You've got it backwards:
Real Estate is the land!
The house is "attached" to the land, so it becomes part of the deal.
Anything that is "attached" to the house too.
The Assessor will separtate the house and land to determine the value/worth of each.
The only time this makes a diff to a Buyer, is when there is either no house on the land, or, it is a tear-down/rebuild.
Here where I am the lot value is almost always more than the house that sits on it. Because we are oceanfront the lots are worth more than the house. Not sure about where you are asking about since you don't mention that.