"Demand is being stoked by a strong jobs market, record immigration and rising mortgage rates," Donnell said. Mortgage crisisBritain's mortgage crisis has been brewing for months. Nicholas Mendes, a technical mortgage manager at mortgage broker and advisor John Charcol, told CNBC Make It that there are pros and cons to both. Prospective buyers may feel "trapped" in the rental market, which could deter them from trying to buy, they told CNBC Make It. Higher mortgage rates are prompting some of those who still have mortgages to pay off to pass on those additional costs to renters, he said.

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Persons: Oliver Knight, Knight Frank, Oscar Wong, Ed Monk, Richard Donnell, Zoopla, Donnell, Monk, Nicholas Mendes, John Charcol, Mendes, Urvish Patel, Barry Naisbitt Organizations: Fidelity International, CNBC, Mortgage, Bank of, Bank of England, National Institute of Economic, Social Research Locations: Britain