Planning services of the current account according to HOAI § 34

Project planning building

Work phases 3 - 9

Brief description of the project:

The basis for the processing is the feasibility study for the G1 Communication & Meeting Center in Gudensberg.

The city of Gudensberg purchased the former food market in Grabenweg 1 in autumn 2020. Through surveys and discussions with user groups in winter 2020/2021, space requirements and the future uses of the communication & meeting center G1 were collected.

By September 2021, a feasibility study was prepared whose task was to translate the registered space requirements into the current building envelope, which were coordinated by a participation process, into a room program from the point of view of multifunctional use. The study is intended to form the basis for decision-making for the realization of the project.

After an analysis of the inventory with several inspections, an assessment of the building fabric, existing inventory plans and structural analysis, extensive inventory documentation was created.

As a result, a design with two components was developed:

Component A - Dormer & Roof Terrace Extension

Component B - conversion

Ground floor:

The main entrance is from the west into the foyer with cafeteria and the attached, flexibly connectable group rooms. A unisex and a barrier-free toilet are accessible directly from the foyer.

From there, the corridor begins, which leads through the middle of the building. Between the sound factory and the offices, the corridor opens up and forms another communication and exhibition space. The corridor branches off towards the side entrance just before the spacious communication area. Access to the kitchen and offices is located here. The offices consist of a larger shared office, as well as three other offices, which can be combined with mobile partitions.

On the main corridor to the east, the sound factory is planned bundled with its rehearsal rooms. Soundproofing walls, doors and windows are provided here. In order to counteract the completed character of this construction method, soundproof interior windows are planned in the direction of the exhibition corridor.

The department store for all faces the terrace, so that a private entrance and a shop window are possible. A sorting room and a storage room are planned.

There are additional sanitary facilities and two storage rooms at the back of the building. In addition, the staircase and elevator are located at the back entrance, which needs to be completely renewed.

Basement:

The basement level, with many smaller rooms, serves primarily as storage space. In addition, a large workshop space is planned for a bicycle workshop and manual work. A new light well is planned as a natural light source. In addition, an external staircase to the work room is planned as a separate access and escape route.

First floor:

A new timber frame dormer is placed in the rear existing gable roof so that both the lift and the staircase can be extended upwards. A multi-purpose room is also created here. At the same time, the dormer window provides access to the planned roof terrace. There is also a toilet on the upper floor.

At this point, we will point out that the existing flat roof is currently not sustainable enough to hold the roof terrace as well as the intensive greening. A static upgrade is therefore necessary.

technical building equipment

In order to achieve the KfW 55 standard, an air-water heat pump and a central ventilation system are planned. Heat is generated via an air heat pump for central heating. Large-area heating is required to operate the heat pump at low temperatures, which is why underfloor heating with individual room control is provided here.

For sufficient ventilation of rooms with sometimes high expected occupancy and sound insulation requirements, a central ventilation system with fire protection equipment for sealing the wall outlets into the individual usage units is provided.

The sanitary installation was to be completely reinstalled, including a barrier-free toilet facility.

The alignment of the existing saddle roofs offers the possibility to place a PV system of approx. 200 m2 of collector area so that the building can partially supply itself with energy.

The space requirements were demonstrated in the design variants and a cost estimate was prepared in accordance with DIN276.

The award is to be carried out in the form of an award procedure (VGV) with a competition for building property planning in accordance with § 33 - 37 and Annex 10 HOAI (2021). The architectural services of work phases 3 - 9 HOAI and the local construction management will be announced.

Extensive knowledge, experience and references in the construction and conversion of public buildings and renovation of existing buildings must be described and proven in the application for participation. Particular emphasis is placed on intensive user group participation in the planning process and good public relations work for the project. In-depth knowledge or cooperation in dealing with acoustic construction must also be demonstrated.

The construction costs for the project are currently estimated at around €2.72 million for both components. €2.31 million is currently estimated for cost groups 300, 400 and 500.

Objectives / priorities

The space program is illustrated in the present feasibility study. There are no additions from the user side. The building description is available. The feasibility study documents will be handed over digitally.

The bidder is commissioned with the service phases 3-9.

The cost calculation (also by trade) must be set up in such a way that continuous cost tracking is possible right up to acceptance.

Billing is to be carried out in two separate funding programs for the conversion (component B) and the new building component (component A).

The work phases 3 - 9 are awarded in full.

• The overall project coordination is carried out by the architect, for example for:

• structural engineering (if required).

• Planning of technical equipment (to be commissioned).

• Building physics proof of thermal protection (will be commissioned).

• Building physics room acoustics (will be commissioned).

• Fire protection concept (to be commissioned).

In addition, due to the funding amount, the subsidy is required to carry out a construction test.

Execution period

The construction project is expected to begin in 2022 and be completed by the end of 2023.