Turn parcel data and provisional height or setback rules into alternative envelope scenarios, then document the differences that could influence early development decisions.

The actual workflow — connected nodes you can run to preview each step.
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See how an alternative height or setback interpretation could change the available envelope.

Give consultants and project teams a transparent record of the assumptions behind each scenario.

Identify which early options remain worth exploring before relying on more detailed planning work.
An envelope is only as reliable as the parcel and rule interpretation behind it. Present the applicable source, date, and confidence of each assumption alongside the scenario result.
Change one meaningful variable at a time where possible. When height, setbacks, exclusions, and parcel data all change together, the reason for the difference becomes difficult to explain.
Treat the output as early decision support. Overlay zones, exceptions, measurement methods, local interpretations, and project-specific controls may require authoritative planning review.
Create transparent envelope scenarios and identify the planning inputs that could materially change the result.