Building Line
Definition
A defined line beyond which no building or structure may extend, established by planning authorities to control development and maintain urban order. Building lines can be mandatory (where buildings must be placed) or limiting (where buildings cannot exceed).
Purpose
Maintain consistent street frontages, protect future infrastructure corridors, and create coherent urban form while ensuring adequate space for public realm activities and infrastructure needs.
Examples of Use
- Street alignment control and urban continuity.
- Urban design guidelines implementation and streetscape character.
- Infrastructure planning and utility corridor protection.
- View corridor preservation and urban legibility.
- Public realm definition and pedestrian environment.
Related Terms
- Setback
- Street Frontage
- Property Boundary
- Building Envelope
- Street Wall
Notes
Building lines help create orderly urban development, protect public spaces, and ensure consistent urban form. They may vary by street hierarchy, urban context, and local planning objectives.
