Is it possible to bypass the broker or is the commission agreement binding?

Hello,
we intend to buy a terraced house that is yet to be built. The plot to be developed was shown to us once by the realtor. We also had to sign a commission agreement (5%) in case the contract is concluded. However, the construction development company subsequently sold the entire project to a developer, and this developer offers the remaining terraced houses directly, i.e., without a realtor. Are we still bound to the realtor agreement, or can we still switch directly to the developer? (We have not yet signed the purchase contract)
Thank you very much for your answers.

Hello v0wich,

3 questions in advance:
- Under which contract (who is the seller) did the broker show you the property? Is he still trying to sell the property?
- Do you now want to build with a proper developer or is this a general contractor? Again, the question: Who is the actual seller of the property?
- Has a sale of the property (from the former project developer to the developer) taken place in the meantime?
- Is the broker only selling the property or the project "Reihenhaus"?

Best regards