A shortfall in the number of homes coming up for sale remains a major stumbling block for the housing market, economists at the Royal Institution of Chartered Surveyors have warned. While the Chancellor's Budget measures, including the extension of the stamp duty holiday until the end of June, will give the sector a boost, stock levels are low and prices continue to rise, it said. More estate agents now think property prices will continue to rise over the year ahead, amid the easing of lockdown restrictions and opening up of the economy. However, lockdown restrictions put sellers off putting their homes up for sale in February, the Rics said in its latest findings published today.