EPC Ratings for New-Build Homes in Harlescott, Shrewsbury

Why new builds start ahead

Current Building Regulations require a level of insulation, glazing performance, and heating efficiency that simply didn't exist a few decades ago. As a result, most Harlescott new-builds land in a B or high C rating from day one, without any retrofit work at all. Full-fill cavity insulation, double or triple glazing, and modern condensing boilers or air source heat pumps are standard specification rather than an upgrade homeowners have to seek out themselves.

This is a genuinely different starting position from older housing stock elsewhere in Shrewsbury, where reaching a B rating often requires significant, deliberate investment. In Harlescott, it's frequently the baseline.

What still catches people out

Even with a strong baseline, a few things commonly affect the final rating on newer properties, and I see these come up repeatedly during surveys:

• Smart heating controls — Some developments include basic thermostats rather than the zoned, programmable controls that score more favourably in the assessment. It's worth checking exactly what's fitted rather than assuming "new-build" automatically means the most efficient controls available.
• Glazing specification — Not all double glazing is equal. The specific glass type (such as low-emissivity coatings) and frame material affect the score meaningfully, and this is something I record precisely during the survey by checking the FENSA or CERTASS certificate rather than assuming from age alone.
• Solar panels or battery storage — If these were fitted after completion rather than as part of the original build, make sure any installation and commissioning certificates are available. The EPC can only credit systems it can verify are actually operational and commissioned, not just physically present on the roof.
• Loft conversions or extensions — If a new-build property has since been extended, the added space needs to be properly reflected in the assessment, and sometimes older paperwork doesn't capture this accurately.

Timing for new-build completions

If you're buying off-plan or close to completion, the developer will usually arrange the initial EPC as part of the build sign-off process, but it's worth double-checking this has actually happened and been lodged on the government register. I occasionally get called in on Harlescott properties where a certificate was expected as part of the sale but never followed through properly, causing delays at exchange. For conveyancing purposes, your solicitor will need to see a valid EPC before completion can proceed, so it's worth confirming early rather than assuming it's in hand.

What to expect during your survey

Because these properties are more standardised in construction, surveys are often quicker than on older housing stock, but I still measure every room and check the actual specification of insulation, glazing, and heating system rather than assuming a rating from the property's age alone. Every property is individually assessed, new-build or not.

Frequently asked questions