Studio JCS Arch+

We are an architecture practice that gives shape to a contemporary world through the design of buildings spaces, objects, urban and landscape environments. 

We work creatively from the start of a project in a combination of knowledges to deliver full scope of integrated and sustainable design solutions, shaping future.



João Carmo Simões
Founder and Director, MArch OA


João grew up in Cascais. After completing his master’s degree in architecture at Da/UAL Lisbon, he was a recipient of the National Secil Universities Award 2010. Believing that the quality of the environment that surrounds us directly affects the quality of our lives, and driven by his passion for innovation and excellence, in 2012, he founded his own studio in Lisbon. Among his designs are Villas, Apartments, renovations in historic and modern buildings, School Complexes and interventions in heritage. His works were highlighted in the Monocle and Observador Lifestyle magazines and in the books Portugal: The Monocle Handbook and Portuguese Modern Apartments. He is regularly guest lecturer in several universities. He was Assistant Professor at Estúdio Vertical #2 “Stones Are Alive”, coordinated by João Luís Carrilho da Graça, at Universidade Autónoma de Lisboa (2020).

He is co-founder of the publisher Monade books with a global reach, promoting excellence in architecture thinking and research. His publications include editions on Pritzkers prizes like Álvaro Siza or Paulo Mendes da Rocha. He is author of the book Civitas São Paulo, distinguished for shortlist of the DAM - Deutsches ArchitekturMuseum Architectural Book Award for best architecture book of 2019. He was a member of the Portuguese Council of Architects, the Board of General Assembly (2019-2023) and the National Admissions Council (2014-2016).His work was recently nominated for the EUmies Award 2024 European Union Prize for Architecture. João is a keen skipper, enjoys sailing and photography.


Core Team

João Carmo Simões
Founder and Lead Architect, Architect MArch OA


Daniela Sá, Partner, Architect PhD Arch

Maria Prates, Architect MArch

Joana Orêncio, Architect MArch
Marie Tassan-Din, Trainee, Ch

Pierre-Loup Zehnder, Trainee, Ch


External Consultants Team

João Gomes da Silva, Landscape Architect 
Global - Arquitectura Paisagista

António Adão da Fonseca, Structural and Bridge Engineer 
Adão da Fonseca - Engenheiros Consultores

Raul Bessa, Mechanical and HVAC Engineer
GET - Gestão de Energia Térmica

Rui Ribeiro, Acoustical Engineer
Amplitude Acoustics

Marta Azevedo, Hydraulic Engineer

Campo d' água


Previous Collaborators

Marta Tornelli, Architect MArch

Madalena Roque, Trainee

Vega Solaz Soler, Architect MArch 

Marta Onofre, Architect March 

Olaya Mourenza Flórez, Architect March








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European Union Prize for Contemporary Architecture
The Mies van der Rohe Award 2024


DAM Architectural Book Award (2019)
Deutsches Architekturmuseum, nomination for the best book of the year
National Architecture Prize Secil Universities (2010)

Publications on Our Work

Portugal: The Monocle Handbook 

Book — About Casa Azul / Thames & Hudson, 2023


Monocle 154

Magazine — About Casa Azul / London, 2022


Revista Património

Magazine — About Janela para o Céu / Lisboa, 2019


Portuguese Modern Apartments

Book — About Lima Apartment / Uzina, Lisbon, 2015




The Order of Landscape / João Gomes da Silva

Book — Edition and Photography / Monade Books, Lisboa, 2023


FEP Viana de Lima /  João Carmo Simões

Livro — Author and photography / Monade Books, Lisboa, 2023


Imagining the Evident / Álvaro Siza
Book — Editor and Graphic designer / Monade Books, Lisbon, 2021
Book — Editor / Monade Books, Lisbon, 2019
Design Future Paulo Mendes da Rocha
Book — Editor / Monade Books, Lisbon, 2018


Civitas São Paulo João Carmo Simões

Book — Author and photographer / Monade Books, Lisbon, 2018


Folha de São Paulo

Newspaper — about 50th anniversary of MASP - Museum of Art São Paulo, 2018


Álvaro Siza / Museu Nadir Afonso

Book — Author and Editor / Monade Books, Lisbon, 2016

Lectures and Talks

The Order of Landscape

with João Gomes da Silva, Aurora Carapinha, Daniela Sá, João Carmo Simões, João Luís Carrilho da Graça, João Pinharanda, Sérgio Mah
Talk at Maat, Lisboa, 2023


Stones are alive directed by João Luís Carrilho da Graça
Workshop team Coordinator at Da_UAL Universidade Autónoma de Lisboa, 2019
50 Years of Gulbenkian Building
with Gonçalo Byrne, José Neves, André Cepeda
Talk at Calouste Gulbenkian Foundation, 2019
Tribute to Prof. Manuel Graça Dias
Talk at Da_UAL, Universidade Autónoma de Lisboa, 2019
Futuro Desenhado Paulo Mendes da Rocha Book Launch
with Guilherme Wisnik, Daniela Sá 
Talk at Lisbon Architecture Triennale, 2019
Civitas São Paulo
Open Classroom X Ar.Co – Arts and Visual Communication Center, 2019

CIVITAS / São Paulo

with Inês Lobo, Ana Vaz Milheiro, Daniela Sá

Talk at Kaffeehaus, Chiado, Lisbon, 2018


CIVITAS / São Paulo

with Paulo Mendes da Rocha, Guilherme Wisnik, Daniela Sá
Talk at ITAÚ Cultural, São Paulo, 2018

Inauguration of the project Janela para o Céu

with José Tolentino Mendonça, Luísa Soares de Oliveira

Talk at Capela do Rato, 2018


POROSIS / The Architecture of Nuno Brandão Costa

with Mark Lee, Sharon Johnston and Nuno Brandão Costa

Talk at Chicago Architecture Biennial, 2017

Álvaro Siza / Museu Nadir Afonso

with Guilherme Wisnik, Daniela Sá

Talk at Livraria Cultura, São Paulo, 2017

Paulo Mendes da Rocha / Museu Nacional dos Coches

with Paulo Mendes da Rocha, Fernando Viegas, Daniela Sá

Talk at Escola de Cidade, São Paulo, 2017


Relação – Conferência Pontapé

Lecture at Faculdade de Arquitetura da Universidade do Porto (FAUP), 2016


Viagem: Processos de Construção do Olhar

Lecture at Faculdade de Arquitetura da Universidade do Porto (FAUP), 2014


Prática versus Ensino

Lecture at Da/UAL Universidade Autónoma de Lisboa, 2013