The Concordia project run by the Lutheran Church Hong Kong Synod will see 30 rooms at the IW hotel on Wai Yip Street in Kwun Tong rented out for between HK$3,900 and HK$4,810.
The rooms range in size from 147 to 185 square feet and the monthly charge will include WiFi and basic electricity and water fees.
To be eligible, applicants must be married, have waited for a public flat for more than three years, and meet the income and asset rules for a two-person family applying for public housing.
Successful applicants will be able to move in as early as the middle of next month, with their temporary housing to last up to two years.
Application will be accepted from now until December 2.