Carlos Lobão

Alexandre Gamelas and Catarina Santos are passionate about traditional Architecture. Before founding their eponymous firm in Porto, Portugal, both went through experiences of working abroad, namely in London, Rome, Stockholm and New York. Their focus is on private residential projects, with a strong emphasis on decoration and interior design.

They are alumni of the University of Porto’s Architecture Faculty. Alexandre is also a graduate of the Attingham Summer School, a famously intensive course on English country houses, their Architecture and Decoration.

Beyond their work in Portugal the office coordinates and collaborates with international teams of consultants, builders, artisans, architects and decorators. In the past years the company has developed projects for private residences in prestige locations such as Greenwich and Southampton in the US and Gstaad in Switzerland as well as collaborating on a 110m superyacht, under construction.

Both partners are founding members of the Portuguese chapter of INTBAU, an international organisation with headquarters in London and sponsored by HRH the Prince of Wales. Alexandre and Catarina are also the mentors and editors of, a fully searchable online platform of images which showcases traditional Portuguese Architecture and objects.

  • a.g.c.s. arquitectos lda.
  • praça filipa de lencastre, 22, sala 51
  • 4050-259 porto, portugal
  • [+351] 222 080 958