If you need an address in English for filling the immigration form, here it is.
3-3-1, Tabata-shinmachi
Kita-Ku, Tokyo, 114-0012 Japan
Since I'd asked the owner several times about this, she might misunderstand what I ask for, finally I had to ask my friend to translate from Japanese to English for me.
The house is about 10 mins. walk from Tabata train station, there's 7-11 on the way to the place. It's not a busy area, people can walk on the street to the station in the morning. You might hear the noise of trains at night, but not too loud to sleep.
The bathroom quite compact, there's not enough cloth hanger, you may not be able to change your clothes in the bathroom.
The wifi password is in the folder in a drawer in a bedroom which I couldn't find it at first night. The wifi signal is excellent though.
There're very clean bath towels in front of the bathroom, enough kitchenware for small cooking. However, I found an opened can of beer and some leftover food in the fridge on the first day I arrived which make me curious about the house cleaning.
The stairs to the second floor quite steep, might not suitable for the elder, better book for the first floor room.