Rear Extension with Roof Lantern

A rear extension photographed just before handover: vaulted ceiling with a roof lantern, full-height glazing to the garden side, flooring laid and the whole room decorated.

The opening back into the original house is the part that decides whether an extension feels like an extension. Here the structural opening was formed wide enough that the new space reads as part of the house rather than a room tacked onto the back of it.