Lang & Cie. Rhein-Ruhr Real Estate AG is part of the Lang & Cie. group. It develops multi-faceted real estate for national and international clients. The partnership-based cooperation with users, investors, public authorities and municipalities forms the basis of its success. Developments are based on high standards of urban planning quality as well as economic and ecological sustainability.


Key figures (status 2022)

Year of establishment:2014
floor area:146.000 sqm
Project volume:€ 590 million

Division Project Development

Lang & Cie Rhein-Ruhr Real Estate AG develops and realizes real estate with a focus on the Rhine-Ruhr region in the asset classes office, residential and hotel.


Lang & Cie. is always aware of its responsibility for sustainability when developing new projects. For example, the corporate headquarters of RWE AG was also certified with DGNB “Gold”.

Climate Protection

Our environment is undergoing a noticeable change. Lang & Cie. Rhein-Ruhr is therefore dedicated to climate protection and has not only recorded the relevant CO2 emission sources of its operations, but also controls them with the aim of continuous optimization. The Rhein-Ruhr location has consistently made itself completely climate-neutral. As a result, 100% of CO2 emissions are compensated for through a climate protection project.

Certification by
ClimatePartner Deutschland GmbH

Accounting period:2014 – 2023
Certificate:Climate Neutral Company
Compensation:253.8 tons CO2 (100% offset)
Climate Protection Project / ID Tracking:Biomass – Soacha, Colombia
Project Standard:Gold Standard, VER

Management Team

Rolf Müller
Rolf Müller (Board of Directors)
Dominic Müller-Jaeger
Dominic Müller-Jaeger (Board of Directors)
Günter Lux
Günter Lux (Board of Directors)

The management of Lang & Cie. has many years of experience as well as an extensive network in the real estate industry, the economy, politics and administration.

Rolf Müller

Rolf Müller

Member of the Management Board of Lang & Cie. Rhein-Ruhr Real Estate AG

Degree Bachelor of Architecture (Honors), Diploma of Architecture Architect

Technical project management WestendDuo for Hochtief Projektentwicklung GmbH, Frankfurt

Head of Project Management of the Rhine-Ruhr branch office for Hochtief Projektentwicklung GmbH, Düsseldorf-Cologne

Branch manager of the Rhine-Ruhr branch for Hochtief Projektentwicklung GmbH, Düsseldorf-Cologne

Dominic Müller-Jaeger

Dominic Müller-Jaeger

Member of the Management Board of Lang & Cie. Rhein-Ruhr Real Estate AG

Degree in business administration, real estate economics (ebs)

Auditing and management consultancy for KPMG, Cologne

Project management for Hochtief Projektentwicklung, Cologne-Düsseldorf

Regional Head Asset Management for Morgan Stanley/Argoneo, Frankfurt

Managing Director for RELEVEN Real Estate Management GmbH, Cologne

Günter Lux

Günter Lux

Member of the Management Board of Lang & Cie. Rhein-Ruhr Real Estate AG

Graduation Dipl. Ing. structural engineering, specialization in construction management at the FH Hildesheim

Architect, registered in the Architektenliste Niedersachsen since 1988

Project manager at Nord GkA (today NILEG), Hannover

Head of construction department of the Sparkasse, Leipzig

Managing director of Kilian Wohnbauten GmbH, Berlin

Managing Partner of Lux Bau Consult GmbH, Hildesheim