LTN changes due here in 2024 
https://letstalk.oxfordshire.gov.uk/east-oxford-ltns-2023

"St Mary’s LTN area
Marston Street
Relocation of the residential parking bay located to the south of the business entrance to outside number 47 Marston Street."

(Location a little uncertain, given the interpolations)

(Not sure there's anything to be mapped here, but check)

Check: has this happened on the ground yet?