Exceptionally rare property with perfect EPC rating hits the market

The latest analysis by Foxtons has revealed that homes with an EPC rating of A have accounted for an average of just 0.5% of all annual EPC lodgements made over the last 15 years. However, the firm has now listed an exceptionally rare occurrence, a property boasting a perfect EPC rating of 108 out of 108.

Foxtons analysed EPC lodgement data across England and Wales over the last 15 years, looking at the number of properties assessed and their corresponding energy efficiency rating in order to demonstrate just how rare such a home is within the current market landscape.

EPC standards improving

The research shows that while EPC A rated homes have historically been few and far between, accounting for just 0.1% of all lodgements between 2010 and 2014, their prevalence has gradually increased in recent years.

In 2019, A rated homes accounted for 0.3% of all lodgements, rising to 0.8% by 2023.

However, it wasn't until 2024 that this figure surpassed the 1% threshold for the first time, reaching 1.7%, before increasing again to 2.7% in 2025. Despite this upward trend, the highest possible EPC rating remains exceptionally rare, with the vast majority of homes still sitting well below this benchmark.

In fact, the latest figures for 2025 show that an EPC rating of C remains the most common, accounting for 48% of all lodgements and, whilst more homes are achieving higher EPC ratings, a perfect score remains virtually unheard of.

This places Foxtons' latest listing in a league of its own.

Property with perfect EPC hits the market

Set within the exclusive Coombe House Estate in the KT3 postcode of New Malden, the property itself is a standout eco home, offering a rare combination of architectural design and best-in-class energy performance. The detached home has been designed to maximise both efficiency and lifestyle, with a split-level interior that flows seamlessly into a south-west facing terrace and landscaped garden.

Unlike the majority of A rated homes, which tend to be developer-led new build properties, this home has been individually designed to achieve the highest possible level of energy efficiency. At a time when much of the conversation around EPC improvements centres on the cost and complexity of retrofitting older homes, from installing heat pumps to improving insulation, this property provides a rare example of what can be achieved when sustainability is integrated into the design of a home from the outset.

It boasts an array of eco-friendly features that give it a perfect 108 out of 108 EPC rating, including a solar array with battery storage that generates surplus energy, alongside an air-source heat pump and MVHR ventilation system designed to optimise efficiency and reduce heat loss. Internally, the property features open-plan living with vaulted ceilings, Swedish oak flooring and a bespoke kitchen fitted with Miele appliances, while externally, a morning sun patio and two custom-built garden rooms provide additional flexible space for home working, fitness or storage.

This exceptional home not only represents the very pinnacle of energy efficiency, but also offers buyers the opportunity to secure a future-proofed property in a market where sustainability and running costs are playing an increasingly influential role in purchasing decisions.

The property is now available via Foxtons, offering a rare opportunity to purchase one of the most energy efficient homes currently on the market: https://www.foxtons.co.uk/properties-for-sale/kt3/chpk2858703.

James Stevenson, Managing Director of Sales at Foxtons, commented:

"While we've seen a gradual increase in the number of homes achieving higher EPC ratings, properties that reach the very top tier of energy performance remain exceptionally rare, which is what makes this particular listing so notable.

"From our perspective on the ground, we are seeing energy efficiency become a more regular part of the conversation during viewings and negotiations, particularly as buyers consider the long-term cost of running a home. Whilst location, layout and overall finish remain the primary drivers of demand, features that can help reduce energy bills and improve the overall efficiency of a property are increasingly drawing attention.

"What makes this home especially interesting is that it combines those practical benefits with an exceptional standard of design. It's very unusual to see a property that delivers this level of energy performance without compromising on the quality of the living space, from the architecture and materials through to the way the home has been configured.

"This property sets a benchmark in that respect. It demonstrates what can be achieved when design, technology and sustainability are fully aligned."