Country House | 2019-2024

Location: Sdier, Germany
Architects: architekt Lißner
Client: Private
Photographers: Johanna Lißner

Northstar Medical Campus is a 24,000 square-feet medical office development located in North Richland Hills, Texas. The three-acre campus comprises of three single-story medical office buildings arranged around a public plaza, as well as landscaped grounds around the buildings. ‘Building 2’ was completed in January 2022. ‘Building 1’ and ‘Building 3’, are scheduled to be completed by 2023.

The primary building on the site, Building 2, “Northstar Dermatology,” is a 9,000 square-feet office building that was completed in January 2022. The plan divides the office into two halves with the clinical zone on either sides, connected by the staff areas in the middle. The concentric arrangement of the clinical zones register the administrative hierarchy by defining the circulation patterns and a system of visual communication and surveillance between doctors, nurses and patients: the doctors’ offices at the very center overlooking the nurse stations, and the nurse stations facing the patient examination rooms on the peripheries.

The floor plan was developed through a series of agent-based computer simulations (using Pedestrian Dynamics and AnyLogic software) in order to synchronize the circulation with the schedule and pattern of activities, maximize efficiency and minimize unwanted obstructions or interactions.

The interior finishes and flooring mark and distinguish the public (patients) spaces from the private (staff) areas, at times exposing the mismatch between the original diagram and the final layout. The project’s commitment to sustainability is underscored by its innovative use of agent-based computer simulations to optimize circulation efficiency within the buildings. This approach significantly reduces energy consumption and environmental impact by streamlining movement patterns, thereby minimizing the need for extensive heating, cooling, and lighting in less frequented areas, and contributing to the overall ecological efficiency of the building.

The building project takes us to eastern Saxony, just near the UNESCO biosphere reserve of the Upper Lusatian Heath and Pond Landscape. In a village of 300 people, surrounded by coniferous and mixed woodland, agricultural land and countless ponds.

The building site is located on the southern edge of the village, directly on the ditch of an abandoned railroad line. The former railroad area is overgrown and has since been declared a formal forest area.

A wooden pedestrian bridge over the ditch leads into the forest to the south. The so called Spree cycle path from the sources of the Spree in the Lusatian Highlands to Berlin leads over this wooden bridge and directly past the house.

The house nestles parallel to the railroad ditch and is as narrow and long as possible out of consideration for the open space of the neighboring buildings. It opens to the west with a covered forecourt, thus clearly defining the entrance to the house.

After an entrance area, you enter the central, almost 80 m² living area with cooking, dining, living and working areas. The focal point here is the panoramic wood-burning stove. The central room is generously glazed to the south and north towards the respective terraces.

Further east is the guest area and the personal retreat zone with bathroom, dressing room and bedroom. Finally, a covered path in the wooded garden leads to the sauna.

The building is single-storey and designed as a classic solid construction. With insulated reinforced concrete floor slab against the ground, exterior walls made of sand-lime brickwork, on the one hand plastered or clinkered with a mineral thermal insulation composite system, on the other with an insulated facing shell made of larch wood. A reinforced concrete slab forms the flat roof with extensive greenery. To the south, a covered terrace area is attached in pure timber construction, which also provides shade in summer as thermal insulation.

Energy is supplied by an air heat pump, a photovoltaic system on the flat roof and the mentioned solid fuel stove. Any additional energy required is drawn from the public power grid. A ventilation system with heat recovery rounds off the energy concept and ensures a balanced and pleasant living climate. The final energy requirement is in the range of an efficiency house 40.