typically, a rural house will have mosquito guards on windows
in regards to cockroaches, in a clean rural house, door guards, decent drainage guards, german cockroach ( the most common yet smaller variant of cockroach in hk) is not so common, however, the large American ( built as a tank and up to 5cm long, it's massive) generally don't live in rural houses, unless it's really old and dirty place, they occasionally do fly in through the windows a lot
I note that old tenement housing in less affluent areas have a constant cockroach problem
in regards to cheapness, a typical remote (ish)village in sha tau kok ( very accessible still have main road and frequent mini buses until midnight) 700 sq ft floot within a rural house can be as cheap as HK$5000 per month
also it's note that sea ranch is a isolated cheap paradise for some, but it's super remote and the ferry are not so common, ideal for hermits
Not referring to cage homes, or living in a cardboard box under a bridge, there are cheap subdivided flats where the tenants share the bathroom and kitchen, and the bedroom being not much big than a single bed for about 2k in most of the more densely populated areas such as Jordan, MK, Wanchai, etc.
One of my colleagues (who lives at home with his parents) rented one of these in Jordan last year for his hobby. He's a local and loves building and painting models, so for about $2k per month, he rented one of these rooms, asked for the bed to be replaced with tables and chairs, and then installed a DIY air extractor piping, and used the room as a small studio for his hobby.
I collect stamps and old books,
now that's an expensive hobby here.
He was living in Taiwan before teaching English at one of those cram schools, so he'll probably look for another teaching job.
How would one go about looking for a place in Jordon, or Mong Kok? And how does the contracts work? Like, do you have to sign a contract where you have to pay for the first 6 months up front or something along those lines?
You can easily be in the city in the north of New Territorries, HK is after all, just one big city, it just has a different feel (much more local) than Central etc. If you friend is a teacher then he could teach anywhere - he should look into the NET scheme for decent teaching jobs for qualified teachers. They get a housing allowance anyway and you can (and probably better to) apply while overseas.
2 months deposit + 1 month advance payment + 1/2 month rent commission to the agent, so your friend must have 3 1/2 months rent in cash when signing the contract.
I'd tell him to stay away from HK. Why live like a prisoner in a little cellsized flat in this overpriced city? Go somewhere else and get a life - I mean that in the nicest possible way.