Martin Gruenanger, Invisible House | Light Roof Competition in partnership with RIBA Journal 

Keylite Roof Windows has partnered with RIBA Journal to challenge architects to design remarkable projects, shaped by daylight.
The competition tasked entrants to design a generous family home for a compact site that was enclosed on all sides, so that the only access to daylight is from the sky directly above.
Invisible House by Martin Gruenanger was commended in the competition with the range of materials and unique solutions impressing the judges.
Martin Gruenanger’s Invisible House is an extension to a previous project by Space Group Architects. It doubles the floor area and adds a bedroom, living room, storage space and gym.
Daylight and natural ventilation are provided through a sunken courtyard, carefully positioned walk-on skylights (the roof of the extension is at ground level, abutting the main house) and an abstract ventilation shaft. The interior is finished in fair-faced concrete, lightened by polished stainless-steel fixtures and fittings, which reflect and deflect the natural light.
Added to this is a series of reflective sculptural elements, including an amorphous, mirrored ceiling feature, a ‘metal waterfall’ beneath a skylight and other integrated sculptures.
Find out more about the competition: www.keyliteroo...