Controversial opinion:
Set aside some of the green belt for this and then develop the rest for well designed medium density housing with solid 15 minute neighbourhood, pedestrian oriented design (mixed use (non SFH zoning), separated bike infrastructure, green spaces etc.).
IMO It's simply immortal to have tens of thousand of people drive past this space every single day to get to their car oriented suburban sprawl neighbourhood. All while developing brown field developments on farm land on the outskirts. We're in the middle of both a climate AND housing crisis, can we act like it please?