If you have been living in a building for a very long time, chances are that you not know about the different aspects of that building. There are a lot of features and functionalities that can probably help you to identify the nature of the building, and the amount of features that are located within the building structure. Under such circumstances, you always need to go for the blueprint for at least the end of the building in order to understand the different structural cavity as well as all the other necessary requirements that can be formulated within a building.
Whenever there is any need for you to get a good idea, going to the municipality or the town Hall in order to get the building designs can also be very fruitful. You also need to ensure that you would be able to get the best possible functionality for such kind of thing, so that you do not have to worry about the different features that would be evident to you. Number one, you would be able to benefit from this exercise. Number two, you can certainly get to know the building layout.