Quick Answer
Choose a location with a gentle slope to allow for a gravity-fed water system and a south-facing slope for passive solar heating. Consider local building codes, zoning regulations, and environmental factors like soil stability and underground water tables. Ensure easy access to utilities and transportation.
Site Selection Considerations
When selecting a location for an underground home, the topography of the land plays a crucial role. A gentle slope of 1-2% is ideal for a gravity-fed water system, which reduces the need for pumps and increases the efficiency of the system. Additionally, a south-facing slope can be utilized for passive solar heating, reducing the need for artificial heating sources.
Geotechnical and Hydrological Factors
The geotechnical and hydrological conditions of the site must also be carefully evaluated. A soil stability assessment is necessary to determine if the soil can support the weight of the underground structure. The water table should also be considered, as it can impact the design of the foundation and the installation of a septic system. In areas with high water tables, a French drain or other drainage system may be necessary to prevent water accumulation around the structure.
Access and Utilities
Finally, consider the location’s accessibility and proximity to utilities. A location with easy access to roads, utilities, and transportation hubs can make maintenance and repairs simpler and more cost-effective. It’s also essential to ensure that the location is not prone to natural disasters or extreme weather conditions that could compromise the structure’s integrity.
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