The City of Göttingen (AG) intends to award property planning services for the extension and energetic renovation of the Regenbogenschule, Harrenacker 1 in 37079 Göttingen.

For planning and execution, planning services are required for all service phases of the HOAI for the performance of object planning buildings and interiors.

The services of the service profiles:

- structural engineering

- Technical equipment for plant groups 1-3 (HLS)

- Technical equipment for plant groups 4, 5, 6 and 8 (ELT)

are awarded in separate procurement procedures. Special services, such as for building physics, the creation of a fire protection concept including fire protection acceptance, preparation of escape and rescue route plans, the preparation of a soil and pollutant report, SiGeKo, outdoor system planning, room acoustics and certification support are also awarded separately.

According to the current status, total costs of approx. 6,000,000 EUR (gross) can only be assumed for the new construction project (1st construction phase) including ancillary construction costs cost group 700. The scope of costs for the energy measures on existing buildings (2nd construction phase) is to be determined as part of the planning work.

As part of the project, the construction of a new building on the city-owned land (meadow) adjoining the existing buildings in the south is to be realized first.

The room stock is to be adapted in accordance with the standard of the AG. Replacement rooms are needed for an all-day operation that has been provisionally set up in the existing building since 2015. Barrier-free access to the class wing public transport system is to be included in the considerations for expansion planning. In addition to the new building extension, connection work will be required in the existing building stock and, subsequently, a few changes of use and conversions.

In addition, an overall energy assessment of existing buildings and new buildings is to be carried out. For the two existing school blocks, necessary renovations to the building fabric of the building envelope must be recorded and planned as separate subsequent construction phases. Sports buildings should only be considered with regard to the development of a heating concept, as there is currently joint heating.

The basic planning goal is the creation of functional, aesthetic and sustainable buildings. Sustainability concerns both the reduction of energy demand, the use of renewable energies and low-maintenance and low-consumption technology, as well as the use of durable and ecological building materials. The AG strives for certification according to DGNB. In addition, the passive house standard in the existing KfW 40 is to be achieved in the new construction project.