Require Energy Performance Certificate Information When Selling/Renting Houses

It would be great to see energy performance certificates required by estate agents for sales and rental properties, like they are in the UK.

Why the contribution is important

Buyers/renters would gain more transparency on property performance upfront and be able to make better comparisons and purchase decisions. Plus, it could encourage builders and owners to invest more in the building fabric and heating systems.

I realise this does have a cost to it (currently £200-£400 for an audit), but there are grants for up to £250 available from the Gov. People often don't realise the extent of what they could be saving without immediately accessible data, so continue on as they are.

Making those domestic energy inefficiencies visible and concrete to everyone via EPCs, rather than as an abstract idea, could help support a push for other improvements such as:

- increased building insulation and better glazing standards

- gas and oil heating phase out

- solar panel installation

- use of mechanical ventilation with heat recovery (MVHR) or air source heat pumps

- increased awareness of thermal bridging and other construction issues

- a move towards passivhaus and enPHit standards

by cb on February 06, 2021 at 09:58AM

Current Rating

Average rating: 5.0
Based on: 4 votes


  • Posted by SimonLanglois February 07, 2021 at 12:18

    On the grapevine I heard that it's only a matter of time before EPCs are required for all properties before they can be sold or let, and that would be a great incentive for home owners and landlords to get their houses in order, so to speak.

    As a Domestic Energy Assessor, I've found that there are a great many properties in Jersey with little or no loft insulation for example, with owners simply accepting and paying huge energy bills (to heat the sky!) when they could simply get insulation fitted and reap the financial rewards after a year or so.

    Yes, increase building standards, stop new gas and oil installations, encourage solar (both PV and hot water), heat pumps and heat recovery systems. This should have been done years ago.
  • Posted by ozzyjon February 10, 2021 at 14:43

    Great idea, mandatory reporting/certification could add an economic value to a home motivating owners to improve their rating.

    Maybe the stamp duty (or some other tax) could be reduced proportionally on homes that have better ratings.
  • Posted by JerseyFleur February 10, 2021 at 15:27

    This is a great idea! Knowledge is key so I think that it would be great if this could be accompanied by guidelines for different types of property that are common in Jersey, as the appropriate ways to insulate a concrete building differs from a lime-plastered Victorian property or a granite cottage and it is seems to be really difficult to find people who can advise on older buildings, despite the quantity of them in Jersey.

    With regard to recognizing the environmental cost of poorly insulated housing, in Switzerland (or just Geneva, I am not 100% sure), they are introducing something like this and are also setting a boundary for efficiency. I believe that properties that exceed the carbon allowance for their m2 effectively have to pay a form of "environmental tax" as a tribute to the environmental costs of their property's inefficiency.
  • Posted by antonygibb February 14, 2021 at 21:56

    It's necessary to realise the limitations of EPCs, which are based on RdSAP (the Rd standing for reduced data). The standard data inputs are often inaccurate: in situ testing has shown that that default U-values are different from 'real' performance in 73% of cases. It is also essential that energy assessors understand the different performance characteristics of older and traditional buildings (pre c1919), which rely for efficiency on maintaining vapour permeability.
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