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Residential building in Berlin

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Herzogin Garten


We with any building.
Except castles in the air.

Are you starting a classic new building project in a luxury apartment complex in Berlin? Or a complex conversion for a city hotel in Hamburg? Or refurbishing a medical center in Leipzig to meet the latest fire prevention standards? Or planning a test laboratory for future-oriented room air technologies in Novosibirsk?

Whatever it is that you are planning, we will be happy to assist you in making it a success. Personal, integral, sustainable, and with a high level of expertise. Throughout all the life cycle phases of your property and beyond.


Your all-round partner for sustainable, successful buildings. That’s our goal.

We have already been able to prove our expertise in our wide service spectrum in over 800 successful projects.

No two projects are alike, and every project presents a challenge. That’s what makes our work so exciting. Perhaps yours will be our next project.

Ghassan Akra

Our management

Excellent support all round

... before, during and after your project.

Everything under one roof

... with your own consultant to support your needs.

30 years of decon.
360° building expertise.

More than three decades of expertise in the construction and property sectors. Clearly proven in around 800 successful projects from all areas of daily life.

70 passionately committed pioneers, action-takers and future planners, in four locations in Germany, have the bigger picture in sight: your project and the profitability of your property. That’s decon: your all-round partner for sustainable, successful buildings.

Or to put it another way: a modern engineering company for facility management-oriented, technical overall planning and a partner-run, family-owned company that is highly respected throughout Germany. That means you don’t just have the peace of mind of relying now on our many years of interdisciplinary experience, but of continuing to do so in 30 years’ time. Guaranteed. Whether you want us to implement your construction project or manage your property.

BI(M) = Building Information.
M = model + method + management.

...all those involved in planning, construction and operation work together on digital planning models.

Expertise in action. In every hoai phase.

From the calculation of the basics to building management: you have the choice. And we have the tools to ensure your success. From a single decon source. For all lifecycle phases of your property.

We retain an overview. You retain your success.

All building and usage-related data as a basis for important decisions for operation.

Everything under control. Including your purse.

From technology and quality to appointments and costs.

Anything else is a waste of time.

A precise assessment of the actual energetic condition of your building.

Because a bottomless pit can cost you a fortune.

Achieve the greatest possible transparency for your object with decon.

Because precaution is the best fire protection.

For a coordinated fire protection concept in which the structural, organizational and technical solution is optimized.

Thinking ahead. And building.

So that one gravel stone doesn’t suddenly create a mountain of problems.

From A for aggregate.
To Z for zoning.

We don’t have the power to stop climate change - or the increase in the cost of energy and raw materials. However, what we can and strive to do is to maintain the competitiveness and value of your property in the future - and even to increase it. By keeping later building operation costs in check. We use tried and tested, certified decon success mechanisms, which we put into practice at the right time and in the right place, for your particular needs: from technical services to property management. From our combined experience and expertise to interdisciplinary experts and innovative tools.

And because every construction project is not just unique, but also challenging, we always take every tiny detail into account during the planning stage, and are always on hand to help during every service phase. Personal, integral, and with a high level of expertise. We support you in developing, preparing and implementing your project, or in managing your property.

New residential building to Efficiency House 40 standard

New construction of a school campus

New construction of a residential park

New construction health center

New construction of institute building

New office and commercial building with underground car park

Our best reference.
Your satisfaction.

Thanks to our engineering know-how, an approach that consistently focuses on efficiency and our many years of decon expertise in the property sector, we can offer excellent experience that is not only successfully reflected in our wide range of services, but also in everyday project implementation. That’s why our list of reference projects is not just unusually long, but also very broad.

By the way: we have already reserved a special place for you on this list.

Take a look at all our references:

Technical building services, Property management or BIM - Building Information Modelling

decon takes 20th place in competitionline ranking 2021


decon continues to invest in professional development and qualification of its employees

decon supports the Albert-Schweitzer-Kinderdorf with a donation

Just in time for the New Year, we are pleased to announce a new large-scale project.

decon continues to invest in professional development and qualification of its employees

decon continues to invest in professional development and qualification of its employees

decon continues to invest in professional development and qualification of its employees

decon supports the Free State of Saxony in fault management for state-owned properties

Trust is good.
Knowledge is better.

With decon, you will always be up-to-date with the latest developments in technology and building management. And not only in practice - thanks to exciting new information about our current decon projects, international trade fairs and sector-specific future trends, which we will be happy to provide at regular intervals. Here and now.

Click here for all the latest news . . .

We’re looking for team spirits.
For long-term success.

For us, good is not good enough. That’s been our motto for 30 years. That’s why we’re always looking for highly qualified specialists and motivated people to help us make a valuable contribution. Both for the future of the exciting construction and property sector and for the continued success of our company.

As an employee of decon, you can enjoy a wide range of benefits. We don't just take care of your health and provide a basket full of fruit twice a week; we also support every individual member of staff and offer further training in a large number of different areas. And if you still get stuck every now and then, our creative spaces offer the chance to tank up on energy for new ideas.

Are you ambitious and goal-oriented, and do you want to get ahead in your career? Then this is just the right place for you.

Explore our career opportunities . . .

company pension plan

exciting projects

sports events

central location

decon garden

further training opportunities

coffee + water

vitamin flat rate

home offices + flexible working hours

creative and relaxation spaces

foosball + darts

company events

Head office Dresden

Reichenbachstraße 55
01069 Dresden

Phone:  +49 351 4666 227
Fax:  +49 351 4666 236
E-Mail:  info@decon.gmbh

Berlin office

Kurfürstenstraße 56
10785 Berlin

Phone:  +49 30 810061 30
Fax:  +49 30 810061 33
E-Mail:  info@decon.gmbh

Frankfurt office

Friedrich-Ebert-Anlage 36
60325 Frankfurt am Main

Phone:  +49 69 24433 3061
Fax:  +49 351 4666 236
E-Mail:  info@decon.gmbh

Munich office

Landsberger Straße 302
80687 München

Phone:  +49 89 215 269 66
Fax:  +49 351 4666 236
E-Mail:  info@decon.gmbh

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