Thanks for the building and fine tunning on the outline. But there is still a problem : 

CADGIS : 21813A0255/00A002 it's the substation. 

And the outline on openpermit fit exactly on the original elevation plan and don't go to the little parc : 

https://monument.heritage.brussels/medias/buildings/10007025/10007025_0009_Z01.jpg

https://monument.heritage.brussels/medias/buildings/10007025/10007025_0009_Z02.jpg

https://www.mapillary.com/app/?pKey=1383824552420421 (limit right the 3 garage door)

And https://www.mapillary.com/app/?pKey=414823184015145 (limit left the column (as the plan from urban brussels). 

