In a first-floor apartment, you typically have walls that are:
Interior Walls: These are the walls within your apartment that separate rooms from each other. For example, walls separating the living room, bedrooms, kitchen, bathroom, etc. These walls are considered part of your private space.
Exterior Walls: These are the walls that form the outer perimeter of your apartment. They face the outside of the building and are responsible for separating your apartment from neighboring apartments or the external environment.
Party Walls: In multi-story buildings, a party wall is a wall that is shared with another unit or apartment. It divides your space from the neighboring unit's space. These walls are common between adjacent apartments and are usually thicker to provide soundproofing and structural support.
Common Walls: Some walls may be considered common walls, which means they are jointly owned and maintained by multiple units or all the units in the building. Common walls are usually found in buildings where apartments share walls in a side-by-side configuration.
It's important to refer to your lease agreement or the building's floor plan to have a clear understanding of the layout and which walls specifically belong to your apartment. The boundaries of your apartment are usually indicated in these documents. Additionally, if you have any doubts or questions, you can always reach out to your building management or landlord for clarification.