General Contractor for Planning and Turnkey Realization of Commercial and Industrial Buildings
Willy Johannes Bau GmbH & Co. KG
Hemslingen (Headquarters) · Hamburg · DortmundNew on Amplifa
The Family Business Since 1904
Johannes Bau is a family-owned business in the fourth generation, based in Hemslingen (Lower Saxony), founded in 1904 as a forge. Its core business is the innovative planning of all HOAI performance phases (1–9), including design planning, architecture, and design, as well as the turnkey realization of commercial and industrial buildings as a general contractor and general contractor. The range of services includes specialized structures such as aircraft hangars and large test rigs for wind turbine rotors, usable parking garages (PARK»RAUM system), logistics, production, and exhibition buildings, as well as office buildings, hotels, and nursing and senior homes. Services also include property investigations, construction financing, sustainable and energy-efficient construction with PV systems, heat pumps, and green roofs, as well as aftersales service. The trades are coordinated and controlled for quality and deadlines by the company. Customers come from industry, logistics, and social infrastructure, among others.
- Site
- Hemslingen
- Processes
- Free Initial Consultation / Project Study, Planning of all HOAI Performance Phases 1–9 incl. Design Planning, Architecture + Design, Building Permit, Financing Advice, Property Investigations (e.g., Soil Reports), Turnkey Realization as General Contractor/General Contractor (Trade Coordination and, Construction Financing, Aftersales Service, Repurposing Options in Parking Garage Construction (PARK»RAUM Cooperation), Life-Cycle Cost Analysis (Parking Garage Construction)
- Materials
- General Contractor / General Contractor, Parking Garage Construction System, Energy Efficient Construction, Sustainable Logistics Properties
- Founded
- 1904
- Industries
- Commercial and Industrial Construction, Logistics, Parking Garage Construction / Mobility, Production Construction, Aircraft Hangars / Specialized Structures, Hotels, Nursing and Senior Homes
- 01
Free Initial Consultation / Project Study
- 02
Property Investigations and Financing Advice
- 03
Planning of all HOAI Performance Phases 1–9 incl. Architecture and Design
- 04
Building Permit and Approval
- 05
Turnkey Realization as General Contractor (Trade Coordination and
- 06
Aftersales Service
Planning and Construction Concepts
General Contractor / General Contractor
Turnkey trade coordination and control for quality and deadlines with long-standing subcontractors.
Parking Garage Construction System
Usable parking garage properties with split-level, life cycle cost analysis, and repurposing options.
Energy Efficient Construction
PV systems, heat pumps, green roofs, geothermal, and green roof vegetation for sustainable commercial properties.
Sustainable Logistics Properties
Ecological logistics properties as a blueprint for future logistics buildings.
Locations
Hemslingen
DEHeadquarters / Company Center
Hamburg
DELocation/Office
Dortmund
DELocation/Office
Reference Projects
Inside the production
Industries
Additional services
Reference customers
Over 120 Years of Construction History
- 1904
Founded as a forge by Willy Johannes; path from steel construction to turnkey commercial construction; today a family business in the 4th generation.
- 2013
General Contractor commission for production facility for dental materials of MTG Mühlbauer Technology GmbH, Hamburg (Completed 2014).
- 2018
Commission for the new headquarters of Riese & Müller in Mültal (20,000 m², production starting 2019); followed in 2019 by a commission for a 5,000 m² warehouse.
- 2019
Completion of the production facility for printing machines (Koenig & Bauer / K&B Kammann) in Löhne.