ImmoWissen Klartext
English channelFinding a flat, rental contract, service charges, renovation: each episode takes one topic and explains it thoroughly.
Coming soon
Coming soon
The English channel is launching soon.
The channels
In-depth
To the point
Coming soon
Pick your format
In-depth or to the point: both series are free, and new episodes are added regularly.
ImmoWissen Kompakt
English channelBuying, selling, financing, taxes and inheritance: the essentials in about twelve minutes.
The practical guides
Everything important to read up on
Each channel comes with an e-book: every chapter concisely summarised, with a clickable table of contents. 2026/2027 edition.
ImmoWissen Klartext
Finding & renting an apartment in Germany
Your practical guide to a successful apartment search.
Buy on Digistore24
ImmoWissen Kompakt
Safe property deals in Germany
The practical guide to buying and selling real estate, for everyone new to the German system.
Buy on Digistore24Promotion of my own products. Purchases are processed by Digistore24.
Who's explaining?
Knowledge from practice.
Knowledge from practice.
Not from a textbook.
I'm Holger Kossack, a licensed real estate agent in Germany since 1998. Over the years I have seen again and again how much money and stress a lack of knowledge costs. With ImmoWissen I pass on what you really need to know before you sign a purchase or rental contract.
Clearly explained
German legal terms are translated and explained with examples.
Up-to-date legal status
Laws, court rulings and deadlines are checked before every episode.
Free and independent
General information without sales pressure. It does not replace individual advice.