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We apply our expertise in sustainable design to create delightful and durable buildings that work well both for our clients and for the world around them. We design these projects to be energy efficient and environmentally considerate. By understanding and employing the science behind constructing comfortable and sustainable buildings we help our clients choose between the many options open to them within their own sustainability budget.

What is a Sustainable Building?

  • A building that uses as little energy to run as possible and ideally any energy needed is produced by sustainable means.
  • A building that is built from renewable or recyclable resources and from materials that have not travelled too far or demanded too much energy to create.
  • A building that is constructed to last a long time: a building takes a lot of energy to construct, so it is important to make sure it is both durable and flexible.
  • A building that is the right size: whilst a spacious building is nice to inhabit, too much space demands more energy to build and run.
  • A building that is well located to reduce the use of unsustainable transport options.

In a perfect world we would tick all of these boxes, but with such a complex range of factors, some are more significant than others and affordability and practicality have to be balanced against long term benefits. Doing something is usually better than nothing (provided that it is done well) and assessing the best and most important sustainable measures is very important.

How to Build Sustainably

Design and build delightful and durable buildings that require as little energy as possible to operate, using locally sourced natural and renewable materials wherever practicable.

A building’s fabric and any alterations to it should reduce your reliance on external energy and resources; should improve comfort and quality and reduce running costs. A design needs to take into account the siting and orientation of a building and particularly its windows, the materials it is built from and its affordability. In practice this means lots of insulation, leak free construction, good quality glazing with larger south facing windows (with appropriate shading) and controlled ventilation.

We consistently design buildings to a better standard than current Building Regulations demand, for sound practical and economic reasons, for greater comfort in use and lower lifetime costs. For those clients committed to making big energy savings we can design to more rigorous standards such as Passivhaus.

Why Does It Matter?

We need to preserve our planet’s finite resources and reduce pollution. For most of us, involvement in a building project would represent our biggest single opportunity to contribute to a more sustainable way of life for us all. The bonus is that sustainable buildings are more comfortable, more durable and cheaper to run.

Did you know that UK buildings contribute around 40% of UK’s total carbon footprint? That compares with 23% from transport and around 32% from industry/agriculture. (1). That means that by improving our buildings we can have a significant, positive impact on reducing energy consumption and CO2 production.

  1. UK Green Building Council


How Does It Help Me?

Once built, your sustainable project will deliver a lifetime of energy savings. It will also provide a very comfortable and healthy environment to live in.

Building a sustainable project may cost a bit more initially, but the payback can be quick and the long term savings significant. A sustainable building should be comfortable: an even temperature throughout the year, it should be well ventilated and enjoy plentiful daylight. Draughts, mould, condensation and high energy bills become things of the past.

Will It Cost More?

It is likely that a sustainable building will cost more: thicker insulation, better quality doors and windows, more attention to detail during the build and certification if required. The extra cost is coming down though, as builders become more accustomed to the new methods and technologies. As minimum environmental standards required by Building Regulations increase, the difference between a Building Regulations standard building and a good low-energy sustainable build is reducing. Actual figures are still hotly debated and depend on many factors including the building type, size and location.

Additional construction costs should be balanced against the savings during the lifetime of the building, for example a modest Passivhous home may consume a tenth of the energy of a conventional build, it gives owners financial savings and energy security in times of increasing fuel costs. Other benefits should be considered too such as increased comfort, with healthy and quiet interiors.

extension to cottage open plan space
extension to cottage open plan space
extension to cottage open plan space
extension to cottage open plan space

Hetreed Ross Architects are RIBA Chartered Architects and Environmental Designers, for Bath, Bristol, Somerset, Wiltshire, Gloucestershire, Dorset and the South West. AECB, EASA and Green Register members. Registered office: Hetreed Ross Architects, Attika Workspace, Bath Brewery, Toll Bridge Road, Bath, BA1 7DE.

© Hetreed Ross Architects 2021

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