Avoid a Part L headache!
Why should you take interest in Part L of the building regulations at design stage?
Fundamental Design Integration: Part L compliance is not an add-on; it requires systemic thinking that influences core design choices
Mandatory Legal Compliance: Part L (Conservation of Fuel and Power) is a legal requirement in the UK. Non-compliant buildings cannot be "signed off" by Building Control
Optimization and Cost Efficiency: Addressing Part L at the design stage allows for the most efficient and cost-effective solutions.
The only way to ensure compliance for a new build domestic property is to create SAP calculations that put the design against the notional energy model set out in Part L of the Building Regulations.
Building Regulations ADL Vol 1 2:2 actually states “The dwelling primary energy rate, dwelling emission rate and dwelling energy efficiency rate must be calculated at both of the following points using the same calculation tool.
a. Before work starts, using design values.
b. When work is complete, using figures for the building as constructed…”
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