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  • Your Service Provider and Partner

alt+kelber has retailed more than 43,000 apartments to date. On top of that, more than 720,000 sales-relevant due diligence procedures for apartments have been handled on behalf of investors. We also masterminded all major housing portfolio transactions in Germany in the role of consultant. Today, we have about 49,000 residential and commercial assets under management nationwide.

Formed more than 25 years ago, the Heilbronn-based service provider alt+kelber operates over 50 branch offices across Germany with over 300 full-time employees. Since October 2007, alt+kelber has been a member company of conwert Immobilien Gruppe in Vienna.

Our target groups include private and municipal housing companies, specifically investment funds, banks, as well as private and institutional investors inside and outside Germany. We will help you enter the attractive market of German residential real estate, and to optimise and develop your existing real estate investments.

With our sales offices everywhere in Germany, you may avail yourself of a powerful service network. Let this brochure introduce you - our customer - to the network's benefits and to the specific sales-oriented services that the member companies of our group have to offer.

We offer our services nationwide in the following areas:

  • Consulting Due diligence, concepts, strategies, sales preparation, project planning


  • Management Asset management, property management, letting services


  • Sales Sales of apartments, housing packages, investment apartment buildings and homes (new construction), housing privatisation, concepts and special projects for municipal housing companies, capital investments, after-sale service