Deliver Net Zero Across Your Estate With Confidence

Twelvetrees delivers digital twin modelling, estate decarbonisation planning, and carbon management software that enable organisations to prioritise projects, secure funding, and reduce emissions more quickly.

Led by Director Dr John Hindley, who brings over 25 years of experience in sustainability and decarbonisation, the company provides expert support across sustainability, estates management, carbon and energy strategy, and digital twinning.

Our Services

At Twelvetrees we operate through two complementary branches: Twelvetrees Consulting, which provides strategic advisory and management consultancy services, and Twelvetrees Digital Buildings, which focuses on digital technologies and data-driven solutions to improve building performance and efficiency. Through these services, we support organisations in measuring carbon emissions, energy use, and resource consumption, helping them develop carbon footprints, set credible net-zero targets, identify effective decarbonisation projects, strengthen ESG reporting, and monitor and continuously improve their environmental performance.

Decarbonisation and Project Mangement Consultancy for Estates

Through Twelvetrees Consulting we provide management services such as carbon accounting, environmental strategy, project management support and the development of clear Carbon Management Plans. Helping organisations turn environmental commitments into practical, measurable action.

HVAC Digital Twin Modelling & Heat Pump Optimisation

Through Twelvetrees Digital Building we use HVAC simulation and calculation software designed to optimise your heating, cooling, and air handling systems. Enabling more efficient system modelling and supports informed decisions that contribute to low-carbon and net-zero building performance.

Estate Decarbonisation Software & Carbon Management Platform

Through Twelvetrees Digital Building we operate and provide the Twelvetrees Decarbonisation Hub. The Hub is a digital platform designed to help organisations plan and manage their journey to net zero. It brings together estate data and project data to support the development of clear carbon reduction strategies.

Who We Help

Support for carbon management plans and heat decarbonisation strategies, including guidance and delivery aligned with Public Sector Decarbonisation Scheme (PSDS) funding requirements.

Specialist support in developing heat pump business cases, ensuring compliance, and delivering effective estate decarbonisation across healthcare facilities.

Development of Net Zero roadmaps, asset prioritisation strategies, and strong funding applications to accelerate decarbonisation programmes.

Comprehensive ESG reporting, energy optimisation strategies, and advanced digital twin modelling to improve performance and reduce emissions.