A Prototype of a Family House built in a former granite quarry in Posázaví, Czech Republic by a69 Architekti

A Prototype of a Family House built in a former granite quarry in Posázaví, Czech Republic by a69 Architekti

Architects: a69 Architekti
Location: Posázaví, Czech Republic
Year: 2015
Area: 2.530 ft²/ 235 m²
Photo courtesy: Tomáš Rasl

“A prototype of a family house is built in a former granite quarry in Posázaví. The purpose of this built project is to check structural, typological, and user qualities of the prototype.


The house is located on the edge of a rock above a lake. The project preserves grown trees, emphasizes the view to the water, and allows access to the meadow in the middle of a forest.


A simple cubic mass 15x15x4 m contains interior spaces formed in a more complex manner. Organically moulded labyrinth of the interior habitable space allows more day- and sunlight, vistas out and through from the depth of the layout.


The house hovers over the landscape, it is not founded traditionally. A steel load-distributing modular raft is bedded on existing granite blocks – remnants of former mining. A 2×4 timber frame is erected on the raft. The roof structure is nailed trusswork. The roof is flat finished with extensive green. The façade is ventilated made of lumber. Windows are aluminium.


A sliding glass wall provides for connecting the living area with an outdoor terrace on the meadow. The interior is monochromatic using different shades of white – a neutral frame for colours of the forest at different periods of a day and year.”

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