PART S · Electric vehicle charging
Part S building regulations explained
Part S concerns infrastructure for charging electric vehicles. It applies to specified new buildings, material changes of use to dwellings and major renovations. The required provision depends on the building category, associated parking and the applicable limits or exceptions.
Does every home need a charger
No. The rules are not a universal order to install a charge point at every existing home. Associated parking and the nature of the building work are central to the assessment.
A new house without associated parking raises different questions from a development with a car park. An ordinary refurbishment may not be a major renovation for these provisions.
What provision may be required
The guidance distinguishes active charge points from cable routes that support later installation. Requirements differ between residential, non-residential and mixed-use projects.
Do not assume that every parking space must have a charge point, or that installing an empty duct always satisfies the provision.
Why should electricity supply be considered early
Charging infrastructure needs suitable electrical design. Supply capacity, connection arrangements, routes and protection can influence cost and practicality.
For example, placing several chargers in a shared car park should prompt an assessment of the electrical arrangement before the parking layout and trenches are fixed.
What about cost limits and exceptions
Part S contains specified limits and exceptions. The designer needs to identify the relevant category and support any reliance on those provisions with appropriate information.
A statement that installation is expensive is not, by itself, a regulatory assessment.
What should owners arrange
Ask for the Part S scope assessment, parking schedule, electrical design and intended compliance evidence. Include operation and maintenance responsibilities for shared installations.
Keep installation and commissioning records. A charge point supplied as a promotional extra still needs suitable installation, and the building's required infrastructure should be clear independently of marketing claims.