Peter Bolton King, chief executive of The National Association of Estate Agents, said: "The indecision over the last month, since the Chancellor first mentioned the possibility of changes to stamp duty, had a major effect on consumer confidence and killed off a large proportion of sales. So we welcome the certainty - but the measures will not have the impact needed to revive the housing market in London and much of the South-East due to the high average price of first-time-buyer properties. "In addition, the Government's offer of interest-free five-year loans of up to 30 per cent of the property's value for first-time buyers when buying a new home from developers discriminates against the second-hand market, where property will continue to stagnate."