Surveyors measure and map the land before construction starts. They determine property boundaries, topography, and site levels to guide design and ensure buildings are positioned correctly.

These engineers study the soil, rock, and underground conditions of a site. They test ground stability, drainage, and bearing capacity to recommend safe foundation designs.

Civil engineers design and oversee infrastructure like roads, drainage systems, and utilities that support the building. They ensure the project meets safety, environmental, and regulatory standards.

Structural engineers make sure a building is strong and stable. They design the framework (beams, columns, slabs, etc.) to withstand loads, weather, and seismic forces.