Part S EV Charger Pre-Wiring for New Builds in North West & North Wales – What Developers Need to Know
- Jago .W - ON-EV
- 19 hours ago
- 3 min read
As new homes continue to spring up across Chester, Wrexham, Anglesey, Conwy and the wider North West & North Wales, Part S of the Building Regulations is now a legal requirement for every new build and many major renovations.
At ON-EV we’ve seen a big rise in requests for Part S compliance work, so here’s exactly what it means and why it matters for local homeowners and developers.
What is Part S?
Part S is the section of UK Building Regulations that makes sure new homes are EV ready. It requires developers to install the necessary infrastructure so that an EV charger can be easily added later without major disruption or extra cost.
In simple terms, it means:
A dedicated electrical circuit from the consumer unit to the parking space
A suitable cable route and containment
Space for a future wall-mounted or pedestal charger
Compliance with the latest IET Wiring Regulations
This applies to almost every new dwelling with a parking space, whether it’s a detached house in Anglesey or a new estate in Wrexham.
Why Part S Matters for Local Buyers
Without Part S pre-wiring, adding a charger later can easily cost £1,500–£3,000 extra in groundworks, trenching and electrical upgrades.
With Part S done correctly at build stage, the cost of a full charger installation drops dramatically, often to our standard £800–£1,200 range.
We’re already helping local developers and self-builders in Chester, Flintshire and Conwy get this right first time so future owners don’t face expensive retrofits.
How ON-EV Handles Part S Installations
We work directly with builders, architects and homeowners to deliver fully compliant Part S infrastructure:
Correct cable sizing and containment
Dedicated EV-ready circuit from the main board
Future-proofed connection points
Clean, tidy installation that meets building control sign-off
Option to install the actual charger at the same time (Zappi, Easee, Wallbox, Andersen or Hydra Cubus)
Whether it’s a single plot or a small development of 8–10 homes, we provide the full Part S package with the same clean, minimal-disruption approach we use on every job.
Get Part S Done Right First Time
If you’re building or buying off-plan in the North West or North Wales, make sure Part S is properly specified and installed.
We offer a complete Part S design and installation service across Chester, Wrexham, Ellesmere Port, Anglesey, Conwy, Flint and surrounding areas.
Want a no-obligation Part S quote?
Message us on WhatsApp or fill in the quick form below and we’ll get back to you the same day.
Frequently Asked Questions
What is Part S Building Regulations?
Part S is the section of UK Building Regulations that makes new homes “EV-ready”. It requires a dedicated electrical circuit, cable route and connection point so an EV charger can be easily installed later without major disruption.
Does Part S apply to new builds in North West and North Wales?
Yes. It applies to almost every new dwelling with a parking space in Chester, Wrexham, Anglesey, Conwy, Flint, Denbighshire and the wider North West & North Wales region.
How much does Part S pre-wiring cost?
With ON-EV, full Part S compliant pre-wiring typically costs between £250 and £850 depending on the property layout and cable run length. Installing the actual charger at the same time is significantly cheaper than retrofitting later.
Can Part S be added to a new build after completion?
Yes. Even if the developer didn’t install it, we can retrofit full Part S infrastructure cleanly and cost-effectively.
Why should I get Part S done at build stage?
Doing it during construction saves thousands compared to adding a charger later. Future-proofing now means you can install a charger for a fraction of the price whenever you’re ready.
Do you install the actual charger as well?
Yes. We offer a complete Part S + charger installation package using any models from Zappi, Easee, Wallbox, Andersen and Hydra Cubus.
