Urban rules define the constraints Sustainable Planner's generative model works within. This article explains how the tool estimates rules automatically, how to enter your own, and what to keep in mind about data quality.
Where estimated rules come from
Rule estimation is based on publicly available open-source data, primarily from OpenStreetMap. In some cases this data may be outdated or incomplete, and certain sites may lack key information.
If data is missing for your selected site, you will be notified. You can then choose to proceed with AI-based estimations or manually input your own urban rules.
Building height
Sustainable Planner estimates building height rules by analysing available height data and building footprints. The AI identifies the most plausible zoning heights based on nearby building profiles.
Setback and distance rules
For distances to public, side, and back borders, as well as inter-building distances, the model analyses the spatial relationships between existing buildings and adjacent streets.
Site coverage, green, and open space
These values are determined by analysing local land use patterns and coverage ratios in the surrounding area to provide an informed estimation.
Parking
Parking rules are estimated based on the selected building typology and the typical parking requirements associated with it.
Entering rules yourself
You can define rules at two levels:
Simple rules: quick input for basic constraints, such as maximum height
Advanced rules: combine multiple constraints, such as height, floors, and alignment
AI rule interpretation
You can paste regulatory text into the advanced rules section, and the AI interprets and converts it into structured constraints. Make sure the text is placed in the correct rule field for proper parsing. Examples of rule inputs:
"Maximum building height: 18 meters"
"Maximum 6 floors"
"Mandatory setback of 5 meters from street boundary"
A full rule summary is available for transparency, so you can always see exactly which constraints are applied.
Note: Urban rules always take precedence over building typologies in case of conflict. Typologies guide design intent; rules define the constraints.
Validate before relying on estimates
Estimated rules are indicative only. Always validate them against the actual local regulations for your site before relying on them for decisions. Sustainable Planner supports early direction-setting; it is not a substitute for detailed compliance verification.