Alex Wood, 43, and Alison Tilsley, 63, were on a day trip from a care home when they died on Roadford Lake, near Okehampton, Devon, in June 2022.
In March 2020, the One Direction singer donated to the charity – then known as Trussell Trust – to support more than 100 food bank centres.
A more energy-efficient buy-to-let property could attract a typical premium of £19,500 in England, if a landlord sold up, researchers found.