Guide
Basement, Semi-Basement, and Lower Ground Floor Guidelines
The Basement Guidelines from the Seychelles Planning Authority provide comprehensive standards for constructing basements, semi-basements, and lower ground floors. With rising development needs, these guidelines help architects and designers plan structures that minimize environmental impact while ensuring structural safety and resilience.
The choice of materials impacts a basement's durability, water resistance, and overall cost. The following materials are recommended based on the specific environmental conditions of Seychelles:
Poured Reinforced Concrete:
Ideal for high water table areas, as it resists cave-ins and is dense enough to prevent water infiltration.
Masonry Block Basements:
Used in areas with low water tables. These require thorough waterproofing at joints to prevent water seepage.
Precast Panel Basements:
Suitable for areas where pre-fabrication can expedite construction, though it requires heavy equipment for installation.