Compliance

Compliance is a critical part of all modern and functioning buildings. Get comprehensive support for those tackling the ever-growing minefield of building regulations.

As part of our building performance consultation package, we can include the following compliance services:

Part L SAP
Calculations

For new and existing dwellings, we help you calculate and meet building fabric efficiency and carbon emissions targets.

Part G Water
Calculations

For new and existing dwellings, we help you calculate and meet increasing more stringent water efficiency targets.

Part O Overheating
Calculations

Keep cool and let us help make sure your building complies with the brand-new thermal overheating compliance targets.

SBEM & BRUKL Calculations

For new and existing commercial buildings having to comply to Part L2, we help you calculate and meet energy use and carbon emissions targets.

BREEAM Assessment (excellent & outstanding)

From “Shell Only” to “Full Fitout” we can help you to comply with the BREEAM third-party certification process for a truly holistic and sustainable commercial project.

BREEAM AP
Assessor Services

Let us help your next BREEAM project succeed with a dedicated Accredited Professional who can help guide you through the process.

CIBSE TM
Assessments 

From Overheating to Building Energy Metering and from Energy Assessment to Operational Energy Use we can support and report against a wide range of CIBSE TM standards.

Collage of urban planning report covers in white, green, blue, and gold designs.

Latest Insights

Mesh - finalist for the Energy Efficiency Awards National Consultancy of the Year Award

Mesh Announced as Finalist for National Energy Efficiency Award

15 August 2026
Building performance specialists Mesh have been announced as a finalist for National Consultancy of the Year at the Energy Efficiency Awards
A listed heritage building where Mesh advised on the energy strategy to improve efficiency

How to Decarbonise Heritage and Listed Homes and Buildings

15 August 2026
An article from energy specialists Mesh advising owners of historic buildings and listed homes on the measures to improve energy efficiency and decarbonisation.

Reducing the Environmental Impact of our Business and Supporting Global Carbon Reduction Initiatives

10 August 2026
As part of our sustainability and netzero commitments, we contribute to the Climate Action Workforce – a service provided by Ecologi that allows businesses to fund certified carbon reduction and tree-planting projects on behalf of their employees. This helps us to engage our teams in collective environmental impact, supporting global reforestation, habitat restoration, and certified carbon avoidance initiatives. In the past month, we have contributed to: - Agroforestry in Kenya - The provision of fuel-efficient cooking stoves in Uganda - Protection of the Matavén forest in eastern Colombia. Since Mesh joined the Ecologi scheme, we are proud to have supported 85 global projects , each carefully vetted for quality and impact. If you would be interested in measuring and reducing your business carbon footprint and contributing to global carbon reduction schemes, do check logout Ecologi .