Hello Tom Ameye,

Also the questions behind that is the common pratice about landuse in Belgium and in this area.

For Belgium here is a quick data calculation i have made for landuse=residential

Average: 2.13 ha
Median: 0.49 ha

Landuse is a "global concept" that reflect what is in majority in a area not to parcel in multiple contigus zone.

From the wiki (french part sorry) : " Le tag landuse est principalement utilisé pour des zones de taille importante, et pas à l'échelle de la parcelle " https://wiki.openstreetmap.org/wiki/FR:Tag:landuse%3Dresidential

The common pratice actualy in Brussels (and from my sample also for Belgium) is to map a simple global area : like here : https://www.openstreetmap.org/way/30163554 or to map  a "block beetween 4 street" like here : https://www.openstreetmap.org/way/157392569

Creating individual contigus landuse is not what the majority of mappers do , and personaly i consider that a bad pratice (and not saying about creating a lot of duplicated nodes and crossing landuse with building , that is considered to be a mistake).

Also that raise an another concern : mapping individual parcel (or assimiled too) is contrevertial see : https://wiki.openstreetmap.org/wiki/Parcel

Making tunnel even temporary is also not recommanded. 

I think with my comment it's the third time that other user warm you about this and i have also see other mappers merging your cut in landuse , so on long term a waste of your time.

Can you please reconsider the way you map landuse in this area ? 

Have a good day.
Raphaël