"Prefabricated" means the main parts of a building are made in a factory, not on site. For steel buildings that is the frame, the secondary members, and the roof and wall sheeting. The site crew assembles them instead of building from scratch.
Most prefabricated structures in Hyderabad today are pre-engineered buildings (PEB): steel buildings designed for one project and then fabricated to that design. They are used across the industrial belts around the city, from Medchal and Jeedimetla to Patancheru and Shamshabad.
The appeal is simple. A factory-made steel frame goes up in weeks, needs lighter foundations than a concrete frame, and can be extended or, for smaller structures, moved later.
Prefab, PEB and Conventional: What's the Difference?
Prefabricated is the umbrella term for anything built off-site. PEB is the most common prefab steel system for large buildings: tapered columns and rafters sized for the exact loads, so less steel is used for the same span. Conventional steel uses standard rolled sections cut and welded largely on site, and RCC is a poured concrete frame.
For a detailed comparison of cost, speed and quality, see our PEB vs conventional steel building guide.