When property owners want to sell a property, they can list it at the price they want, and buyers will be able to buy the property instantly at that price.
If a property is put for sale on different NFT marketplaces (e.g.: OpenSea, Rarible) or auctioned, Fabrica will always show the lower price you can buy the property for, and help you close the transaction at the best possible price.
Remember: you can always send an offer if you think the price is not right, or if the property is not listed for sale! The owner will receive a notification.