A practice in Espinho, since 1997

Architecture, Design, Urban Planning and Engineering

1+1 Arquitectos was founded in 1997, in Espinho, by Alexandre Sousa and Isabel Lopes. More than two decades on, it is still where it began — and still works on the same principle: a project is resolved with rigour, not with style.

Across more than 200 projects, the practice has worked at very different scales and in very different types — from the single-family building to the urban intervention, from the commercial space to the industrial unit. That range is not dispersion: it is what lets us recognise, in a new brief, a problem already solved in another context.

Having architecture and engineering in the same team means design decisions are taken with an awareness of their consequences for construction, from the first sketch, rather than corrected later by someone who was not in the first conversation.

Areas

Four areas, one team

01

Architecture

Design of new build and refurbishment, from preliminary design to site supervision. Covers the residential, commercial, industrial and urban segments.

02

Design

Interior design and bespoke built elements. Developed alongside the architectural design, not layered on top of it.

03

Urban Planning

Intervention at the scale of the territory and of public space. Includes reading the regulatory framework and the constraints of the place.

04

Engineering

Engineering disciplines developed inside the same team that signs the architecture. Technical coordination happens without intermediaries.

Founders

Who founded the practice

Alexandre Sousa

Founder · Architect

Co-founded 1+1 Arquitectos in 1997, with Isabel Lopes. Has followed the development of the practice's projects ever since.

Isabel Lopes

Founder · Architect

Co-founded 1+1 Arquitectos in 1997, with Alexandre Sousa. Has followed the development of the practice's projects ever since.

Team

Who does the work

Alexandre Sousa

Founding Architect

Isabel Lopes

Founding Architect

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Senior Architect

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Interior Architect

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Civil Engineer

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Project Manager

+200

Projects

+25

Years in practice

4

Areas of expertise