The criticism that wooded high-rise buildings are prestige projects for the well-to-do was not entirely unjustified: immediately after the completion of the first Bosco Verticale in Milan in 2014 the condominiums there cost 6000 - 7000 €/m2. Stefano Boeri together with Inbo has recently completed the first vertical forest for social housing in the Netherlands. The housing association Trudo has...