Paragraph 84 Projects

A strategic technical partner to collaborate with private clients, planning consultants and architects from project inception

Paragraph 84 - What it is and how Mesh can help


Paragraph 84 of the National Planning Policy Framework is one of the very few planning routes that allows new dwellings to be approved in the open countryside or on Green Belt land, and it is intentionally demanding.


To succeed, proposals must demonstrate outstanding architecture and design quality, a deep response to the landscape and exemplary environmental performance.



Mesh’s engineers work closely with planning consultants, architects and private clients from the inception of a project to ensure Paragraph 84 projects are underpinned by robust building performance analysis to significantly increase project planning success.

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Paragraph 84 – An Explanation


Paragraph 84 is designed to protect sensitive rural landscapes whilst allowing genuinely exceptional architecture in specific circumstances.


Successful proposals must clearly demonstrate:


  • Outstanding design quality
  • How the dwelling is embedded in its setting and landscape
  • Exemplary environmental performance
  • Why the dwelling could not be delivered through standard planning policy.


Paragraph 84 projects are typically bespoke, large-scale dwellings for private clients where architecture, landscape and environmental strategy are inseparable.


How Mesh supports Paragraph 84 projects


Mesh is one of the UK’s most experienced building performance specialists in Paragraph 84 schemes, with an impressive project portfolio spanning over 10 years. 

Our role is to provide credible technical evidence that strengthens planning proposals and clear, practical insight to inform the design.

Diagram of houses with curved sun paths and a bright sun showing shading angles.
  1. Part O overheating assessments


In order to mitigate the risk of overheating, particularly for highly glazed dwellings, we can assist with:


  • Early-stage overheating risk analysis to inform concept design
  • Full Part O compliance, including TM59 dynamic thermal modelling where required
  • Passive-first mitigation strategies to protect design intent.




2. Whole life carbon modelling


We support planning cases with:


  • Embodied and operational carbon assessments
  • Material selection and sourcing analysis
  • Clear justification of construction choices in relation to site location and longevity.







3. Energy and building services feasibility studies


A coherent energy strategy is a key expectation under Paragraph 84. We undertake early-stage feasibility studies to assess: 

  • Low-carbon heating and cooling options
  • Renewable energy integration
  • Ventilation and comfort strategies
  • Plant sizing and spatial requirements.
Three people in a bright office meeting, discussing seated around a table

4. Integrated design workshops


The strongest Paragraph 84 projects are collaborative. Our engineers participate in design workshops with planning consultants, architects and clients to ensure each proposal is co-ordinated, defensible and resilient under scrutiny.

Increasing the Chance of Planning Success


Mesh helps clients and their teams by:


  • Reducing planning risk through early, evidence-based design
  • Strengthening submissions with credible performance data
  • Avoiding costly redesign and planning delays through early-stage collaboration
  • Supporting the delivery of homes that are genuinely exceptional – not just visually striking.


Let’s Start a Discussion


If you are a planning consultant, architect or private client considering a Paragraph 84 proposal, do reach out to discuss how we can support your project – info@mesh-energy.com



Modern house with large glass windows set in a sunny, grassy garden with purple flowers and trees

Latest Insights

15 June 2026
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
Building performance specialists Mesh names in the Sunday Times Best Places to Work List 2026
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Building performance specialists Mesh names in the Sunday Times Best Places to Work List 2026
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Mesh Energy wins Energy Efficiency Consultancy of the Year for innovative low-carbon solutions. Contact us for expert energy strategies.