Attic Bedrooms and the Classification of Houses: Are They Considered 3-Story Homes?
The classification of a house as a certain number of stories is a matter of local building codes and regulations. These regulations can vary significantly by region, leading to confusion when determining the exact number of stories in a house.
Typically, a house is classified based on the number of levels that are habitable and intended for living. If bedrooms are built in the attic and meet the requirements for habitability, such as proper ceiling height, egress, and ventilation, the house might be considered a 3-story house. However, if the attic is not designed for regular living use, it may still be classified as a 2-story home.
Local Building Codes and Habitability Standards
For a bedroom to be legally considered habitable and contribute to the story count, it must meet specific codes. By code, legal bedrooms have a ceiling height of at least 8 feet and must have an exterior window for ventilation and egress. These standards ensure that the space is safe and usable for living.
Some might argue that a house with bedrooms in the attic is a 2.5-story house where only a portion of the attic is considered "occupiable." This term refers to the portion of the attic that can be legally used and accessed for regular living purposes. In cases where the attic is still considered an attic and is not designed for living, the house would likely be classified as a 2-story home.
The Structure and Design of the House
The structure of the house plays a significant role in determining its story count. To me, a three-story house would have a roof area, even if it's an attic or modern trusses. Depending on the specific design, a house could be classified as having 2.5 stories due to the slope of the roof, making the attic not a full story.
For instance, if a house has two main floors plus an attic with bedrooms that meet the habitability standards, it could be considered a 3-story house. On the other hand, if the attic is not designed for regular living use, it would not contribute to the story count, and the house would remain a 2-story home.
Additional Complicating Factors: Basements
When basements are involved, the classification can become even more complex. A daylight basement, which allows natural light into the lower level, adds an extra living area that could be considered part of the overall story count. In such cases, a house might be classified as a 2-story house with a daylight basement and 4 levels of living space.
Understanding the local building codes and regulations is crucial for determining the exact story count of a house. Consulting local authorities or adherence to specific building codes ensures that the classification of the house is accurate and complies with legal standards. Whether a house is considered a 2-story, 2.5-story, or 3-story home depends on factors such as design, habitability standards, and local regulations.