Former abandoned Kent dairy farm set in rolling countryside is to be transformed into 9 new super energy efficient, net zero carbon, architectural homes known as Hartdene Barns. J3 Advisory was instructed following a mutual connection, to arrange the 10 year building warranty insurance for the scheme.


Forward thinking developer QNEWHOMES have embraced sustainability, going way beyond current building regs and ensuring quality and sustainability is at the heart of all design choices alongside their architect Nissen Richards Studio and a host of other consultants.

QNEWHOMES are using lender Atelier and their Carbonlite Challenge product, which requires that the dwellings meet exceptionally high standards set by the Royal Institute of British Architects RIBA for embodied carbon, operational energy, and water consumption.

By specifying SIP panel timber construction using SIPS ECO, it is calculated that embodied carbon is reduced by 40% compared to traditional masonry construction.

Further measures across the scheme improve upon this, such as using low-carbon concrete, and the use of renewable technology including ASHP’s, MVHR, Solar PV and more.

A Whole Life Carbon Assessment was undertaken by Sustainability and Energy Consultant Darren Evans to consider the impact of every component in the build and steer design choices.

Collectively NET ZERO CARBON means that these generously proportioned and luxurious homes will have nearly zero running costs, all whilst being as environmentally sustainable as possible.

J3 Advisory were instructed following a mutual connection Barry Rae of Canary Connections, to arrange the 10 year building warranty insurance insurance for QNEWHOMES latest development.

J3 senior advisor Matthew Blackhall added, ‘This QNEWHOMES development makes for collection of one-of-a-kind homes. If you’re looking for a super energy efficient eco home that also has dramatic spaces and architectural details throughout, you’re bound to fall head over heels for these incredible homes.’

QNEWHOMES is a boutique development company based in S.E London, focused on providing high-quality homes in and around south-east London and the surrounding home counties of Kent, Surrey, and Sussex. Forging a good reputation locally and turning unused sites into much-needed housing. They act as developer, client and main contractor and embrace challenging and complex sites.

As an experienced developer, QNEWHOMES has a solid understanding of procuring and placing structural warranties for their schemes directly. However, they were introduced to J3 in order to explore other potential providers. Within 2.5 weeks, Matt was able to secure a selection of terms from the market and placed the scheme with provider Protek and their A-rated carrier.

Matt added, ‘The Protek team has been proactive and provided quick responses to queries raised. In addition, they were available at short notice to attend site which avoided any delays during the fast construction programme.’

QNEWHOMES’ Damien Wynne added, “It was apparent from my first conversation with J3 that they knew the length and breadth of the warranty market. That knowledge allowed us to unlock warranty options on what is a unique development. We needed a structural warranty partner who could work with us to keep the build moving forward, and that’s where Matt and the J3 team came in. We were impressed with their responsiveness and quick turnaround time for information. Overall, it was an impressive experience working with J3 Advisory and I would certainly recommend them.”

Jack Bristow, MD for J3 Advisory, said, ‘I always find working with experienced developers the most rewarding insurance to arrange. You’re dealing with people that know our market, and the providers within it, which means we really have to demonstrate our up-to-date knowledge of providers and policies to make a notable contribution – Fortunately something that Matt does very well. I’m very much looking forward to seeing the final product that Damien and the QNEWHOMES team deliver on this exciting and forward-thinking development.’