Eminent Domain: Does the government have the right to take your property for private use?

In my opinion, I beileve the government, especially in a democratic country, should notify the houseowners of the fact that they want to use their property before they go ahead and do it, especially in the cases of expropriation. They should give the evicted owners adequate compensation as well as a new place to live. In other words, they have to justify their actions before they go ahead and do it.