recent extensions to sandstone Georgian houses in Midlothian, both using a timber frame, timber cladding and large areas of glass.
Both use Siberian Larch as the external cladding, but in different arrangements to suit each particular building. Siberian Larch is a popular cladding material with architects because of its durability, cost and more consistent texture than its Scottish counterpart. The timber in the Polton Bank project has been treated to keep the warmth of colour of the original timber while Eskbank will be left to turn silver-grey. I have a current project that uses Scottish timber cladding and look forward to seeing how it compares.
For the exposed timber frame and joinery Polton Bank uses oak whereas the Eskbank uses the same Larch as used for the cladding. This is to unify the two separate extensions (on the ground and first floors) and to minimise the number of new materials.
The Polton Bank project replaced a mean, dark lean-to stair extension with a more generous glass and timber one that opened up the hall and stair well into one light spacious room.
The Eskbank project was done on a tighter budget for a young family needing more space for a growing family and involved more internal rearrangements including two new bathrooms.
For further images of each project visit my projects page.