A new extension to Sciennes Primary School in Edinburgh has been officially certified as a Passivhaus building, setting a new standard for energy-efficient school design in the city. The project has also been recognised with three prestigious industry awards.

The £3.2 million extension, designed by Holmes Miller, incorporates sustainable materials like cross-laminated timber (CLT) to reduce the building's carbon footprint. The Passivhaus certification ensures that the building maintains a comfortable temperature year-round while minimising energy consumption.

The project was a collaborative effort between the City of Edinburgh Council, architects, engineers, and contractors. Will Rudd, a leading structural engineering practice, played a key role in delivering the innovative structural solution.

The new extension provides state-of-the-art facilities for pupils, replacing outdated temporary classrooms. The project is a testament to the commitment of the City of Edinburgh Council to sustainable and energy-efficient development.

Carolyn Anstruther, Depute Headteacher at Sciennes Primary School, said: "We are thrilled to see that our new Passivhaus extension is officially certified and recognised with these prestigious awards. The new extension, currently housing our primary one pupils, enhances our play-based approach to learning in these warm, comfortable and airy classrooms which allow easy access to the outdoor spaces. This ultra-modern building blends in beautifully with our original Victorian building, creating an environment that supports our commitment to sustainability and environmental friendliness.

"From the beginning of this project our pupils were actively involved and their opinions and suggestions were always considered by the team. The pupils are proud to see their own designs on the glass panels and wall mural, which will serve as a lasting memento of pupil involvement in the project.

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"Our school buildings need to evolve to be fit for the future, and we hope the success of our new extension at Sciennes Primary will inspire similar projects."

Shirley Evatt, Senior Associate at Will Rudd, said: "To achieve Passivhaus certification and to win this prestigious award from the Edinburgh Architect's Association is a real validation of the passion and hard work of the whole project team. Congratulations and thanks should go to everyone involved.

"This wasn't an easy project and we faced some challenges, particularly with the school's location and proximity to surrounding buildings. However, through open and honest dialogue and a real collaborative approach we have achieved this historic milestone.

"The extension to Sciennes Primary School is now officially the first Passivhaus primary school in Edinburgh and we are incredibly proud to have played our part in achieving this and providing sustainable, state-of-the-art learning environments for future generations. We look forward to working with our colleagues across the built environment to deliver more sustainable projects like these."

Clara Garriga, Project Director at Holmes Miller, said: "Sciennes Primary is a testament to what can be achieved through open-minded collaboration and a passion for good architecture with people at its heart. Combining sustainable design with an understanding of the needs of young learners, we worked closely with our partners to push the boundaries and deliver a unique learning facility where pupils can thrive.

"Achieving Passivhaus certification marks a major milestone in our commitment to creating net zero spaces that enrich communities. We hope this project will inspire the design of more inclusive and creative schools in Edinburgh and beyond."

The new Sciennes Primary School extension was strategically positioned in the rear playground, within the footprint of the old temporary units. To maximise dialogue and transparency an action group comprising the Council, school management, parents and the project design team was established to develop the brief and monitor progress. The desire to futureproof the school and achieve high energy performance through Passivhaus principles became a key focus.

From inception, the school pupils and staff were involved and had regular communication with the design team to ensure they were part of the project journey.

Matt Bridgestock, Director at Sussed Sustainability, said: "Passivhaus certification for Sciennes Primary School highlights the rigorous construction quality and collaboration behind the project. This achievement ensures a healthy, comfortable, and inspiring learning environment for children while setting a new standard for energy-efficient schools. It proves that Scotland's construction industry can deliver radically better buildings with the right approach."

The project's success is attributed to the collaborative efforts of the entire team, including:

• Architect: Holmes Miller

• Principal Contractor: Maxi Construction

• Project Management/Quantity Surveyor and Principal

• Designer: Doig & Smith

• M&E Engineer: The Blackwood Partnership / the Council's in-house M&E engineers

• Sustainable Environmental Design Consultant and Passivhaus

• Designer: Sussed Sustainability

• CLT Designer and Specialist Sub-contractor: Constructional Timber Manufacturers Ltd