The services of the contractor (AN) include the planning of the building, service phases (LPH) 2-9 according to § 34 HOAI for the renovation, modernization, expansion and expansion of the Sautanz building of the State Chancellery in Mainz (due to in-house work, partly omission of basic services or partial services of basic services).
The basic services are supplemented in particular by the following special services:
- Cost estimate structure in 2nd level and calculation structure in 3rd level,
- Creation, updating, documentation and implementation of the concept of accessibility (according to BNB),
- Creation and updating of a room book,
- Participation in topics related to sustainable building,
- Participation and updating of the inventory analysis,
- Participation in the certification according to BNB,
- Coordination of the pollution control.
Urban development
The so-called "Sautanz" or also called the old armory, is part of a building ensemble, which is located in the immediate vicinity of the Rhine. Together with the new armory, it forms an inner courtyard, which is completed in the southern part by a wall.
Building structure and history
The three-winged system in the shape of a horseshoe was built around 1604 in its current basic form. In the central axis there is a stair tower, here is also the main entrance. The building was almost completely destroyed in the Second World War. Only the cellar vaults, some outer walls and 2 gable walls remained.
At the end of the 1950s, the south wing was expanded for the SWR. Pollutants (KMF) built in from this period are still present in the basement. The technology is currently housed under the partially basement courtyard. The building is two-story with a steep mansard roof, in which the lower level in the roof space has been converted into office space. The loft is currently unused. The conversion and expansion does not take place during ongoing operations. The existing building will be vacated for the duration of the measure.
The building is a historical monument.
In order to concentrate the employees of the State Chancellery, who are currently still spread over several locations, in one location, the existing "Sautanz" building is to be renovated, the loft of the attic is to be expanded and an additional building to be built. The area of the existing garages is planned as the location for this. These are to be torn down and replaced by a new administrative building. Barrier-free access to the two buildings should be made possible, as well as an internal connection.
The following uses are to be accommodated in the new building:
- offices,
- Conference and seminar rooms.
Description of the technical building equipment:
The office areas are naturally ventilated. Larger meeting rooms are to be assessed according to AMEV and mechanically ventilated. The entire basement must also be mechanically ventilated and, if necessary, dehumidified. The basement areas will be equipped with water detection detectors.
The utility and electrical engineering trades are being completely rebuilt. The installation is generally carried out in a flush-mounted version.
Individual rooms are connected to an intrusion alarm system.
A construction site office will be made available for the duration of the measure.
Building data:
- Area to be renovated in existing HNF / NUF 1-6: approx. 689 m
- Area to be developed in existing HNF / NUF 1-6: approx. 219 m
- New extension building HNF / NUF 1-6: approx. 352 m
- Total HNF / NUF 1-6: approx. 1,260 m
- Total GFA: approx. 2 809 m
Expected project schedule:
Creation of KVM construction: 08/2021 - 02/2022 (6 months)
Creation of HU construction: 07/2022 - 01/2023 (6 months)
Implementation planning: 03/2024 up to and including 09/2024
Preparation and participation in the allocation: 09 - 12/2024
Start of construction: 05/2025
Completion: 09/2027
Start of use: 10/2027
Budget construction costs KG 300 + 400:
KG 300: EUR 6,915,000 gross
KG 400: EUR 3 800 000 gross
Total: EUR 10,715,000 gross
Supplement to Section II.2.5):
In procedural stage 2, the participants have to work out an idea sketch. This must be submitted with the submission of the offer and presented during the negotiation meeting. The task and evaluation are contained in the tender documents.
If the conditions described in the task are fulfilled, an expense allowance of EUR 2,000 net per work will be paid.