An abandoned commercial space in a lively Lisbon neighborhood, Campo de Ourique, was transformed into a compact flat with a small backyard. A red metal grid was added to the existing storefront, creating a protective yet porous threshold that mediates between the street and the interior. Just behind it, a wall of glass blocks allows natural light to get in while preserving privacy — softening the transition from public to domestic space. It’s not uncommon to find the client sitting just inside the open door, reading a book or enjoying a coffee — a quiet moment held between the rhythms of the home and the city.