On mobile i have npc houses (they were actually spawnbases but a crafting bench adds npc houses) that are not only in now hallow, but i even have a house made of hallowed stone..and a hell house... mobile you fail...An unteresting tidbit I uncovered while wikiing: Sunflowers, while they don't hold back corruption or crimson in hardmode, can negate their effects on NPC housing to a certain extent per sunflower. Technically you could build your house in the midst of the Corruption and with enough sunflowers have the whole gang there.
this doesn't apply to Hallow anyway since Hallow does not interfere with NPC housing. We're talking about Corruption/Crimson voiding housing, sunflowers negate it.On mobile i have npc houses (they were actually spawnbases but a crafting bench adds npc houses) that are not only in now hallow, but i even have a house made of hallowed stone..and a hell house... mobile you fail...