Buy-to-let landlords have swooped into the property market to take advantage of the stamp duty tax giveaway, as the tax break means that their bills could fall by as much as half. Rentround, a letting agent comparison website, said the number of landlords contacting its agents across the country had risen by 22%. In north and east London, inquiries have risen by 31%, higher than anywhere else in the country. Meanwhile, in the cheaper parts of the country, such as the North East, the holiday has a minimal impact. Here, it will save investors £280 on the average purchase, compared to £7,240 in London, Hamptons International found. Kay & Co said: “We have seen buy-to-let investors return to the market but only on properties valued sub £1m and in most cases £500,000.”