Being able to develop a property means being able to control the quality of the end result. It means retaining independence. Remaining flexible.

we are 12.18. Development

SCHLOSS Roxburghe Hotel & Golf Course
A black square on a black background representing the concept of creating exceptional and unique des

If you want something to be more than just ‘good’, then do it yourself!

We create havens where people can dream. Alluring holiday destinations. Unforgettable experiences. They are ... Different. On principle. Our mission, from acquisition through to opening, is to aim for the exceptional. And that applies not only to the properties we develop for our own portfolio – but also to those we develop for external clients. Thanks to our development division, we’re bound only by our own high standards of excellence. Planning, development, architecture and interiors by 12.18. Development.

Our range of services

From the big picture to the small details.

We turn visions into reality. And we have all the necessary skills to do so – from developing concepts to making architectural changes to coordinating all the different trades required in project development. And from target-group specific hotel complexes to interior designs that delight investors and guests alike. We create results we’d like to have ourselves. Independent. Flexible. Discerning.


Planning and developing market-friendly and location-appropriate concepts for real estate in the hotel and hospitality sector.


Managing projects and developing properties and resorts for our own portfolio and for our clients.


Designing modern, efficient and attractive architecture for our own properties and for external clients.

Interior Design

Designing interiors that harmonise with the character of the property and appeal to the target group.
Scenic view of a city located on a rocky island promoting sustainable growth in line with ESG princi
7Pines Resort Ibiza

Our projects

Developing projects.

Creating values.

Searching for the


We’re constantly searching for the exceptional. For land and real estate where we see potential. For more information on key data, please see our acquisition profile.
Our acquisition profile
*Mandatory field

We take data protection according to the EU-DSGVO seriously and do not pass on your data to third parties. This form sends and validates your entered data via SSL. You and the responsible administrator will then receive a copy of your request via e-mail. Further information on the collection, storage and protection of your data can be found in our data protection regulations.
Send »

The Team

Thinking outside the box. Engineering worlds.

We answer only to our investors and our own high standards. For this purpose, we’ve formed a team of architects, interior designers and project managers who design, flesh out and carry out our visionary concepts.
A man with a beard standing in front of the camera

Felix Müller

Head of Project Development

Carsten Deis

Senior Project Manager Architecture
A man with a beard and mustache

Oliver Gellhaus

Senior Project Manager
A woman with long hair smiling

Stephanie Aretz

Senior Project Manager Interior Design
A smiling woman with long hair

Talia Uslu

Project Manager

Meike-Susann Müller

Project Manager Architecture
We use cookies to optimize our website for you and to be able to improve it continuously. By clicking on "Accept all", you agree to the use of cookies or set your own preferences. You can find further information on cookies in our privacy policy.