
About Us
Real estate is our great passion
Behind Wellhöner Immobilien is the managing partner Marcus Wellhöner. The successful real estate agent from Mülheim an der Ruhr has many years of experience in the real estate industry, including as a manager of residential, commercial and retail properties.
He also works as a consultant and interim manager for various real estate companies throughout the region around Mülheim, Essen, Duisburg and Oberhausen.
Since 2017, the umbrella brand "Wellhöner Group" has united four business areas, all of which are managed as independent limited partnerships. We make no distinctions between our clients – private individuals are looked after just as competently as family offices and listed property holders.
As an owner-managed family business, the owners work actively in the company every day and are personally available to our clients – not just the face of the firm, but part of the team. This personality creates trust. Our guiding principle: from the region – for the region.

Get to know Wellhöner Immobilien
Experience Marcus Wellhöner and his team in the video – find out what distinguishes us as a real estate agent in Mülheim an der Ruhr.
A blue circle encloses a house
The Circle
Stands for continuity, focus on the property and flowing, forward-looking change.
The House
Stands for your properties and our holistic view of your property values – security and value enhancement.
"From the region – for the region! The real estate industry is my home. In all my assignments, I focus on the satisfaction of my employees as well as tenants, clients and customers."
Marcus Wellhöner
Founder & Managing Partner
Over 30 years of passion for real estate
Training as a real estate agent, Allianz Grundstücks AG Stuttgart
Further training as a state-certified business economist in the housing industry
Real estate officer to the CEO of UFA Theater AG – Entertainment Real Estate nationwide Germany
Managing Director of the Essen-based full-service real estate provider E.F.M. Gesellschaft für Facility Management mbH
Consultant and Interim Manager at SME and listed companies for real estate topics
Founder and managing partner of the four real estate companies of the Wellhöner Group
More about Marcus Wellhöner
Find out more about Marcus Wellhöner here – his professional career, his vision and his passion for the real estate industry. He is also a trainer for real estate management trainees (Immobilienkaufleute) and office management trainees (Kaufleute für Büromanagement), as well as a practical training partner for the Bachelor of Arts (B.A.) Real Estate degree programme – and, thanks to his many years of professional experience, has an excellent network within the real estate industry.
Press: Interview: “Buy only properties you can reach by bike” – wallstreet:online
From the region. For the region.
Rooted in Mülheim. Committed to business, real estate and urban development.
As owner and managing director of Wellhöner Immobilienmanagement GmbH & Co. KG, Marcus Wellhöner takes responsibility not only for the properties entrusted to him, but also for the economic and social development of the region.
For many years, he has been volunteering in associations, organizations and committees that support SMEs, the real estate industry, urban development and the common good. This involvement enables ongoing exchange with companies, institutions, property owners and decision-makers, and helps identify developments early and actively help shape them.
"Responsibility does not end at the property line. Anyone who manages real estate over the long term also bears responsibility for the development of their city and region."
Engagement at a Glance
Business & SMEs
- District Chairman of the MIT (SME Union) Mülheim an der Ruhr
- Delegate at state and federal level
- Assessor, Ruhr District Board
Real Estate Industry
- Regional Director, BVFI
- Active exchange within the real estate industry
Urban Development
- Expert citizen member of the Committee for Building, Housing and Urban Development
Region & Society
- Involvement in social, non-profit and regional organizations
- Membership Officer, Ortsverband Stadtmitte, CDU Mülheim an der Ruhr
Through this close connection to Mülheim an der Ruhr and the Ruhr region, Marcus Wellhöner follows current developments in housing, urban development, the real estate industry and the SME sector – not only from a professional perspective, but also out of personal conviction.
Why this involvement benefits our clients
Through regular exchange with the real estate industry, SMEs, public administration and municipal committees, Marcus Wellhöner stays close to developments in the region. This knowledge feeds into the daily work of Wellhöner Immobilien – for the benefit of owners, homeowners' associations, tenants and investors.
Our Work Is Built on
Five Core Principles
Responsibility
We treat every property as if it were our own.
Transparency
Owners should be able to understand what is happening and why decisions are made.
Reliability
Commitments are kept.
Expertise
Continuous professional development is part of who we are.
Regional Roots
We know the markets, the people and the particularities of the Ruhr region.
The People Behind Wellhöner

Marcus Wellhöner
Founder & Managing Partner
Experience: Over 30 years in the real estate industry
Areas of expertise: Company management, real estate brokerage, interim management
Training & Network: Trainer for real estate management trainees and office management trainees, as well as a practical training partner for the Bachelor of Arts (B.A.) Real Estate degree programme. Thanks to his many years of professional experience, he also has an excellent network within the real estate industry.
Press: Interview: “Buy only properties you can reach by bike” – wallstreet:online
“From the region – for the region! The real estate industry is my home. In all my assignments, I focus on the satisfaction of my employees as well as tenants, clients and customers.”

Nicole Schmitz
Partner & Senior Authorised Representative
Experience: Trained bank clerk, many years of experience in WEG and rental management
Areas of expertise: WEG management, rental management, accounting, HR
“Good management, to me, means attention to detail and reliability towards owners and tenants alike.”
Our Quality Promise
Facts That Speak for Themselves
Regional Director Mülheim an der Ruhr
Marcus Wellhöner is Regional Director of the BVFI for Mülheim an der Ruhr – the No. 1 practice association for the real estate industry. All information in the flyer.
Sustainability & ESG
Real estate is a long-term asset. What investors and legislators demand is lived practice for us – from energy future-proofing to social responsibility in the portfolio through to transparent corporate governance.
Listed properties – our particular passion
Historic buildings tell stories and connect generations. At Wellhöner Immobilien, we have a special enthusiasm for listed properties – they combine what defines us: long-term values, responsibility for substance and respect for history. From brokerage to renovation supervision to management, we look after historic properties throughout the Ruhr region.
Numbers that speak for themselves
Over 25 years of commitment in the Ruhr region. Our track record reflects the trust our clients place in us – and the standard we hold ourselves to, every day anew.
Properties Brokered
Successfully handed over to buyers and tenants
Satisfied Clients
Who recommend us to others
Sales Rate
Properties sold within the target timeframe
Market Experience
Rooted in the Ruhr region
Awards
For service and expertise
Active Mandates
In management and brokerage
Our Quality Standards
Structured processes, the four eyes principle and regular checks: find out which quality standards guide our work.
Four areas. One standard.
Expertise in Consulting
With objective criteria such as location analyses, cost optimisation and marketing strategies, we support you throughout the decision-making process and continue to accompany you with a structured sales process.
Visit websiteServices
- Interim Management for Real Estate
- Data Room Administration
- Introduction of Industry Software
- Due Diligence
- Further Training, Courses and Coaching
Your Real Estate Agent in Mülheim an der Ruhr
Achieving the best possible sale price for our clients’ properties is the focus of our daily work – for over 30 years we have worked as real estate agents in Mülheim, Essen, Duisburg, Oberhausen and other cities in the Ruhr region, and we know the local property market in detail.
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- Market-based valuation of your property
- Competent advice
- Professional marketing
- Exposé creation
- Conducting viewing appointments
Your Property Management in Mülheim
Well-functioning property management plays a key role in the satisfaction of tenants and homeowners. We provide value-enhancing, professional and individual rental and homeowners’ association management to the highest standards, in the interest of our clients.
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- Rental Management
- Homeowners’ Association Management (WEG)
- Commercial and Technical Property Management
- Solution-oriented Vacancy Prevention
All Services Around the Property
Our Facility Service covers the management of properties with technical, commercial and infrastructural tasks, including caretaker services, office and practice cleaning, and various special services. We work purposefully, competently and professionally to preserve – and even increase – the asset value of a property.
Visit websiteServices
- Caretaker Services
- Office and Practice Cleaning
- Technical and Infrastructural Tasks
- Special Services
Note: The services in the area of real estate consulting and the Facility Services are provided by legally independent sister companies of the Wellhöner Group (Wellhöner Consulting GmbH & Co. KG and Wellhöner Facility-Services GmbH & Co. KG). An automatic commissioning of these companies does not take place, but is possible. Both companies face regular competition. Clients are free to commission the services from third parties or the sister companies.
Not every property management company is right for every owners' association
We work especially successfully with owners who want long-term, transparent and professional management of their properties.
Talk to us in person
Whether brokerage, management or consulting – Marcus Wellhöner and his team look forward to your enquiry.
Phone
0208 - 77 89 93 90
info@wellhoener.immobilien
Address
Leineweberstr. 4, 45468 Mülheim an der Ruhr
Opening hours
Get to know us personally
Marcus Wellhöner and his team look forward to your enquiry – whether brokerage, management or consulting.
