- Planning and Design
Planning and Design Process
Ty-Hedfan, meaning ‘hovering house’ takes full advantage of the river side location. The house is a further exploration of Featherstone Young’s interest in highly site specific and contextual architecture, using local materials such as slate and stone and, by fully utilizing the topography of the site, creating a striking and unique form.
The site had two principal constraints, or opportunities – the steeply sloping topography and the no build zone which included all land within 7m of the river. Taking its cue from the traditional Welsh longhouse form, one wing of the building starts in a seemingly straightforward manner but then proceeds to cantilever over the river bank and into the trees, becoming lighter and more open as it does so. The other wing of the building is sunk into the slope of the site, with a green roof over, and full height glazing looking out over a decked riverside lawn. Irregular shaped roof-lights over this wing, drop extra light into the area and are detailed as wooden cattle troughs in a field.
The material palette takes its cue from the local vernacular context, but they are eventually detailed in a more unusual manner. The cantilevered wing is a crisp slate-clad box with hidden guttering and faceted pitched roof which gradually transforms into a hardwood framed glass living room, hung over the river. Two screen walls in local dry stone, soften the hard geometric slate form, but become monolithic 9m high features from the riverside, having the practical benefit of preventing overlooking from higher neighbouring properties. Internally, cedar-clad walls and timber, slate and linoleum floors predominate.
Apart from the creation of a small riverside lawn area, the landscape design around the house aims to be as light touch as possible creating the appearance from the river of a house lost amongst its natural, wild setting. A smaller stream runs across the site and has been encouraged to form pools and wetland areas before tumbling over rocks down the steep river bank and into the main river.
The main wing construction is a hybrid timber and steel frame structure, clad with traditional slate and locally sourced stone.
Large timber framed windows on the south and southwest elevations maximise the thermal benefits from solar gain, which is then retained through high levels of insulation.
Insulated thermal mass is added through the two large stone walls wrapping the main house and forming the entrance hall and interface with the lower guest wing. The guest wing’s concrete retaining walls and green sedum roof add further thermal mass.
Solar panels and an air source heat pump ensure the house is energy efficient.
- Design and Construction Information
Client: Sarah Featherstone & Jeremy Young
Architect: Featherstone Young
Date of Completion: August 2010
Contract value: £530,000
Site Area: 2,500m2