BRUSSELS - As of Wednesday (9 June 2021), the rules for sex work are normalising. After months of vacancy, activity in the zones of tolerance for window prostitution is getting back on track. In the past, sex workers and bar owners have been much investigated, but the property owners are a blind spot. Who are those men and women who buy premises to install display windows where sex workers attract customers? Which companies specialise in real estate for the sex industry and do they have links to foreign countries?