
General planning for infrastructure: transport, urban planning, wastewater, development and noise – in Dortmund since 1905.

Generalplaner Infrastruktur Dr. Leßmann GmbH
DortmundNew on Amplifa
About Planungsgruppe Dr. Leßmann
Since 1905, Generalplaner Infrastruktur Dr. Leßmann GmbH has provided consulting services in the construction sector as an independent practice. From its original consulting services, the company has developed into a consulting and planning firm for infrastructure projects. As a general planner with all specialist disciplines under one roof, the practice covers interdisciplinary fields of work: planning management, planning procedures, urban planning, environment, transport, landscape, wastewater, development and construction management. Its services include, among other things, transport studies and expert reports, road designs, light rail and public transport acceleration measures, sewer designs and stormwater management, development plan preparation, as well as noise assessment and noise protection planning. Clients include municipalities such as Dortmund, Herten, Herne, Cologne, Düsseldorf and Heidelberg, as well as private developers, road construction authorities and development companies. The practice is located at Nederhoffstraße 23 in Dortmund.
- Site
- Dortmund
- Processes
- Planning Management, Planning Procedures, Urban Planning, Environment, Transport, Landscape, Wastewater, Development
- Materials
- Planning Management, Transport Studies / Expert Reports, Road Design, Light Rail / Public Transport Acceleration, Wastewater Disposal / Stormwater Management, Development / Development Plan Preparation, Noise Assessment / Noise Protection Planning, Urban Planning
- Founded
- 1905
- Industries
- Construction / Infrastructure, Public Sector / Municipalities, Transport / Public Transport, Real Estate Development, Utilities and Waste Management
- 01
Consulting and site survey
- 02
Planning management and planning procedures
- 03
Specialist planning (transport, wastewater, development, landscape, noise)
- 04
Construction management
Services and Fields of Work
Planning Management
Coordination and steering of complex planning tasks in the construction sector across all specialist disciplines.
Transport Studies / Expert Reports
Transport analyses, transport development plans and feasibility studies for municipalities and infrastructure authorities.
Road Design
Design and planning of federal, state and municipal roads including junctions and interchanges.
Light Rail / Public Transport Acceleration
Planning of light rail lines, stops and rail alignments to accelerate local public transport.
Wastewater Disposal / Stormwater Management
Sewer designs, wastewater disposal concepts and hydraulic verification.
Development / Development Plan Preparation
Development planning for residential and commercial areas as well as statutory development plans.
Noise Assessment / Noise Protection Planning
Noise assessment and noise protection planning for transport routes and development plan areas.
Urban Planning
Urban development measures, urban renewal and preliminary investigations for town centres.
Landscape / Open Spaces
Planning of open spaces and landscape-related measures in the context of infrastructure projects.
Environment
Environmental expertise accompanying planning and construction projects.
Location
Dortmund
DEOffice / Head Office
- Materials
- Planning and consulting services in the construction sector
Inside the production

Industries
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| Planning ManagementEngineering | – | – | – | – | – |
| Planning ProceduresEngineering | – | – | – | – | – |
| Urban PlanningEngineering | – | – | – | – | – |
| EnvironmentEngineering | – | – | – | – | – |
| TransportEngineering | – | – | – | – | – |
| LandscapeEngineering | – | – | – | – | – |
| WastewaterEngineering | – | – | – | – | – |
| DevelopmentEngineering | – | – | – | – | – |
| Construction ManagementEngineering | – | – | – | – | – |
| Transport Studies / Expert ReportsEngineering | – | – | – | – | – |
| Road DesignEngineering | – | – | – | – | – |
| Light Rail / Public Transport AccelerationEngineering | – | – | – | – | – |
| Wastewater Disposal / Stormwater ManagementEngineering | – | – | – | – | – |
| Noise Assessment / Noise Protection PlanningEngineering | – | – | – | – | – |
| Development Plan PreparationEngineering | – | – | – | – | – |
Additional services
History
- 1905
Foundation of the practice; since 1905 providing consulting services in the construction sector as an independent practice.