Building Regulations in England & Parts L, F and O
With the transitional period now over, the updated 2022 Building Regulations Part L, Part F, and the new Part O, became legally enforceable for all new residential projects.
This is the biggest regulatory change the construction sector has seen in the last 40 years and a stepping stone in our transition away from fossil fuel systems toward decarbonised homes and the electrification of heat - and ultimately, the Future Homes Standard. This shift will impact the way we design buildings and specify technologies.
Have you decided which technologies to specify to achieve compliance for your next residential project?
The new English Building Regulations came into law on the 15th of June 2021. For projects with existing planning permission there is one year transitional arrangements period that applies on plot-by plot basis.
The updated Part L outlines the four compliance metrics for new developments: primary energy target, carbon emissions target, fabric energy efficiency target, and minimum standards for building fabric and building services.
The ventilation system choice under the updated Part F is linked to aritightness as we look to increase indoor air quality. New Part O offers modelling to help mitigate the risk of overheating in buildings.
We designed a simple guide to the changes to Part L and Part F, and the new Part O, and discuss what they may mean for your project.
Our range of HVAC solutions aim to provide future proof technologies to building projects over various sectors.
Request our presentation on Building Regulation changes that answer the most frequently asked questions.
Latest News
Our news section cover building regulations, what the changes to Part L, F, and the new Part of O entail, and what this means for HVAC specification.

Spring clean your way to a healthy home
Whether you mark the changes of season by the meteorological calendar or the astrological calendar, spring has officially sprung. Though it may not seem like it we’re now in the season of daffodils, blossoming trees and longer days, which puts many of us in the mood for spring cleaning. Here we take a look at some of the ways you can ensure a clean, healthy home for you and your family as the year moves forward.

What are the changes to Part L implemented in June 2022?
The updates to parts of Building Regulations that deal with energy performance in Scotland and Wales are being introduced to support the net-zero trajectories in both devolved nations.

Glen Dimplex responds to new Building Regulation Approved Documents
This week saw the long-awaited publication of the English Building Regulations. Having contributed to the workshops and consultations that led to these new Approved Documents, we were pleased to see much of the industry feedback cited appears to have been incorporated, particularly in the case of flexibility when replacing traditional fossil fuel systems.