Mesh Supports Forestry England’s Drive to Net Zero at Westonbirt, The National Arboretum
A Plan to Build Long-term Resilience and Improve the Energy Efficiency of Buildings on the Estate
Energy performance specialist Mesh has successfully delivered a sustainability project for Forestry England at Westonbirt, The National Arboretum, helping to improve the energy efficiency and long-term resilience of buildings on the 600-acre estate.
The historic arboretum near Tetbury, managed by Forestry England, is one of the UK’s most visited heritage sites, attracting hundreds of thousands of visitors every year.
Rapid growth in visitor numbers, combined with the impact of climate change, prompted the need for a clear, practical plan to reduce energy use and carbon emissions across the estate’s facilities including the visitor centre, café and restaurant and offices.
Following a competitive tender, Mesh was appointed to develop an evidence-based strategy to guide building upgrades, balancing sustainability ambitions and the transition away from fossil fuels in this sensitive rural and heritage setting.
Mesh took a whole-building approach, assessing how the buildings on the estate currently perform, how they are used at different times of the year in line with fluctuating seasonal visitor patterns, and how future changes to climatic conditions could affect running costs and user comfort.
This has enabled Forestry England to make informed decisions on heating solutions, energy supply and building fabric improvements, and to plan upgrades in a phased approach. It provides a clear framework for improving energy efficiency, and importantly, for moving away from fossil fuels.
Several of the strategies have already been implemented, delivering immediate energy efficiency improvements whilst informing longer-term refurbishment and upgrading plans.
Sophie Nash, Programme Manager at Forestry England:
“Our aim with this project was to use detailed analysis to steer our specifications for remediation and upgrading works to improve the energy efficiency and sustainability of our most heavily-used buildings at Westonbirt and the resilience of our electricity infrastructure to support future growth.
The assessments carried out which were very thorough and detailed, provide us with valuable insight to inform the design and specification of refurbishment and remediation works in a phased approach.”
Doug Johnson, Founder and Director of Mesh:
“For rural estates, landowners, parks and visitor attractions across the UK, this project for Forestry England clearly demonstrates how a data-led, whole-building approach can accelerate decarbonisation and create a clear route towards net zero – even in the most sensitive heritage environments and landscapes.”
The Westonbirt project reflects growing demand from rural estates, landowners and visitor attractions for clear sustainability strategies that reduce risk, improve performance and support long-term resilience.
Image credit - Forestry England / Brian Martin
The historic arboretum near Tetbury, managed by Forestry England, is one of the UK’s most visited heritage sites, attracting hundreds of thousands of visitors every year.
Rapid growth in visitor numbers, combined with the impact of climate change, prompted the need for a clear, practical plan to reduce energy use and carbon emissions across the estate’s facilities including the visitor centre, café and restaurant and offices.
Following a competitive tender, Mesh was appointed to develop an evidence-based strategy to guide building upgrades, balancing sustainability ambitions and the transition away from fossil fuels in this sensitive rural and heritage setting.
Mesh took a whole-building approach, assessing how the buildings on the estate currently perform, how they are used at different times of the year in line with fluctuating seasonal visitor patterns, and how future changes to climatic conditions could affect running costs and user comfort.
This has enabled Forestry England to make informed decisions on heating solutions, energy supply and building fabric improvements, and to plan upgrades in a phased approach. It provides a clear framework for improving energy efficiency, and importantly, for moving away from fossil fuels.
Several of the strategies have already been implemented, delivering immediate energy efficiency improvements whilst informing longer-term refurbishment and upgrading plans.
Sophie Nash, Programme Manager at Forestry England:
“Our aim with this project was to use detailed analysis to steer our specifications for remediation and upgrading works to improve the energy efficiency and sustainability of our most heavily-used buildings at Westonbirt and the resilience of our electricity infrastructure to support future growth.
The assessments carried out which were very thorough and detailed, provide us with valuable insight to inform the design and specification of refurbishment and remediation works in a phased approach.”
Doug Johnson, Founder and Director of Mesh:
“For rural estates, landowners, parks and visitor attractions across the UK, this project for Forestry England clearly demonstrates how a data-led, whole-building approach can accelerate decarbonisation and create a clear route towards net zero – even in the most sensitive heritage environments and landscapes.”
The Westonbirt project reflects growing demand from rural estates, landowners and visitor attractions for clear sustainability strategies that reduce risk, improve performance and support long-term resilience.
Image credit - Forestry England / Brian Martin
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Mesh Founding Director Doug Johnson has been invited to join the judging panel for this year’s Building Innovation Awards. These awards are a fantastic opportunity to showcase the incredible industry pioneers, innovations and technical advancements in UK construction. Together with a panel of influential clients and Tier 1 decision makers from across the construction sector, he will be evaluating the entries ahead of the awards celebration in Birmingham on 29th September 2026. The Building Innovation Awards the only awards scheme in the built environment sector to be recognised with the prestigious Outstanding Awards Trust Mark from the Independent Awards Standards Council (IASC). Doug Johnson: "It is an immense privilege to join such as esteemed panel of clients and industry professionals. We have so much to be proud of in the built environment and these awards are a brilliant opportunity to celebrate innovation which keeps our sector advancing, particularly in the areas of sustainable development and construction as we work towards net zero and the vital need to accelerate decarbonisation. Innovation is absolutely central to that." More details about the awards here .

Building performance specialist Mesh has completed a building services design project for a new flagship art gallery in Savile Row – Sadie Coles HQ. The six-storey Grade II listed Georgian townhouse in London’s Mayfair, which dates back to the 1730s, has been fully restored and transformed by lead contractor Work Ltd, to create a unique space for contemporary art. The building, once home to the Burlington Fine Arts Club in the 19th century, had been bomb damaged in World War II and used as offices post-war. It has now been sensitively reinstated as a space for artists to exhibit their work in a part of London which has a long association with contemporary art. The key aim of this extensive refurbishment project was to work to a fast-track programme for the gallery’s opening to coincide with the Frieze Art Fair. Mesh was appointed to develop a holistic MEP building services strategy, from concept through to detailed design, and in keeping with the character and constraints of this heritage building. Enhanced control of the internal environment was required to maintain visitor comfort all year round and in the context of continually fluctuating occupancy levels, including events for up to 200 people. Working within a Grade II listed building required a highly considered approach at every stage – historic architectural features were revealed and restored internally and externally, and extensive structural improvements were required to accommodate art loadings. These factors had to be reflected in the services design and specification. Mesh used dynamic thermal modelling for different scenarios of use to understand the heating and cooling loads required and to allow the services to be accurately sized for each room or gallery. Two priorities were cooling and for each area to be individually controlled according to occupancy levels. Discrete but robust heating and cooling provision was designed for the gallery areas and the MEP services were concealed in void spaces to avoid impacting on the architectural features of the building or the layout of the galleries. Plant and equipment had to be sited in compliance with stringent planning requirements, which limited the number, size, position and visual impact of the external units. Passive measures were introduced to reduce energy consumption and included actuated openable rooflights in a glazed lantern to purge warm air during the day and reduce the reliance on the active cooling system. Giles Reid, Giles Reid Architects: “The new gallery has succeeded in its ambition – to reaffirm that London has an important position in the global art world. This was a complex project which had to be delivered in just nine months from planning approval for the fixed deadline for opening, and despite having to carry out extensive structural alterations. The building is performing well from a services perspective, including at the opening event which was attended by around 800 guests. The M&E design in contemporary art spaces like this must never detract, visually or acoustically, from the art being exhibited and this has been successfully achieved. This is a fantastic statement building which has been acclaimed and the Client is thrilled. It is a credit to everyone involved that this historic building has been brought back into use for contemporary art.” Doug Johnson, Founding Director of Mesh: “This project demonstrates exactly what intelligent building services engineering should deliver – an integrated, high-performance solution to deliver year-round-comfort for visitors and users of the building whilst maintaining a clean aesthetic. Working within a Grade II listed building with complex planning restrictions required genuinely creative engineering rather than a conventional response. We are really proud to have contributed to this outstanding building transformation.” The Project Team: Client: Sadie Coles HQ Lead contractor (design and delivery): Work Ltd Architectural partner: Giles Reid Architects MEP design / building performance: Mesh About Mesh Mesh offers a range of design and engineering services to help organisations in the public and private sectors to improve the energy efficiency of new and existing buildings, housing and estates. This includes support for architects; planning; thermal modelling and overheating analyses; carbon reduction strategies; feasibility studies for renewable technologies; MEP design, and regulatory compliance. Architectural images - Joseph Asghar




















