His wife, Mrs. Ong is interested in a 2-bedroom villa No. 1029 because she likes privacy, but she also worried about soil will slide from the villa above (no. 1002) which is located behind the villa. They saw the water flows from the top down through the villa to pass into the sea. They are concerned that in the future if it is raining. The water flows from the mountains down to the villa. Then the water flows through under the villa as well. How the project will prevent or fix this problem. They took a brochure to consider.