wellbeing and comfort
air quality, thermal and visual comfort

crave good daylighting, air quality, and comfortable annual temperatures?

energy efficiency, climate resilience

want an energy-efficient, or net-zero, or net-positive energy home?

low impact
healthy materials, whole-life carbon, biodiversity

care for a home that treads lightly on the earth, and encourages native bio-diversity?

our vision

Bright Green Studio designs beautiful, comfortable, energy-efficient, low-impact, future-ready homes. We design with performance, comfort and wellbeing at the heart of everything we do, to help you create happy, healthy homes.

Whether your goals are bringing in more natural light, ensuring your home is warm in winter and cool in summer, creating more space for your family, making use of natural materials or reducing environmental impact, we can help create a home that is beautiful, efficient, comfortable and a pleasure to live in both now and in the future.

Bright Green Studio also provides consulting services to architects and designers. Whatever sustainability means to your client, we work with you at the early design stage to provide effective, measurable solutions which optimise building performance and meet your client’s sustainability goals.

how we work

We work directly with you or with your existing architect or designer. At the early design stage we get an understanding of what ‘home’ means to you, identifying your priorities and goals for the finished project, and helping you realise your vision for your ideal extension, renovation or new build.


Our design process aims to deliver beautiful, high-performing, low impact, future-ready homes.


We also collaborate with other architects and designers to deliver buildings that meet your clients’ sustainability goals.


We are a research-led practice, and use our expertise and knowledge to bring leading-edge thinking to all our work.

01 / Health & Wellbeing

We spend more than 80% of our time inside buildings, so at Bright Green Studio we focus on creating homes that improve physical wellbeing and mental health. This means thermal and visual comfort, healthy materials, plenty of natural light and spaces that work as they should.

02 / Performance

All our designs deliver high-performing buildings which cost less to run. Achieving energy efficiency is a three-step process: the reduction of energy use through design and specification, the use of efficient building services and the inclusion of renewable energy sources.

03 / Comfort

We create beautiful, well-lit spaces which are a joy to use all year round. We use building modelling techniques to understand and optimise the amount of natural light in your new space, ensure thermal comfort (cool in summer, warm in winter) and check how the building will perform under future climates.

04 / Low impact

We help you create a healthy, happy home by specifying natural, renewable, plastic and cement-free materials, to provide good indoor air quality whilst ensuring low environmental impact. We also design to integrate and enhance wildlife and biodiversity.

case studies

Bright Green Studio is a research-led practice. We recognise that sustainability is about so much more than energy efficiency and carbon emissions.

We design homes that fulfil the needs of their occupants, whether those needs are financial or health driven, focussed on family or the environment, or all of those factors together.

We have access to up-to-date knowledge and resources and actively seek to collaborate and share. We are developing four case studies looking at how to address different questions in home design, and will share our findings as we complete them.

Case Study 01


A study in orientation, solar gain, thermal mass, and visual and thermal comfort.

Case Study 02


A study in ecological preservation, flood resistance and recycling.

Case Study 03


A study in ‘zero’ carbon using renewable materials and energy sources.

Case Study 04


A study of Passivhaus levels of energy efficiency, for an adaptable family home.

Staffordshire: A home for two


Thermal mass can help to control diurnal temperature swings. In this case study the solid structure absorbs solar heat gain from large windows during the day and releases it slowly through the night. It is known however that large expanses of glass contribute to excessive heat loss in the winter and to summertime overheating. Through this case study we will explore how the design can be evolved to maintain thermal and visual comfort without reducing aesthetic appeal.

London: Nine dwellings


In this case study, the building and amenity space is raised from the ground, to allow flood water to bypass domestic areas. Ecological preservation is a specific concern here, with the existing site being populated with protected species. Dwellings were designed to separate human and wildlife activity, and provision is made for wildlife habitat. Existing structures are retained and refurbished to provide shading from low evening sun on the western façade.

Oxfordshire: A small ‘zero’ carbon dwelling

‘Zero’ carbon

This dwelling is constructed with charred timber from European Larch trees located on the site. The traditional Japanese process of Shou-Sugi-Ban is adopted to preserve timber. An area of the site is maintained for replanting of saplings to maintain the carbon sequestration cycle. Rainwater collection and recycling is designed in to irrigate vegetation. Energy use is reduced through passive design and good levels of insulation, and solar panels create a ‘virtually off-grid’ dwelling.

Oxfordshire: A lifetime family home

Passivhaus energy

With the disparity between property prices and levels of income, it is estimated that an increasing number of millennials will be unable to afford to purchase their own home. This case study employs Passivhaus principles to create an energy efficient, comfortable family home, with an adaptable interior design to accommodate future generations and extended families. Passivhaus levels of energy demand result in low fuel bills to further facilitate economy.

who we are

Kate and Sat met on the MSc in Sustainable Building: Performance and Design at Oxford Brookes. Bright Green Studio started out as Kate’s dream and became a joint vision one afternoon in May when they escaped Design Studio to enjoy a coffee in the sunny courtyard.

Kate enjoyed a ‘first-career’ of almost 20 years in brand marketing and data analytics before pursuing her passion for sustainability. She has a special interest in embodied and whole-life carbon. The types and quantities of materials required to lower energy use in homes can often be resource intensive. This means that energy use and carbon emissions from processes required to manufacture these materials can be significant. Kate’s research focuses on whole-life impacts of common building materials, ensuring that improving a building’s performance to reduce energy use and operational carbon emissions are not simply offset by increases in embodied carbon ‘cost’.

Sat is a practising architect with two decades of experience and a diverse portfolio of projects. She has a specific interest in the impact of a warming climate on retrofit strategies for existing homes. Current retrofit standards promote improved insulation and airtightness to lower energy use, but these measures can increase summertime overheating. UK summers are predicted to become hotter, which means the problem of overheating will become more common and possibly dangerous to vulnerable occupants. Sat’s research focuses at how passive design strategies can reduce overheating risk while maintaining useful carbon savings and providing thermal comfort in current and future climates.

Bright Green Studio is a limited company registered in England and Wales. Registration number: 11856059. Registered office: 5 Mulberrry Drive, Slough, Berkshire, SL3 7JU.

Sustainability Director

Kate Brown

e: kate@brightgreen.studio
m: 07834551891

Researcher | Low embodied carbon | Low environmental impact | Building performance | Wine lover | Taking Green Steps | MSc Distinction

Architectural Director

Sat Kaur

e: sat@brightgreen.studio
m: 07446441315

Guest tutor | Bio-climatic passive design | Low-environmental impact | Climate resilience | Music lover | Vegetarian | MSc Distinction | Arb no. 068361B