What does adaptive reuse involve in architecture?

Adaptive reuse in architecture refers to the process of repurposing an existing building for a different use than it was originally designed for. This concept is increasingly important in architecture and urban planning for several reasons, including sustainability, preservation of cultural heritage, and cost-effectiveness.

By converting old structures into new spaces, adaptive reuse helps minimize waste by reducing the need for new materials and resources that would be required for new construction. It also preserves the historical significance and character of communities, providing context and a sense of place while keeping the architectural lineage alive. This practice can serve various functions, transforming warehouses into loft apartments, churches into community centers, or factories into office spaces.

In contrast to other options, constructing new buildings with modern materials focuses on new development rather than reimagining existing structures, restoring buildings emphasizes returning them to their original state without a change in function, and demolishing older structures represents a completely different approach that does not preserve or repurpose any part of the existing architecture. Thus, the correct answer captures the essence of adaptive reuse in architecture perfectly.