The historical OS mapping is interesting. The original development (1930's map) was the cluster of houses termed Mayor's Well Field, up to and including 12 and 12A. The "main road" was an extension of the old Bakehouse Lane, but was new and is not named.

16 - 19 appear in the 1970 map (along with the Mayorswell Close development), i.e. the numbering of Mayorswell Field has been extended along "Bakehouse Lane extension".

So from the point of view of addressing, it does make sense to call this stretch Mayorswell Field. But the council naming Bakehouse Lane also makes sense since that's the logical name for that stretch of road.

Close the note? I find the solution of creating a bit of footway and giving it a different name from the road (as in Kepier Villas just down the way) a bit clunky. (I've sometimes created a new landuse=residential and named that for named blocks of houses).