Wall Street’s zest for a corner of suburban real estate long left to small landlords is reaching new heights, attracting institutional investors, homebuilders and apartment managers during a pandemic that has ignited demand for larger homes.

The pension manager for the Canadian Mounties is the latest investor in single-family rentals, joining JPMorgan Chase & Co.’s asset-management arm and Nuveen Real Estate in a bet that there are lots of Americans who want spare bedrooms and backyards, but don’t have cash for down payments.

“It’s really an inflection point in SFR,” said Michael Carey, a senior director for Altus Group, an advisory firm. “It used to be an alternative asset class. Now people look at it as a solution.”