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Built Form

5.1.4 Blocks

Blocks are the fundamental components of urban structure. They shape how buildings are arranged, how streets connect, and how people navigate and move around a neighbourhood. Well-designed blocks support walkability, permeability and active street frontages. They help define a legible and coherent urban form.

MUST

Blocks must have clear backs and fronts with buildings facing streets or public spaces and back gardens backing onto back gardens or rear parking courts. Back gardens which interface with public space will not be permitted.

MUST

Where a site backs onto existing dwellings or other buildings it must 'complete the block' with the back of new homes backing onto existing homes.

SHOULD

Blocks should be a maximum of 150m long, and 50m wide.

MUST

Blocks in town and local centres must be designed with a formal, regular layout, varied building heights, and rear parking (if it is required).

MUST

Blocks in an urban neighbourhood must be designed with a formal character, typically with a clear perimeter block layout, consistent building lines, and front doors facing the street.

MUST

Blocks in a village development must be designed with an informal, organic character, unless the existing pattern of development justifies otherwise.

Backs and fronts good and bad image
Fig 5.13 Blocks must have clear backs and fronts with buildings fronting onto streets or public spaces (left). The example on the right is poorly resolved, with rear gardens facing the street and public space.

Block completion good and bad image
Fig 5.14 Example of a well-designed block (left) where new development ’completes the block ‘and a poor example (right) where the new development ignores the prevailing pattern of development.

Built Form - Types of Block (NMDC) image
Fig 5.15 Examples of formal and informal blocks that are walkable and permeable (Credit: NMDC).