Assess the older property rather than assuming access
Midlothian Council publishes a Gorebridge conservation-area character appraisal. If your collection is from the older centre, describe the actual door, stair and shared approach for that building. Check whether large furniture turns through the entrance with protective wrapping in place, and provide photos where a close or landing makes the route uncertain.
Midlothian Council Gorebridge conservation appraisal