1517. A haven for warships and merchant vessels. A place of refuge, a shelter for frigates. Soon, the port of Le Havre and its city became mutually dependent. As a strategic location, the city was devastated at the end of the First World War. From its ashes, architect Auguste Perret would rebuild a modern city center, using prefabrication, a systematic modular grid, and the methodical exploitation of concrete potential. Today, the city thrives thanks to its port, which continues to expand, reclaiming land from the English Channel. The colossal Port 2000 project provides deeper waters, no longer subject to the rhythm of the tides. The old port and its industrial complex have been abandoned; the dismantling of the grain silos was completed in 2021. However, as factories disappear, the demographic growth driven by the city’s port activity calls for solutions. Seemingly rising from the water, near the quays that line the ruins of the former Brise Vent of Le Havre, a structure grows and shrinks in response to the needs of its inhabitants. Its primary framework follows a Tartan grid of prefabricated concrete posts and beams, within which construction elements are assembled. Each dwelling is independent, sharing only a vertical core from which water and electricity converge. On the ground floor, as the tide goes out paths appear, allowing access to the structural spine that serves each home. Central circulation runs the length of the building allowing access to the dwellings on either side via walkways. A metallic mesh organizes this circulation space, clad in climbing vegetation that unfolds to form a green mantle, acting as a natural filter. The voids left by the concrete frame are conceived both as opportunities to expand the dwellings and as shared spaces between connected units, evolving according to needs. Meanwhile, specific glazing is installed - opaque from the outside, transparent from the inside. From these glass volumes emerges a profound sense of intimacy and connection with life unfolding outside. The sound of the waves, the rhythm of the tides, and the movement of the clouds all contribute to an intense awareness of the world, suspended between land and sea.