What is key to check when reviewing new house plans on a slab foundation in the fringe?

When reviewing new house plans on a slab foundation in areas subject to flooding—referred to as the fringe—it's crucial to check the proposed elevation of the lowest floor. This is because one of the primary considerations in floodplain management is ensuring that the lowest floor of a building is constructed at or above the base flood elevation, reducing the risk of flood damage.

In areas prone to flooding, such as those on the fringe, it's essential to ensure that appropriate erosion controls are also in place. These measures help mitigate soil erosion and manage stormwater, which can be critical in maintaining the integrity of the constructed foundation as well as the surrounding environment. This focus on elevation and erosion control aligns with the overarching goals of floodplain management, which prioritizes safety, structural integrity, and environmental resilience.

The other aspects, such as the type of materials used for construction, aesthetic design, and the size of the structure, while important in the broader context of building design and construction, do not directly address the critical aspects related to flood risk management. Prioritizing the elevation of the lowest floor and implementing erosion controls ensures that the structure remains safe and compliant with regulations aimed at reducing flood vulnerabilities.