Why these guides exist
Most of what is written about the Polish property market is written for Poles, and it can afford to be. A Polish reader already knows what a księga wieczysta is, roughly what a notary charges and why nobody signs anything without one.
A reader arriving from outside Poland has none of that background, and the gaps are expensive. You can lose a tax relief worth thousands of zloty because you own a flat in another country. A parking space sold with the flat can turn a purchase that needed no permission into one that needs it from a government ministry. Both are ordinary parts of an ordinary transaction, and both are hard to find explained in any language other than Polish.
The guides
Each one stands on its own; read the one you need rather than working through them in order.
Frequently asked questions
Can a foreigner buy property in Poland at all?
Yes. Citizens of the EEA and Switzerland buy on exactly the same terms as Polish citizens. Everyone else can buy a flat without any permit, and needs a permit from the Polish Ministry of the Interior for a house with land or for land on its own.
Is this legal advice?
No. These guides explain the general rules for a general reader, and they name their sources so you can check them. How the rules apply to a specific property is a question for a Polish notary or lawyer — and in Poland the notary is involved in the transaction anyway.