EPC Penarth

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No Designated Assessor covers Penarth yet. If you’re an accredited domestic energy assessor working in this area, claim the town and customer enquiries come straight to you — no panel, no commission.

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EPC in Penarth – Energy Performance Certificates

If you’re selling or letting a property in Penarth, you’ll need a valid Energy Performance Certificate (EPC). An EPC shows how energy-efficient a property is and is required before a home can be marketed.

If you’re unsure what an EPC is or when it’s needed, see our guide: What is an EPC?

Why get an EPC in Penarth?

Penarth has a broad mix of period homes, coastal apartments, and modern housing, all of which can affect how an EPC is assessed.

A local EPC assessment helps to:

  • Meet legal requirements when selling or letting

  • Understand current energy efficiency

  • Identify practical improvements to reduce running costs

  • energy efficiency upgrades and paperwork

What happens during an EPC assessment?

During an EPC assessment in Penarth, the assessor will look at:

  • Property size and layout

  • Construction type and insulation (where visible)

  • Heating system and controls

  • Hot water provision

  • Windows, glazing, and lighting

The visit is non-invasive and usually takes 30–60 minutes, depending on the property.

How quickly can I get an EPC in Penarth?

In most cases:

  • Appointments are available within a few days

  • The assessment is completed in under an hour

  • The EPC is lodged on the national register within 24 hours of the visit

EPCs for landlords and sellers in Penarth

An EPC is required if you are:

  • Selling a house or flat

  • Letting a residential property

  • Advertising a property through an estate or letting agent

Landlords must also ensure the property meets Minimum Energy Efficiency Standards (MEES). More details can be found in our guide: EPC requirements for landlords.

Book an EPC in Penarth

To arrange an EPC in Penarth, use our assessor search to check availability and pricing and to book an appointment.

If you’re looking for an EPC in the wider area, you can also visit:

Already had one done? You can check an existing EPC for your Penarth address on the official register before you book.

EPC data for Penarth

Figures below are for Vale of Glamorgan, the local authority covering Penarth, from the Energy Performance of Buildings Register to 2026 Q2.

2,455EPCs reach their 10-year expiry in the next 12 months
Band CThe most common rating, on 51% of certificates
43%Rated D or below, against 46% nationally
£1,024Average estimated heating cost a year

That expiry count is certificates lodged ten years ago and now coming up for renewal. Some of those homes have already been re-certified since, which authority-level data cannot show, so treat it as the ceiling rather than a to-do list.

How Vale of Glamorgan rates

Share of the 14,805 certificates lodged in the five years to 2026 Q2. This is the certificates lodged, not a survey of every home in the area.

What gets assessed around here

69% of the certificates lodged here are for houses. The average floor area is 96.1m², roughly 11m² larger than the England and Wales average. Estimated heating costs average £1,024 a year, £85 a year above the national figure. 39% of certificates were lodged for rented homes.

Radon in Penarth

Penarth sits in a radon Affected Area. The UKHSA and British Geological Survey put the 1km square covering the town centre in a band where between 3 and 5 in 100 homes are estimated to be at or above the radon action level of 200 becquerels per cubic metre. Radon is not measured during an EPC survey and does not affect the rating, but if you are buying, selling or improving a home here it is worth a test kit, and worth knowing before you seal a property up: draught-proofing and insulation work can raise indoor radon if ventilation is reduced. The atlas is indicative and works to a 1km grid, so it describes the area rather than any one property.

What an EPC costs in Penarth

An EPC around here generally costs between £55 and £150, though it depends on the property: floor area, whether there are rooms in the roof, extensions, and how far the assessor travels all move the price. We are not a panel and we do not set anybody's fees, so the figure you are quoted comes from the assessor doing the work. Contact one above for a price on your property.

Sources: MHCLG Energy Performance of Buildings Certificates live tables, 2026 Q2; UKHSA and British Geological Survey Indicative Atlas of Radon. Prepared 2026-09-11.

Elmhurst accredited EPC assessor

What to expect when a Domestic Energy Assessor comes to your property

Every Domestic Energy Assessor / DEA will have their own order and format of carrying out the EPC depending on the software that they use and their personal preference to efficiency.

Read More

Frequently Asked Questions

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