Lesson 3.2Lesson 3.2
Ideation methods
Bubble diagrams, zoning, parti sketches, and SCAMPER for space
The hookYou sit down to diverge and your mind goes blank after four ideas. Permission isn't enough — willpower runs dry. You need machinery: structured techniques that produce spatial ideas reliably, even on a bad day.
Why spatial ideation needs its own tools
Generic brainstorming produces concepts ('flexibility,' 'warmth') you can't build. Spatial design needs tools that produce spatial ideas — arrangements, flows, relationships. The four tools let you think about space and relationship fast and cheap, in the language of plans, from loose to focused.
Bubble diagrams — think in relationships, not rooms
Draw each space as a rough circle, size it to importance, connect bubbles to show which spaces need to be near each other. You solve the relationship problem (what's next to what — kitchen near dining, pooja away from toilet) before the geometry problem. Ten bubble diagrams in the time of one careful plan — the cheapest divergence machine in architecture.
Zoning — give the relationships a place to live
Map the settled relationships onto the real plot — roughly. Block out approximate areas responding to real constraints: public zone near the entrance and road, private bedrooms in the quiet back, service zone along a wall. The abstract relationships collide with reality (which wall, given the baking west sun and the south road noise?) and that collision generates ideas. The public-to-private gradient becomes a plan.
The parti — distil everything into one big idea
A parti (from prendre parti, 'to take a position') is the single organising idea of a whole design in one tiny sketch — so simple you could scratch it on a napkin, yet containing the soul. A courtyard house: a square with a hole. Our Hubballi home (concept: radical multi-functionality): a fixed service spine plus one large flexible volume that transforms. Generate several partis — three or four are three or four fundamentally different buildings. The discipline is ruthless simplicity: if you can't reduce your design to one clear diagram, you don't yet have a clear idea — you have a pile of features.
SCAMPER — forcing ideas when the well runs dry
A checklist of prompts when you're stuck: Substitute (divide with light instead of a wall), Combine (a partition that's also storage or the shrine), Adapt (a shoji screen, a bookshelf-wall), Modify (make it the whole ceiling, or transparent), Put to another use (furniture, a rug, planting as the divider), Eliminate (nothing divides, time does), Reverse (two tiny rooms merge into one flexible volume). Seven prompts, seven directions, from one stuck idea — a machine for divergence.
These tools are a sequence and a cycle, not one-way: you'll bubble → zone → parti, but a parti sends you back to redraw bubbles and a SCAMPER prompt cracks open a new parti. Speed and ugliness are features — all four are deliberately crude so they stay cheap and disposable; the moment a sketch gets nice, you've started converging and falling in love. And the parti is also a convergence and communication tool — once chosen, it keeps the whole team and client aligned on the core idea through the messy detail ahead; a design that can't be explained in one parti sketch will drift in execution.
1. Draw three bubble diagrams — same spaces, three different relationship logics (solid lines for 'near,' dashed for 'apart'). Zone one onto the real plot responding to actual constraints, then zone the same logic a second way. Sketch three partis — three different single-idea positions, each drawable in five seconds. Run SCAMPER on your stuck point — all seven prompts, one new variation each.
Check yourself
3 quick questions — pick an answer to see why.
Q1What problem does a bubble diagram solve before geometry?
Q2What is a parti?
Q3What is SCAMPER used for in spatial ideation?
Key terms
- Bubble diagram
- A quick sketch of spaces as rough circles, sized by importance and connected to show needed adjacencies — the cheapest divergence machine in architecture.
- Zoning
- Blocking the settled relationships onto the real plot as approximate areas that collide with constraints like sun, noise, and entrance.
- Parti
- The single ruthlessly simple organising idea of an entire design, drawable in seconds, such as 'a square with a hole.'
These tools rearrange the elements you already have. The most striking ideas often come from outside architecture entirely. How do you borrow brilliance from boats, beehives, and stepwells — things that aren't buildings at all?