Housing blocks built with 1, 2, and 3 bedroom flats (apartments) are routinely built with windowless kitchens and bathrooms today. This is regardless of whether the housing blocks are 'architect-designed' or cut from generic layouts.

In modern flats, the kitchen is shoved to the back of the living room away from windows and lacks any natural ventilation. This is sold as 'open plan living'.

Mechanical ventilation has became a crutch for many architects and housebuilders. It lets them lay out unappealing single-aspect apartments (including north-facing flats which should be banned). Single aspect means windows run across only one side of the apartment as opposed to dual-aspect design where windows run across two sides of the flat allowing cross-ventilation.

Modern blocks of flats, including 'architect-designed' ones, show a completely paucity of imagination when it comes to layout.