There are three colleges here with identical names, should they be mapped as a relation of some kind instead of 3 separate features? The building on Alfred Street has the official edubase reference & contact tags.

Oxford Sixth Form College: (East side of King Edward Street)
https://www.openstreetmap.org/node/3320076066

Oxford Sixth Form College K2: (West side of King Edward Street)
https://www.openstreetmap.org/way/957897984

Oxford Sixth Form College: (West, next "block" over on Alfred Street)
https://www.openstreetmap.org/way/721206374

Also the Food Standards Agency has them at:

12 - 13 King Edward Street
Oxford
Oxfordshire
OX1 4HT

https://ratings.food.gov.uk/business/1738503