The Hen House, Sheffield

The Hen House project is an award-winning energy efficient newbuild house, built into a steeply sloping Sheffield garden site, designed by Paul Testa Architects and built by Simplicity Construction for selfbuilder clients Jo and Gail.  The house has been designed to be extremely warm and comfortable to live in whilst using very little energy compared to a typical new-build house.

21°supplied the triple glazed windows & doors and MVHR system for the project.

Design

The house was built using Passivhaus principles, and was designed using PHPP, with a total space heating need of 36 kWh/m² per year and a construction cost of £1975/m²

The two storey dwelling was carefully fitted into its difficult plot whilst maximising the views to the West, avoiding numerous mature trees or overlooking other  properties.

The home is accessed on the upper level, which offers a spacious, light filled kitchen, living and dining space, made from a highly insulated timber-frame superstructure provided by Frame Technologies.  The long room is divided by a full-height plywood bookshelf which maintains views through to the large balcony overhanging the slope at the far end. This upper level is clad in timber shingles which will soften with age and blend the house into its wooded surroundings. The lower floor houses the bedrooms and support spaces in a solid, masonry plinth.

Triple glazed timber windows & doors

21°’s triple glazed timber windows and doors were chosen for the project. The window and door specification for the site included a large gable end with French doors and triangular fanlights, as well as long narrow windows positioned to fit in with ‘overlooking’ issues and also to take advantage of the views of wooded overgrowth

Products supplied from the GBS78 range included: Tilt and turn windows, two Lift and slide doors, an entrance door and sidelights and a large triangular fixed panel. The windows and doors were finished with a clear stain inside, and opaque paint finish (RAL 7037) outside.

MVHR mechanical ventilation with heat recovery

21° designed, supplied and commissioned the MVHR (mechanical ventilation with heat recovery) system, which included a PAUL Novus 300 MVHR unit and a rigid spiral wound steel ducting system, which was incorporated into the contemporary design of the project, rather than concealed.