task:
New construction of a residential building with integrated daycare centre in the Kleineschholz neighbourhood
client:
Freiburger Stadtbau GmbH
procedure type:
Multiple commission 2024, 1st prize
size:
3.600 qm
technical planner wbw:
Hagen Ingenieurgesellschaft für Brandschutz (fire protection) | club L94 (landscape architects) | TRAGRAUM Ingenieure (structural engineering) |
team:
Rosanna Just-Calisir, Isabelle Pertack
visualizations:
luxfeld digital art, Darmstadt
In its functional stacking, the new building forms the significant identity-creating prelude to the Kleineschholz neighbourhood.
Above a two-storey base with a day-care centre, residential storeys are added. Both functions will have a green balcony structure as a future face for the social and neighbourhood diversity in the district.
The 5-group daycare centre is accessed from Wohnweg Süd. The central entrance to the daycare centre will have a spacious staircase with seating and play platforms to the first floor. The horizontal division differentiates between U3 group rooms with direct access to the open spaces to the south and the Ü3 groups on the upper floor with external connecting and escape balconies to the outdoor area. The multi-purpose room on the eastern side of the building will have its own entrance and can be used synergistically for neighbourhood use outside of daycare centre opening hours. On the western flank, the kitchen area for the neighbouring children’s bistro will have delivery access from Wohnstraße Süd. The bistro can also be used externally via an additional entrance.
The residential use in the neighbourhood shelf is accessed via an arcade from Wohnweg Süd. The two stairwells are located in the corners of the building and provide the first and second escape routes for all flats. The pergola has terrace-like widenings that can be used by the residents as a neighbourhood meeting point. To the south, the balcony structure planted with climbing plants extends the individual exit from each flat into the open air. The flanks of the balconies have attached plant troughs for individual greenery. In addition, the roof area is activated with a communal herb garden under a photovoltaic (PV) pergola. The other roof areas will be extensively greened and covered with PV.
The basement houses the technical and storage rooms as well as the bicycle parking spaces, which are accessed via a generous 15° ramp from the residential path to the south. For the daycare centre, there is a spacious area with bicycle and cargo bike parking spaces in the immediate vicinity of the entrance.
The daycare centre will have a climate-friendly outdoor space to the south with a reduction in sealed surfaces and maximisation of the green area by planting shade-giving climate trees.
To the south, the outdoor area will be bordered by a green fringe of loosely arranged climatic trees, shrubs and grasses.
Together with green roofs, the roof water is designed to seep away in order to drain rainwater naturally, permanently and cost-effectively.
From the 2nd floor upwards, the building is designed as a solid timber construction with solid timber ceilings resting on the solid timber bulkheads. The bulkhead structure offers great potential for realisation with completely prefabricated wall panels. Due to the larger spans and the increased sound insulation requirements, the ground floor and the first floor are constructed in reinforced concrete with flat ceilings and load-bearing corridor walls and façade axes. The pergolas are prefabricated reinforced concrete structures that offer the required robustness and fire resistance without additional economic expense. The balcony elements are also designed as prefabricated steel structures with thermally separated support brackets on the ceiling slabs. The prefabricated façade elements of the residential storeys are clad with rear-ventilated timber panelling. The solid construction of the day-care centre will have a clinker brick façade that matches the colour of the upper floors.
The foundation is made with elastically bedded floor slabs on a base course.
The energy and building technology concept is based on the use of renewable energy in conjunction with the intelligent generation, networking, utilisation and storage of heat and electricity. The concept is based on the utilisation of the local heating network with useful heat for heating and hot water, which is planned to be provided by the utility company in the future. A PV system on the roof can initially be used directly in the residential complex. The electricity generated can be used to operate the heat distribution (pumps, etc.), as well as for other general electricity requirements.
Ventilation is provided by domestic ventilation systems, i.e. central fans in the bathroom (humidity sensor-controlled from the living room) and supply air flow via the façades. Ventilation for the daycare centre is provided by a central ventilation system, which is integrated in the roof pergola area. As a result, the technical systems and networks for heating and ventilation remain simple, inexpensive and low-maintenance. A KfW 55 standard can be achieved with standard insulation thicknesses thanks to the compact timber construction in combination with the use of local heating.
In its functional stacking, the new building forms the significant identity-creating prelude to the Kleineschholz neighbourhood.
Above a two-storey base with a day-care centre, residential storeys are added. Both functions will have a green balcony structure as a future face for the social and neighbourhood diversity in the district.
The 5-group daycare centre is accessed from Wohnweg Süd. The central entrance to the daycare centre will have a spacious staircase with seating and play platforms to the first floor. The horizontal division differentiates between U3 group rooms with direct access to the open spaces to the south and the Ü3 groups on the upper floor with external connecting and escape balconies to the outdoor area. The multi-purpose room on the eastern side of the building will have its own entrance and can be used synergistically for neighbourhood use outside of daycare centre opening hours. On the western flank, the kitchen area for the neighbouring children’s bistro will have delivery access from Wohnstraße Süd. The bistro can also be used externally via an additional entrance.
The residential use in the neighbourhood shelf is accessed via an arcade from Wohnweg Süd. The two stairwells are located in the corners of the building and provide the first and second escape routes for all flats. The pergola has terrace-like widenings that can be used by the residents as a neighbourhood meeting point. To the south, the balcony structure planted with climbing plants extends the individual exit from each flat into the open air. The flanks of the balconies have attached plant troughs for individual greenery. In addition, the roof area is activated with a communal herb garden under a photovoltaic (PV) pergola. The other roof areas will be extensively greened and covered with PV.
The basement houses the technical and storage rooms as well as the bicycle parking spaces, which are accessed via a generous 15° ramp from the residential path to the south. For the daycare centre, there is a spacious area with bicycle and cargo bike parking spaces in the immediate vicinity of the entrance.
The daycare centre will have a climate-friendly outdoor space to the south with a reduction in sealed surfaces and maximisation of the green area by planting shade-giving climate trees.
To the south, the outdoor area will be bordered by a green fringe of loosely arranged climatic trees, shrubs and grasses.
Together with green roofs, the roof water is designed to seep away in order to drain rainwater naturally, permanently and cost-effectively.
From the 2nd floor upwards, the building is designed as a solid timber construction with solid timber ceilings resting on the solid timber bulkheads. The bulkhead structure offers great potential for realisation with completely prefabricated wall panels. Due to the larger spans and the increased sound insulation requirements, the ground floor and the first floor are constructed in reinforced concrete with flat ceilings and load-bearing corridor walls and façade axes. The pergolas are prefabricated reinforced concrete structures that offer the required robustness and fire resistance without additional economic expense. The balcony elements are also designed as prefabricated steel structures with thermally separated support brackets on the ceiling slabs. The prefabricated façade elements of the residential storeys are clad with rear-ventilated timber panelling. The solid construction of the day-care centre will have a clinker brick façade that matches the colour of the upper floors.
The foundation is made with elastically bedded floor slabs on a base course.
The energy and building technology concept is based on the use of renewable energy in conjunction with the intelligent generation, networking, utilisation and storage of heat and electricity. The concept is based on the utilisation of the local heating network with useful heat for heating and hot water, which is planned to be provided by the utility company in the future. A PV system on the roof can initially be used directly in the residential complex. The electricity generated can be used to operate the heat distribution (pumps, etc.), as well as for other general electricity requirements.
Ventilation is provided by domestic ventilation systems, i.e. central fans in the bathroom (humidity sensor-controlled from the living room) and supply air flow via the façades. Ventilation for the daycare centre is provided by a central ventilation system, which is integrated in the roof pergola area. As a result, the technical systems and networks for heating and ventilation remain simple, inexpensive and low-maintenance. A KfW 55 standard can be achieved with standard insulation thicknesses thanks to the compact timber construction in combination with the use of local heating.
