S&P Global Ratings has assigned ratings to Canada Square Funding 2021-1 PLC's (CSF 2021-1) class A notes, class B-Dfrd to X-Dfrd interest deferrable notes. CSF 2021-1 is a static RMBS transaction that securitizes a portfolio of £244.6 million buy-to-let (BTL) mortgage loans secured on properties located in the U.K. The loans in the pool were originated by Fleet Mortgages Ltd. (53.4%), Landbay Partners Ltd. (34.2%), Topaz Funding Limited (under the brand name Zephyr Homeloans) (9.5%), and Hey Habito Ltd. (2.9%).