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  • Português

Buildings that really work.

We support architects, developers and industry professionals in the creation of Passivhaus and high-performance buildings - from the initial idea to final certification.

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ZEPASSIV

Your trusted partner in
design and Passivhaus certification

At Zepassiv, we bring together more than a decade of experience in sustainable architecture, building physics and Passivhaus consultancy.

We work with architects, engineers and developers to design projects that combine efficiency, comfort and environmental responsibility.

Key points:

  • Certified Passivhaus consultants and designers

  • Experience in new construction and refurbishment

  • Advice in three languages: Spanish, English and Portuguese

  • Comprehensive support, from concept to certification

Services

Energy and Passivhaus
consultancy services

From the design phase through to final handover, Zepassiv offers solutions tailored to every type of projectto meet the highest standards of efficiency and comfort.

ZEPASSIV

Experience, collaboration and proven results

We combine technical expertise with a
collaborative approach to ensure excellence in every project.

  • Non-domestic buildings

    We have experience in non-residential buildings, including educational facilities, sports facilities, offices and museums.

  • Active collaboration

    We work with developers, builders and public bodies to balance performance, cost and design.

  • Sustainable commitment

    Every project contributes to a more efficient, decarbonised future.

  • Recognised quality

    We collaborate with leading public institutions, developers and architectural practices in the UK, Spain and Portugal.

Portfolio

Some of our
recent projects

Find out how Zepassiv supports professionals in
developing sustainable, Passivhaus-certified projects.

Accredited Passivhaus training to transform the industry.

As certified consultants and trainers, we believe that training is key to driving real change. Our programmes help professionals to successfully apply Passivhaus principles to their projects.

Discover our training

Testimonials

What our clients
say about us

  • I am an architect specialising in Passivhaus projects and have certified almost ten projects nationwide, all of them Zero Energy. As a certifier, Jesús and his team are methodical and excellent at reviewing calculations, suggesting comments and gathering documentation through their online portal. They offer an audit with full guarantees for the client. Highly recommended.

    Pablo Benito

    Passivhaus certification

  • They renovated my house. They oversaw the entire project and conducted the feasibility study. We're delighted with the result, especially now that it barely uses any energy.

    Amelia Yagüez

    Consultancy

  • It was a pleasure to have Jesús as the certifier of our Passive House Plus home. Thanks to his review of the project and his comments, our heating demand is really low, almost impossible for a house of this type.

    Tomas Velasco

    Passivhaus certification

Certifications

Certifications
& partnerships