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Architecture · Interiors · Identity

Space, crafted
for
living.

We design spaces that endure. Stratum partners with forward-thinking clients to create architecture and interiors that are timeless, purposeful, and deeply personal.

24+ Years of practice
180 Projects completed
12 Countries
Selected Work

Projects that
define spaces.

From private residences to civic landmarks, each project begins with a single question: how should this space feel?

All projects
#01

Residence No. 14

Porto, Portugal · 2024
Residential
#02

Meridian Cultural Centre

Lisbon, Portugal · 2023
Cultural
#03

Oak Tower

London, UK · 2023
Commercial
#04

Casa Blava

Barcelona, Spain · 2022
Residential
The Studio

Built on the
belief that
place matters.

"Good architecture doesn't announce itself. It simply makes you feel, without knowing why, that you are exactly where you should be." — Clara Voss, Founding Partner

Founded in 2000 and headquartered in Porto, Stratum has grown from a two-person practice into an internationally recognised studio with offices in Lisbon and London. We believe that the built environment shapes how people think, feel, and relate to one another — and we take that responsibility seriously.

3 Offices
48 People
7 Awards in 2023
Services

What we
bring to
every brief.

  • Architecture

    From concept to completion — new builds, extensions, and masterplans that respond to site, climate, and culture.

  • Interior Design

    Layered, considered interiors that move between material richness and spatial clarity. Every room tells a story.

  • Urban Planning

    Mixed-use neighbourhoods, public realm strategies, and high-density living — designed for people at every scale.

  • Hospitality

    Hotels, resorts, and restaurants built around the art of arrival — where first impressions become lasting ones.

  • Cultural

    Museums, galleries, and civic buildings that honour their communities and endure across generations.

  • Landscape

    Outdoor spaces as a natural extension of the interior — terraces, gardens, and public squares that breathe.

Our Process

How we work
— from first word
to final key.

  1. Brief

    Listen first.

    Every project begins with deep listening. We immerse ourselves in your life, your aspirations, and the story of the site before a single line is drawn.

  2. Concept

    Define the idea.

    A single governing idea — spatial, material, experiential — becomes the compass for every decision that follows. Clarity of concept is everything.

  3. Design

    Develop and detail.

    From massing to materiality, we resolve every element with the same rigour. Technical excellence is not separate from beauty — it is its foundation.

  4. Build

    Craft on site.

    We remain closely involved throughout construction, working with master craftspeople to ensure the built work matches the precision of the design.

  5. Live

    Space as lived.

    Architecture only becomes real when it's inhabited. We revisit completed projects, listening to how space performs over time — and learning from it.

Get in touch

Let's begin
a conversation.

We take on a limited number of commissions each year, ensuring every project receives our full attention. Tell us about what you're imagining.

Porto Rua de Santa Catarina 412
4000-442 Porto
Lisbon Av. da Liberdade 88, 3°
1250-096 Lisboa
London 14 Clerkenwell Green
EC1R 0DP London