Once you move in, you can always save up for a year or two, rip out the drywall, put in some insulation and remount the drywall on resilient channels. Windows g

Once you move in, you can always save up for a year or two, rip out the drywall, put in some insulation and remount the drywall on resilient channels. Windows generally aren't a problem since even the crappiest code-minimum windows are pretty good these days. Floors are a challenge though, unless you can convince downstairs neighbors to put in some insulation or just straight up pay for it yourself.