About Us

Ecospheric is an award winning sustainability consultancy supporting projects to achieve ambitious targets for decarbonisation. We develop innovative solutions for complex passive house certified buildings, exceptional Paragraph 84e country houses, and integrated and holistic energy strategies for large-scale developments.

Research is at the heart of our mission to reduce the human impact on the environment and we believe the solutions we specify must be tried and tested. That's why we also build and develop properties which incorporate the latest low energy technologies and methodologies. Ecospheric's current property developments include 5 new build passive house premium certified dwellings, the zero energy retrofit of an Elizabethan-era grade II* listed manor house and the conversion of a 300-year-old Yorkshire barn to off-grid group accommodation.

We're also passionate about sharing our knowledge so that everyone in the building sector has the skills to reduce carbon in the built environment. Our team members advise on industry and public sector committees as well as speaking at universities and offering CPDs for architectural practices.

Team Members

Kit Knowles

Managing Director, MEng

Kit is a chemical engineer whose experience designing and building award-winning low energy retrofits enables Ecospheric to deliver optimal energy performance on every project - no matter the complexity.

Nuala Flannigan

Sustainability Consultant, MSc

Nuala is a certified Passivhaus designer and PHPP expert with experience certifying Passivhaus projects. She provides expert advice on optimising energy in buildings.

Luke Dickens

Site Manager and Researcher, MSc

Luke oversees Ecospheric's construction team and is completing an industry-based PhD researching the sustainable application of lime in the repair of sensitive masonry for historic buildings

Neil Buttery

Office and Accounts Support, PhD

Neil manages finance and accounts for Ecospheric in addition to his other career as a food historian and author.

Dave Wiles

Plastering and Stonework

Dave leads the on-site construction team in plastering and stone repair.

Oleksandr Katrenko

Site Construction

Oleksandr provides general on-site support for the construction team.

Ben Riddle

Technical Director, MEng, CEng

Ben is a certified Passivhaus Consultant, PHPP Expert, and approved certifier for the AECB Carbonlite Building Standard. Ben oversees technical design and certification services.

Rethu Rathinam

Sustainability Consultant, MSc

Rethu is an architectural assistant supporting projects by carrying out energy modelling and carbon calculations, building services design, and optimisation.

Ellie Knowles

Business Development, MCIPS

Ellie manages strategic operations for Ecospheric's developments overseeing the planning process, heritage considerations, and project management .

Russell Selby

Sustainability Consultant, MEng

Russell is a certified Passivhaus designer and CITB site manager. He currently supports our consultancy team with research specialising in low carbon buildability.

Freddy Blackman

Site Construction

Freddy supports the site team on joinery and other trades.

Gleb Katrenko

Site Construction

Gleb provides general on-site support for the construction team.

Niels Bezuijen

Sustainability Consultant, MSc

Niels is an architectural engineer, translating Ecospheric's technical advice into drawings and documents which can be seamlessly integrated into a client's design process.

Likhita Karanam

Sustainability Consultant, MSc

Likhita is an architectural assistant supporting projects by carrying out energy modelling and carbon calculations, building services design, and optimisation.