If you design it in such a way, that people can evacuate similar to airplanes? Basically every floor becomes a slide to safety outside? Also it doesent have to

If you design it in such a way, that people can evacuate similar to airplanes? Basically every floor becomes a slide to safety outside? Also it doesent have to become slumy if its well organized. See the various capsule hotels in japan. If you up it to 300 $ you could have comon "living rooms". More interesting is, how would hide this from the neighbours? My suggestion: Have somebody drive a big truck into a garage regularly and basically be the shuttle service. Provide a set of two rooms near the front door - and a concierge actor using racism to provide a cover. Finally, a faked daily lightshow, behind the windows to provide the ilusion of ongoing normal life. This stealth hotel really would be a "hacking" -challenge: Next problems would be water and sewer system. Power supply and noiseless ventilation. My suggestion- create many false positives, to desensitize residents eveywhere to loud air conditioning. So for the hacked hostel to exist, one would need neighbours nearby who for money would allow a loudly humming installation (wifi-antenna) on there roof to exist.