Big changes could be on the way at Carpenter Plc's plant at Glossop's Dinting Lodge Industrial Estate if High Peak Borough Council planners give the go-ahead.
The company has applied for permission to demolish one building and partial dismantle another and construct a new building elevation.
Also in Carpenter's plans are a realignment of kerbs, a new access road and on-site staff car parking facilities.
Plus extending the trailer park and a hard-standing area.