<p>Scope: Complete wet utilities design (concept through detailed design) for 35-villa luxury retreat in Al Soueifa mountains. Water supply systems: irrigation network using treated effluent with tanks and pumping units, centralized domestic water supply with storage reservoirs and pressurized pumping for variable demand and elevation changes, Civil Defense-compliant firefighting network with hydrants, hose reels, tanks and pumps. Wastewater: gravity-based sewage collection system (pipelines, inspection chambers, manholes) conveying to on-site sewage treatment plant with effluent reuse for irrigation. Stormwater: surface drainage system (gullies, channels, catch basins, buried pipelines) coordinated with road grading and hardscape. Flood mitigation strategies with retention features and engineered drainage structures.<br>Challenge: Design reliable, sustainable utilities infrastructure within sensitive mountainous landscape marked by natural contours and environmental constraints. Navigate steep elevation profile requiring pressure management across water systems. Achieve regulatory compliance (Civil Defense firefighting, environmental standards) while maximizing water reuse and minimizing environmental impact. Coordinate utilities with challenging terrain, landscape preservation, and flood risk from extreme rainfall events in mountain catchment.<br>Approach: Phased utilities design progressed from concept through detailed design considering site elevation profile, natural features, and environmental factors. Irrigation network leverages treated sewage effluent - creating closed-loop water system coordinated with landscape and planting zones. Centralized domestic water supply with storage and pressurized pumping engineered for variable demand and terrain elevation changes. Civil Defense-compliant firefighting network strategically positioned for comprehensive site coverage. Gravity-based sewage collection maximizes efficiency while conveying to on-site treatment plant enabling effluent reuse. Surface water drainage coordinated with road grading and hardscape effectively manages runoff. Collaboration with hydrology specialists informed flood mitigation strategies addressing topography and catchment characteristics - localized retention and engineered drainage protect facilities during extreme rainfall.<br>Status: ongoing</p>