You might consider using your bathroom as provisional darkroom. In case you have a bathtub you might install a board above it and set up enlarger and trays there.I mostly use b/w and home develop but I don't have room for an enlarger setup in my cramped house so I usually just scan and archive my negatives.
You might also consider a cabinet darkroom.
Or a tent construction. There is a dedicated tent from Nova but also several for weed growing (though with highly reflective lining):