The diagram below distils the key dimensional and design principles that typically inform successful applications across the borough. While some properties benefit from permitted development rights, many — particularly flats and homes within conservation areas — require a more considered planning strategy.
These parameters should be understood as a framework rather than a formula. Context, architectural character and street rhythm all influence what is ultimately supported. Early clarity at feasibility stage allows design decisions to be both aspirational and policy-aware, reducing risk and creating a more coherent planning journey.
