Are the buildings designed to be fully playable, including interiors?
Yes, most of our sets are designed with this in mind, by being divided into several parts: this allows easy access to the interiors of the ground floor and each floor. You can consult the photos, which systematically detail how the file is designed.
We also detail the number of pieces that the decor contains, you can consult this information by clicking on "Product details" of the product sheet: