Four million new homes will be needed in the UK by 2040, according to Cushman & Wakefield, the real estate consultants. Not everyone would be able to afford, or would want to buy one, so many more will be renting. As a result, the Private Rented Sector’s (PRS) share of all UK homes is expected to rise from 20% to 25%. To support this, rented supply needs to increase by 43%. Where will additional capacity come from?