Double is more than probably not the name of the building , but the interpetation / transliteration of a newspapper. Inauguration signs on the ground talk about "his double" in fr and in nl Dubbelganger Project.

Already discussed in changeset comment : changeset/116516724
But Ground signs and local don't name this building like this.

This is not a pedestrian area here : https://www.mapillary.com/app/?pKey=167515749350780

And also not on Place Rogier : https://www.mapillary.com/app/?pKey=178978577870675

Sign = F12a = all the zone is 20 km and bicycle are allowed

The area has officially closed for cars
https://www.linkedin.com/posts/tour-taxis_tourandtaxis-tourtaxis-brussels-activity-7029798732606885888-KxTO?utm_source=share&utm_medium=member_android