Auto numbering location names in my base

[JamesG1981]

I would like to know how to auto number based on the building link and location name in my base. as per the picture below. Can someone let me know if this is possible and if so the solution.

TIA. James.

[jwag]

This is a bit of a pain but I've had the same query in the past and found this solution, which I've used in my base successfully too:

https://community.airtable.com/t5/base-design/count-to-create-a-unique-record-id/m-p/147002#M6747