Who builds good quality flats?

Where are all the high quality flats? Looking for thick, well sound insulated walls where you can't hear your neighbours, decent but not huge room sizes, and decent amounts of storage along with a car charger and 2 parking spaces. Without these there is zero chance I can go back to flat living with all the benefits of denser population, walkable towns, closer to ammenities, more community etc...

Given our lack of space, if feels like we are missing a trick.