- Building Type : Office building < 28m
- Construction Year : 2015
- Delivery year : 2015
- Address 1 - street : 33602 BIELEFELD, Deutschland
- Climate zone : [Dwb] Humid Continental Mild Summer, Dry Winter
- Net Floor Area : 7 200 m2
- Construction/refurbishment cost : 10 000 000 €
- Cost/m2 : 1388.89 €/m2
Primary energy need :
(Calculation method : DIN V 18599 )
The office and commercial building was realized as a zero-emission building. On the basis of a high-quality heat protection and a very efficient system technology, the energy saving regulations (EnEV 2009) are undercut by 65%. Due to the additional use of a photovoltaic system of 180 kWp on the roofs of the building, the remaining primary energy requirement of the building is completely covered. Over the year more energy is generated than consumed! A ventilation system with heat recovery, a district heating system with a low primary energy factor and a floor heating and cooling system can be mentioned as essential technical features. These components are controlled by a sleek but cunning building automation, which ensures an optimal room climate and a low energy consumption at all times. This makes the building a perfect example of an economically successful combination of comfort, flexibility and environmental protection.
See more details about this projecthttps://www.construction21.org/deutschland/articles/de/energie-gemassigte-klimazonen-gewinner-der-the-green-solutions-awards-2017-kirstein-sauer-deutschland.html
ContractorKirstein und Sauer GmbH Herr Benjamin Kirstein // Am Bach 2, 33602 Bielefeld // (0521) 96 888 10 // email@example.com
DesignerArchitekten Wannenmacher + Möller GmbH Herr Andreas Wannenmacher // Lessingstr. 48a 33604 Bielefeld // +49 521 964340 // firstname.lastname@example.org
Thermal consultancy agencysolares bauen GmbH solares bauen GmbH Emmy-Noether-Str. 2 D-79110 Freiburg i. Br. // +49 (0)761 4 56 88 - 30 // info (a) solares-bauen (dot) de Energy concept, building physics and TGA planning
Owner approach of sustainability
"Outstanding in every way" - Kirstein & Sauer is committed to developing and realizing high-quality properties for its own portfolio. In its own interest, this family-run company is particularly keen to ensure that new developments and plans are actually implemented at the required quality level. To this end, the projects are supported in the long term. From this guiding principle, the desire has been created to build a green building. On the one hand, tenants should benefit from low-cost, well-calculated ancillary costs. On the other hand, Kirstein & Sauer's own portfolio should be a zero-emission house, which should also be one of the most energy-efficient office buildings in Bielefeld in the long term.
The four-storey new building is on the site of a former car house. With a consumer market on the ground floor and above-ground offices for different users, the building will contribute to the revitalization and urban development of this commercial area east of Bielefeld city center. Access to the market is on the west side of the building, in the immediate vicinity of the pitches. The office rooms are accessed via two stairwells, each of which is placed at the building corners along the Werner-Bock-Strasse. In order to maximize the marketing of the office space, flexibility, comfort and low ancillary costs were at the forefront of architectural planning. The office floor plans were arranged in such a way that up to four autonomous rental units can be created on each floor and can be converted with little effort. Prerequisite for good thermal comfort and low energy consumption is an energy-efficient building envelope. Under an optically sophisticated clinker façade, which refers to the history of the town, conceals a 24cm-thick thermal insulation. Windows have been designed with triple glazing to achieve the best possible acoustic and thermal comfort (avoiding cold surfaces). In the offices, the décor remains visible and is used as a storage medium to minimize temperature fluctuations and overheating in the summer.
- 45 kWhpe/m2.year
- 126 kWhpe/m2.year
- 0 W.m-2.K-1
- Urban network
- Low temperature floor heating
- Urban network
- Water chiller
- Floor cooling
- Double flow heat exchanger
- Solar photovoltaic
- 100 %
- 1 KgCO2/m2/year
- 50 year(s)
Life Cycle Analysis
- 2 700 m3
Indoor Air quality
Health & Comfort
Demand-oriented, cost-efficient and ambitious energy planning
solares bauen GmbH
Management / Others
The energetic quality of the building could be achieved due to an ambitious planning, which follows the following principles:
- Cooperation of architecture and house technology. The energy concept incorporates both aspects of the building to achieve the best interaction between building envelope and technical installations. Recommendations by TGA planners for sun protection and insulation standards enable the use of a slim house technology
- careful determination of the needs and design of the technical installations. The needs of the user are precisely examined (occupancy, comfort requirement). On the basis of dynamic thermal simulations, the size of the technical installations (eg ventilation systems, floor cooling) and their regulation are optimized.
- Application of cost-effective, market-driven solutions. When choosing the technical components, the cost-benefit ratio is always taken into account. This is always invested in the right place, be it in the technical center or on the roof!
This planning approach is synonymous with quality and longevity for the client.
Due to its architectural quality and its mixed use as an office building and a consumer market, the building contributes to the revitalization and urban development of the city quarter in the direct vicinity (1.5 km) from Bielefeld Central Station. The building close to the road was positioned to the urban space of the public space along the Werner-Bock-Strasse and the obligatory parking spaces of the consumer market were arranged on the side and behind the building. The delivery area of the market was largely withdrawn from the public eye and moved into the interior of the building.
Land plot area
7 600 m2
- 100 car parking spaces in the outdoor area - covered bicycle parking spaces