波特马多格住宅丨英国威尔士丨Strom Architects

Porthmadog House sits on a steep coastal site in Wales, United Kingdom, where Strom Architects shapes a new private house around exposure, shelter, and carefully directed views. Designed in 2024, the project uses a layered composition of Welsh slate and corten steel to settle into the slope while opening selected rooms toward the bay, estuary, and the mountains of Snowdonia.

About Porthmadog House

Porthmadog House replaces an existing private residence on a steeply sloping coastal site in rural North West Wales. The setting is demanding as well as expansive, exposed to Atlantic weather systems and strong prevailing winds while looking across the bay to the Irish Sea and inland toward the estuary and the mountains of Snowdonia. Strom Architects answers those conditions with a house that does not treat openness as a given. Instead, it works through a steady negotiation between outlook and protection.

That balance shapes the project from the ground up. The house is conceived as a series of layered volumes, each taking on a clear role in relation to the site. Some parts press into the land and create shelter; others reach outward and frame the wider landscape. The result is not a single gesture but a composed arrangement of heavy and light elements, each sharpening the reading of the other.

At ground level, two Welsh slate-clad volumes are embedded into the slope. These elements form a robust base that anchors the house physically and visually, giving the lower part of the building a sense of weight and refuge suited to the coastal climate. Rather than simply occupying the site, the slate volumes appear to hold the building in place, reinforcing the relationship between the house and the hillside.

Above them, a lighter corten steel volume spans across this slate base. Its position introduces a different condition: less buried, more extended, and more directly engaged with the surrounding views. In formal terms, the contrast is straightforward but effective. The slate reads as grounded and protective, while the corten volume brings lift and reach. Together they establish a clear architectural hierarchy that organizes the whole house.

This contrast also shapes the way the project is experienced. Porthmadog House moves between protected spaces and open ones, allowing retreat and privacy in some areas while turning other rooms toward light, weather, and the landscape. The glazing is carefully positioned to frame distinct moments rather than offer an unbroken sweep. That choice gives the house a more controlled and inhabitable relationship with its setting, emphasizing specific views across the bay, inland to the estuary, and toward Snowdonia.

Materials are central to that reading of place. Locally sourced Welsh slate and corten steel refer directly to the region’s geological and industrial history, but their use here is practical as well as associative. Both are durable materials with the capacity to weather naturally, making them well suited to an exposed coastal environment. Built by local trades, the house is tied to its setting not only through form and material but through the people and methods involved in making it.

What stays with the project is its clarity. Porthmadog House does not try to dissolve into the landscape or dominate it. It settles into the slope, takes the weather seriously, and uses structure, material, and opening to make a measured coastal dwelling.