A workshop is useful when participants can do more than react to a finished proposal. It should give them a clear question, enough context and practical ways to describe how a place works today.
Prepare the material
Use simple maps, photographs and short prompts rather than a long presentation. Show the constraints honestly and identify the choices that are still open. This lets participants spend their time on decisions that can change.
Make room for different voices
Combine individual notes with small-group discussion. Someone who rarely speaks in a large room may still have a precise observation about safety, access or daily routines.
Show what changed
After the session, group findings into themes and explain which ideas will be tested, which cannot be adopted and why. Closing this loop turns participation into a visible part of the design process.