Investing in real estate in Lagos, with its unique geography of being surrounded by water, means being aware of the potential for flooding, especially during the rainy season. Here’s how you can identify flood-prone areas or estates in Lagos to make informed decisions about where to invest:
1. Check Historical Data:
Look into the historical data for the area or estate of interest. Local government agencies, environmental bodies, or even online resources may provide information on the historical flood data of the region of interest. While lamentable, it would be easier to check historical flood data of estates or areas in famous regions like Eti-Osa, Lekki, Agege, Apapa, etc, so this article is a comprehensive list of methods of identifying flood-prone areas/estates.
Flood risk map of Eti-Osa and Lagos Island
2. Topography Analysis
This entails employing the services of surveyors, with the added aid of hydrologists or civil engineers, for topography analysis. Surveyors are trained to measure and map the physical features of land, including elevation and slope, which are crucial factors in determining flood risk. They can use specialized equipment and techniques to gather data on the terrain, helping to identify low-lying areas or regions prone to water accumulation during heavy rainfall. For instance, Low-lying areas or regions close to water bodies such as rivers, lakes, or the ocean are more susceptible to flooding. Additionally, surveyors may collaborate with other professionals, such as hydrologists or civil engineers, to conduct comprehensive flood risk assessments and provide recommendations for mitigation measures.
While this can be an expensive procedure using specialized equipment and skilled personnel, rest assured that a thorough topography analysis saves money in the long run by helping to identify and mitigate flood risks, thereby reducing potential damages and losses.
3. Drainage Infrastructure
Evaluate the drainage system of the area. A poorly maintained or inadequate drainage infrastructure contributes to water accumulation and increases the risk of flooding. With sound drainage systems, the risk of flooding is significantly reduced.
4. Local Knowledge
Seek information from residents or individuals familiar with the area. They can offer insights into past flooding events and areas known to flood frequently. This is a straightforward method as it requires little to no money; it is just about asking the right questions
5. Government Flood Maps:
Check if the government provides flood risk maps or zoning regulations. These resources may highlight areas with a higher risk of flooding, helping you avoid investing in flood-prone zones.
Flood risk map of Alimosho, Agege, Ifako/ijaiye, Ikeja, kosofe, Oshodi, Mushin & Shomolu
6. Site Visits:
Visit the area during the rainy season to observe how water flows and whether there are signs of flooding. Pay attention to water accumulation and any evidence of previous flood damage. This method lets you know whether the area or estate is flood-prone or safe for investment.
7. Consult Experts:
Seek advice from real estate professionals, environmental consultants, or civil engineers specializing in flood risk assessment. They can conduct detailed studies and provide expert opinions on the flood risk of specific areas.
8. Insurance Considerations
Research flood insurance availability and costs for properties in the area. High insurance premiums or limited coverage options may indicate a higher flood risk.
9. Local Regulations
Familiarize yourself with local regulations and building codes related to floodplain management. Some areas may have restrictions or requirements for construction in flood-prone zones.
I hope that with this article, you’ve been educated on the various methods of identifying flood-prone areas, and if, perchance, you still decide to go ahead, ensure you know what you’re getting into. Wish you all the best!