bighairybear1
I live in Impasse Des Groies, right opposite the location you are querying.
The Centre de Secours certainly exists, it is basically the local fire/rescue station, and it is operational. 
The area immediately to the east of the fire station is its car pak. Where your cross is positioned a small outdoor sports area was built in 2017. It is essentially an outdoor basketball area, with a tall wire fence, probaly about 3m high I would guess.. So yes, there is an enclosed basketball court there but it is not a building as such.