Architecture and sustainability at the service of Portugal
Tema is an architecture and energy certification office based in Oeiras, Portugal, led by architect Lilian Nagato. We combine technical expertise with a sustainable vision to create spaces that respect the environment and improve quality of life.

Lilian Nagato
Architect, Qualified ADENE Expert
With over 20 years of experience in sustainable architecture and energy certification, Lilian Nagato leads Tema Architecture with a passion for creating spaces that harmonise aesthetics, functionality and energy efficiency. Specialising in residential and commercial projects, she combines technical expertise with creative vision to turn ideas into reality.
Principles that guide our work
Sustainability
Commitment to responsible environmental practices.
Quality
Excellence in every project we develop.
Innovation
Modern solutions for contemporary challenges.
Commitment
Total dedication to each client, accompanying each project from start to finish with attention to detail.
Our Philosophy
"We believe that architecture has the power to transform not only spaces, but also the way we live and relate to our environment."
At Tema, each project is an opportunity to create spaces that promote well-being, respect nature and contribute to a more sustainable future. We work side by side with our clients to transform their visions into reality, always with an attentive eye to efficiency and economy.
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