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Meet the team

Tim Lunel

Project Manager for Cosy Homes Oxfordshire

Tim is an experienced project manager. He was Chief Executive of The National Energy Foundation 2005-2012, and is Chair of the Microgeneration Certification Scheme – so he has been working in the home energy sphere for much of his career. During that time, the technologies to improve the fabric of buildings and low carbon technologies have improved significantly, and the UK has made progress in decarbonising its grid.

Tim is the Treasurer of Hook Norton Community Land Trust and has led the project to get planning permission for 12 new-built PassivHaus homes. He is the Company Secretary of Hook Norton Low Carbon Limited – a low carbon community group that was awarded the status of Energy Neutral Village in 2014 in the ACE Awards (Academy of Champions for Energy), one of Europe’s most high-profile events that recognise achievements in renewable and sustainable community energy.

See Tim’s full profile on LinkedIn

Russell Smith

Russell Smith

Founder of RetrofitWorks and Parity Projects, and Cosy Homes Oxfordshire project partner

Russell is a chartered civil engineer with years of experience in retrofitting and is the founder of both Parity Projects (leading exponents of retrofit expertise for larger-scale approaches) and RetrofitWorks.

He has run a number of large scale retrofit programmes – most recently the £4.5m Warmer Homes programme on behalf of the Mayor of London, and is involved in a 250 heat pump roll-out for OVO energy. As MD of Parity Projects, he has worked with the Greater Manchester Combined Authority to build a model of their 1.5m homes, and a national retrofit model to support plans for a National Retrofit Programme for the Construction Leadership Council.

Widely recognised as an industry expert, Russell is a regular speaker at conferences and a contributor to industry publications.  Take a look at the RetrofitWorks LinkedIn posts for links to his latest interviews, articles and podcasts.

See Russell’s full profile on LinkedIn.

Geordie Stewart

Cosy Homes Oxfordshire Scheme Manager (RetrofitWorks)

A skilled construction and project manager with over 25 years of international experience, Geordie is passionate about sustainable and energy-efficient solutions in the built environment. He is a trained Retrofit Coordinator and manages the Cosy Homes Oxfordshire team based in Charlbury, Oxfordshire.

Geordie gained a distinction in his MSc in Architecture and Advanced Environmental and Energy Studies at the Centre for Alternative Technology (CAT) and the University of East London.

See Geordie’s full profile on LinkedIn.

Natasha Ginks

Natasha Ginks

Retrofit Coordinator

With nearly a decade of experience working in sustainable renovation energy efficiency and renewables, Natasha is a skilled project manager helping people tackle the climate crisis by reducing the carbon footprint of their homes.

She is a qualified Retrofit Coordinator under PAS 2035 and has also completed an extensive eco-renovation on her own property using reclaimed materials and Passivhaus principles.

She is the founder of Renovate Green, a consultancy dedicated to sustainable home renovation.

See Natasha’s full profile on LinkedIn.

Mark Saunders

Retrofit Coordinator

Mark is an accomplished project manager with over 25 years of experience overseeing environmental and social programmes to achieve transformative change.

He is a trained facilitator with an open and approachable style working with a diverse range of people. In the course of running projects, he also had valuable experience in quality assurance, methodologies for evaluating outcomes and preparing clear concise reports.

See Mark’s full profile on LinkedIn.

Justine Mallinson

Client Support Coordinator (RetrofitWorks)

Justine has been a Retrofit Coordinator with Cosy Homes Oxfordshire since May 2022. Operating in the sector for over 15 years, she also works for The Retrofit Academy as a tutor and mentor, helping others to learn about retrofitting and to qualify as Retrofit Assessors and Coordinators under PAS2035.

With the rising interest in retrofitting homes in the UK, many people still have a limited understanding of the practises and processes involved. As a Coordinator, Justine can provide even greater support to these people, helping them to achieve maximum energy efficiency in their homes. She is motivated to make a difference in the sector not only to make homes cheaper to run and healthier to live in but also to reduce carbon emissions.

Justine has an MSc in Sustainability and Adaptation Planning from The Centre for Alternative Technology (CAT) and is also a Domestic Energy Assessor and Retrofit Assessor, as well as being qualified to assess traditionally built and listed properties.

She is midway through a deep retrofit of her own property, which means more often than not weekends and holidays are spent working on her home. She one day hopes to have enough spare time to return to her hobbies of art and restoring antiques.

See Justine’s full profile on LinkedIn.

Arantxa Mathias

Client Support Coordinator (RetrofitWorks)

Arantxa is the key point of contact for new customers and existing customers up to the point of retrofit work starting on your home. She will be coordinating and guiding you through the process and supporting any queries you may have.

An experienced administrator, Arantxa has previously worked in customer services for the hospitality, design and Innovation sectors. She is based in our Charlbury office and is enjoying supporting the team and developing her knowledge of retrofit.

Michael Huth

Membership and Supply Chain Manager (RetrofitWorks)

Michael is responsible for building up and supporting our membership network of trusted contractors, installers and architects to provide a quality whole house retrofit service.

He has an extensive understanding of the built environment, and the use of sustainable materials and renewable energy systems and is passionate about helping companies create healthy low energy and low carbon building envelope, reducing the risk of unintended consequences.  

See Michael’s full profile on LinkedIn.

Cathy Ryan

Community Engagement Manager (Low Carbon Hub)

Cathy is Community Engagement Manager for the Low Carbon Hub and supports our Cosy Homes Community Advocate Groups by attending events and holding regular meetings.

Having previously worked with a theatre company exploring the effects of homelessness on the lives of young people, Cathy has developed a lasting interest in housing. She is Chair of Hook Norton Community Land Trust, developing a community-led housing project of affordable, sustainable homes.

Harry Bratt

Marketing and Communications Coordinator (Low Carbon Hub)

Harry is a data-driven communications professional who has worked for several non-profits in environmental conservation, wellbeing and nature connection.

Having trained as a multi-media journalist with The University of Leeds, he supports marketing and communications activity across all online and offline channels for Cosy Homes Oxfordshire, focusing on how individuals and communities can make a difference for the environment while improving their homes.

See Harry’s full profile on LinkedIn.

Contact us

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