This hard to get to Bangkok hotel is down a tiny little Soi off of Amarin, this Soi is so narrow a car and bike cannot pass each other, not some where you would probably want to live, but it is quiet, ie there aint no passing traffic.
It's been a long time since I stayed in a Bangkok hotel that only costs 400baht per night, they aint that bad, they do the job, ie air-con, fridge, tv, normally would have hot water but I'm well 'ard so can manage a day or 2 without, most of the rooms are rented out to Thais on a monthly basis, obviously they don't pay those daily rates, but it's not a bad place to stay.
Tonjan Mansion
Soi Arun Amarin 20
Sala Tonjan
02 412 7029
400 baht per night
Exterior of hotel, looks like they used good quality paint so should be nice for a few years.
Communal hallway, nice coving, stainless security grills, walls all tiled so that will help keep it nice and cool in there, not too shabby is it.
From the bed covers you can see the place is owned and run by Thais.
No toilet tank but at least it is a sit down toilet and not a squat one.
Cold water sink, above this is the air-con compressor.
Nice flashy modern TV.
Wardrobes and entry to bathroom, the aluminum frame work and glass keep the noise of the air-cons compressor out of the main room.