Extension to Montessori elementary school
Mataréstraße

• Canteen for 280 meals
• Dining room as multi-purpose room
• 2 OGS group rooms, team room, meeting room, management office, ancillary rooms
• Net room area ground floor + upper floor: 687 m² (400 m² ground floor + 287 m² upper floor)
• Gross volume ground floor + upper floor: 3,590 m³
• Start of implementation: 1st quarter 2026
• Expected completion date: December 2027
• Timber construction
  
• District heating and PV system
• Extendable
• Roof greening and façade trees
• Architects after successful tender: Herkrath und Herkrath Architekten

The building is to be constructed in timber for reasons of sustainability. Emphasis is placed on renewable and reusable materials.

The wood will be visible in the façade as well as in the ceiling beams, partly in the interior walls and also in the suspended ceiling in the dining room. The floors in the common rooms will be made of linoleum. The group rooms will have light-colored acoustic ceilings. The overall aim is to create a bright, natural and friendly atmosphere.

The entire roof of the building will be covered with a PV system in order to contribute to climate neutrality. To generate heat, the new building will be connected to the school's existing heating system in an interim phase. In the future, the entire school building will be connected to the planned district heating system.

With the exception of the dining room, the glazing is fitted with external blinds as sun protection. As the dining room will have many French windows, fixed sun protection in the form of vertical wooden slats will be used here in some cases. The common rooms will have decentralized ventilation units with heat recovery.

The roof of the building will be greened. Façade trees will be planted in front of two façades. The emergency staircase will also be planted with greenery.

For future developments, the possibility of adding a further storey has been taken into account in the planning and dimensioning up to service phase 3.

By adding and removing non-load-bearing walls, the school will have a total of 12 classrooms, 3 multi-purpose rooms, 3 specialist rooms, 6 differentiation rooms, staff rooms, administration, janitor's office, checkrooms and ancillary rooms in the old building and pavilion once the project is complete. The janitor's office will be relocated from the basement to the first floor, the teachers' room and administration will be spatially linked and existing passageways will be removed. There are still 4 OGS group rooms in the pavilion.

Sustainability is playing an increasingly important role in the City of Aachen's construction projects. The exemplary function as a public building owner, the desire for healthy buildings and economical and ecological operation over the entire service life lead to requirements that go far beyond those of an energy-efficient building.
Planning should therefore be based on the following assessment criteria:

• Ecological quality
• Economic quality
• Socio-cultural quality
• Technical quality
• Process quality
• Location features

The extension is responsibly aligned with the principles of future construction.

In the Committee for Schools and Further Education on 28.10.2021, the administration was commissioned to update service phases 1 to 3 for the Mataréstraße Montessori elementary school in accordance with HOAI, including cost calculation for variant 1.