Residential Secure Income Plc is a United Kingdom-based social housing real estate investment trust (REIT). The Company is focused on investing in residential asset classes that comprise the stock of the United Kingdom social housing providers. It is focused on sectors, such as shared ownership housing; Private rental, temporary housing and university housing; supported housing, assisted living/sheltered housing and elderly care housing; and affordable and intermediate housing and other sub-market rental housing. The Company's rental homes portfolio consists of 1,341 retirement properties. It also owns four freehold residential buildings in Luton, which contains 155 residential units. The Company's portfolio provides retail price index (RPI)-linked tenancies to retirement aged residents, offering lifetime security of tenure.