Grangewood delivers the UK’s first BREEAM ‘outstanding’ Grade II residential property for Grosvenor

Grangewood has successfully completed the UK’s first BREEAM ‘Outstanding’ transformation to a fine Grade II residential property in Belgravia, on Grosvenor’s London estate.

The period property in Ebury street SW1, which was formerly a run-down hotel spanning 4,200 sq ft over five floors (now six), has been transformed into three market leading sustainable rental apartments, setting a new environmental standard.  Designed to reduce carbon emissions by over 75% (from the property pre-development), the dynamic refurbishment is almost 30 years ahead of the national carbon reduction target of 80% by 2050.

Mike Stevens, Grangewood’s Managing Director comments: “119 is the eco-friendliest grade II listed home in the UK. It sets a new benchmark for everyone to follow in the sustainable retrofit of listed buildings in the UK.

Grangewood used cutting edge retrofit methodology, weaving sustainable, ultra-low carbon impact technology throughout the listed building.

Mike explains: “At least 50% of what we have learnt and achieved on this project could be readily adopted and applied to other listed properties. It really demonstrates that a low carbon solution can be cost effectively achieved. It’s a big step forward for the industry.”

As part of the never ending battle to ensure heritage London buildings are preserved, Grangewood hopes the project will set a precedent for listed properties so that they fit for purpose for future generations to come.

Managing and achieving high levels of sustainability in heritage properties has always been considered to be inherently difficult. But 119 is a trailblazer that paves the way, demonstrating how their environmental impact can be reduced while preserving historically significant urban fabric.

Victoria Herring, Director of Refurbishment and Retrofit, London estate, Grosvenor said: “This marks an exciting milestone in our industry’s ongoing effort to reduce emissions from heritage buildings in central London and beyond, and dispels the misconception that energy efficiency in its highest form is only achievable in new-build properties.”

The building was designed from the outside in. Grangewood used new materials, researched and sourced far and wide to deliver the high quality finish and ground-breaking credentials needed to attain the ‘outstanding’ accolade.

For the tenants living in the properties they can expect to save up to 50% on heating bills, due to better insulation. The homes’ green credentials are backed by features including secondary vacuum glazing; rainwater used to flush toilets; solar thermal energy panels, high-tech breathable insulation materials and super-efficient boilers.

Mike adds: “Achieving and maintaining the historic fabric while interweaving new eco-friendly materials was challenging. Addressing the buildability issues and ensuring the old and new worked seamlessly together was not without its difficulties, but I consider we are now entering new territory.

A ‘build as you go’, collaborative approach and team work were key to the projects successful delivery, not forgetting the many years of combined experience and expertise within the team refurbishing and improving the listed fabric of London.”

The project is part of a wider sustainability initiative by Grosvenor to reduce emissions across the whole of its London estate by 50% by the year 2030. A goal made far more challenging by the fact that 25% of properties on its London estate are listed.

The completion of 119 Ebury Street follows Grangewood’s successful delivery of several other sustainability projects for Grosvenor, across its estate. Three of its properties last year became London’s first ever rental properties to achieve the highly regarded Passivhaus status.