We have heard that some eager housebuilders have rushed to beat the Part J (Combustion appliances) deadline. It allowed them to save millions by registering their intention to start before October 1st. That way they gained an extra year before they have to start work under the old rules regardless of project programme length.
It is estimated that it will cost £2000 more to build a mid-terrace home to 2010 standards compared with 2006 ones. The new regs relate to concealed flues, CO detectors, biomass boilers, open flues, oil appliances and management of what comes out of chimneys (i.e plumes).