Apts.jp
https://apts.jp
Discrimination is rife in Japanese real estate, and even if the real estate agency is eager to assist you, they may have difficulty finding an apartment that will accept your application. Before your application even gets to the owner, it first must pass through the property manager. If this person has been instructed to refuse foreign tenants, the answer will be no. Japanese agencies are used to working with Japanese people and are often unaware of which property management companies reject foreign tenants. You may be shown floor plans for great apartments in the area, and perhaps even send in an application, only to find out you don’t qualify. This ends up being a huge waste of time plus the emotional upset of being rejected on the basis of nationality. This agency specialises in apartments for foreign residents All the apartments on their website are guaranteed to be foreigner-friendly, and they also perform custom in-depth searches of the Japanese real estate databases to find listings that are likely to accept your application.
RealEstate.co.jp
https://realestate.co.jp/rent
Described as " The most comprehensive site of all is realestate.co.jp, which offers the most detailed filters for both rent and buy listings. In addition to standard properties, they list furnished and short-term rentals, making it a great starting point for your search."
Housing Japan
https://housingjapan.com/
Housing Japan is a real estate agents that specialise in servicing expats and international investors. It does offer filter options (but not many) and is geared toward luxury properties (i.e. they don’t even bother with rental properties below JPY 150,000 per month).
Plaza Homes (Real Estate Tokyo)
https://www.realestate-tokyo.com/
Plaza Homes (Real Estate Tokyo) is a real estate agents that specialise in servicing expats and international investors. It does offer filter options (but not many) and is geared toward luxury properties (i.e. they don’t even bother with rental properties below JPY 150,000 per month).