INDUSTRY VIEWFINDER 41


A YEAR ON: REVISITING CHANGES TO PART F & PART L


How much are the updates to Parts L and F adding to your build costs?


EXECUTIVE SUMMARY T


he Future Buildings Standard, due to be introduced in 2025, will require all new homes to produce 75-80% fewer emissions than current levels. To assist the industry in getting to that target, in 2022 an interim ‘stepping-stone’ to the standard was introduced. This took the form of a tightening of Parts L and F of the Building Regulations, and the introduction of Part O, to prevent consequent overheating. The new eulations will brin sinifi cant iroveents to the performance of homes (and non-residential buildings in the Future Buildings Standard, which encompasses the Future Homes Standard), but also come with serious challenges for the industry, in particular for some housebuilders. After the grace period since the launch of the new Part L, F and O last year, to allow buildings currently in the planning process to continue to the old Regs, as of June this year, all buildings must now conform.


In October 2023, Housebuilder & Developer undertook an ndustry iewfi nder survey to discover their views on the


important changes brought to housebuilding by the 2021 updates to the Building Regulations Part L (Conservation of Fuel & Power) and Part F (Ventilation) as well as the new Part  verheatin evised to rovide ore eneryeffi cient new homes as a stepping stone to the upcoming Future Homes Standard, the newly tightened Regs present a range of challenges to housebuilders, highlighted in our 2022 study. A year on from the original study, we canvassed housebuilders and develoers to fi nd out whether thins have iroved in terms of how they are tackling the changes brought by the updated Building Regs. We spoke to a similar number of housebuilders and developers (111 versus 119 in 2002). Most of the respondents were at director level within their fi rs , or anaer level , and 7% were buyers, and 5% contracts managers. The largest segment were housebuilding companies (61%, of which 29% classed themselves as developers). 11% were sole traders, and 8% described themselves as ‘small partnerships.’


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