General technical planning - integrated design

At Drees & Sommer, we basically cover all engineering competences in planning and consultancy in house, from facade technology to energy design, technical building equipment, construction physics and ecology, structural design, and facility management during the planning phase. By bundling the competences, we can assist you with all questions as your holistic partner.

If you want to build for the future, you need to plan sustainably and ecologically. This is because buildings can only be operated in a cost-effective and environmentally friendly manner that is accepted by the user if facades and construction are designed to conserve resources and are optimally harmonized with the indoor climate and energy concept.

A building technology aligned with economic and sustainability criteria, featuring user-friendly room climate systems and ideally utilizing regenerative energy generation, forms a future-oriented overall concept that meets both your architectural and economic requirements. We have decades of experience planning and constructing sustainable buildings and green buildings in Switzerland, so our experienced team of engineers from the HVAC and electrical/building automation building technology divisions will provide you with comprehensive support.

We use modern BIM-based planning tools to deliver interface-free solutions in all planning phases, including tendering and site supervision. We also take on the overarching coordination tasks for all trades and, on request, integrate facility management issues into the planning and execution phases.

Sophisticated architecture and unique buildings. The modular construction of the future is based on digital methods. Similar to the manufacturing industry, they can also be used in the construction industry to standardize and modularize recurring planning and production processes much more easily and prefabricate them as sub-units of a building. You can achieve speed, savings, and efficiency without having to compromise on aesthetics and functionality.


We are an experienced team of specialist planners and technical project leaders specializing in the conception and planning of building technology (HVAC + electrical/building automation) in Switzerland. Thanks to our strong network and experience in demanding and technically complex projects, we also ensure the integration of various specialist areas. Our integral team enables seamless integration into modern architecture with suitable, innovative concepts, and technologies as well as state-of-the-art digital and lean planning and collaboration tools.

So, we are a strong and reliable partner in all implementation phases of your project.


Our services in the field of general planning and integrated design

Project management

The technical project manager is your central point of contact for building technology and the various interfaces with neighboring specialist disciplines. They provide support in setting up the project team, optimize planning and project processes, and lead project meetings and planning coordination.

BIM-based planning

Geometric data, data on technical properties, time sequences of production processes, and cost data. Our aim is to prepare multidimensional data structures in projects for the client, project management, and planning participants in terms of overall coordination, therefore optimizing the efficiency of the planning process.

We use the BIM methodology specifically for digital specialist planning in the HVAC and electrical/building automation sectors. We also use defined processes to generate quantity extracts from the coordinated BIM model, which we then use as a basis for cost calculations and tenders. Pre-planned, BIM-based planning makes the complexity caused by building utilization manageable.

This technical and spatial planning coordination (specialist coordination) of the specialist planners involved with the help of BIM tools and the consistent BIM collaboration approach contributes significantly to the planning quality and, therefore, to the success of your project.

Technical building equipment

We plan building services across all trades—from the initial concept up to the tender. We combine our many years of experience with well thought-out planning processes, modular planning, and modern BIM tools. We provide our clients with comprehensive advice and ensure targeted, professional, and BIM-based 3D planning. Our goal is to ensure technical building equipment meets the highest quality standards and offers cost and deadline certainty. We summarize all of this in a robust tender.

Modular planning

We employ modular planning to systematically map individual architectural designs and technical building concepts in planning sub-units, i.e. modules. This makes it easier to standardize planning, production or process sequences as they are integrated and detailed, which follows the example of the manufacturing industry. And we use standardized, recurring planning processes to avoid compromising on aesthetics, functionality, and efficiency.

Cost and deadline management

We determine and coordinate costs and deadlines of building technology across all service phases from the start of the project. To ensure the greatest possible transparency, our extensive project database provides comparative data for validation and plausibility checks.

Facade technology

Our facade planning develops facade concepts in close coordination with the client and architect. Our task is to improve the architect’s design of the facade economically, ensure the function of the facade, and create cost certainty from the outset. Our planning is product- and system-neutral, and we are able to provide our clients with expert advice in every planning phase.

Construction physics

In the specialist discipline of building physics, we ensure compliance with statutory sound and thermal insulation requirements. In addition, our building physicists lay the planning foundations for climate-friendly construction and a high level of user comfort. They act between different planning trades and contribute to ensuring the executing companies correctly implement the planning on the construction site.

Green building certification

Our decades of experience in the planning and construction of sustainable buildings and green buildings means we provide you with comprehensive support. This ranges from the ideas and concepts for new buildings to the analysis and optimization of existing properties or entire real estate portfolios to certification and efficiency improvements in building operation.


Contact for advice on general planning and integrated design

Sebastian Bräger Senior Planning Manager

+41 79 123 62 80