Five thousand buildable floor plans, valid by construction.
For a national building-materials brand's home-builder app: 5,114 Vastu- and code-compliant floor plans, every one rule-checked and scored. Change a rule and the whole library regenerates in minutes.
Prompting a model for floor plans failed: it broke placement and circulation rules and could not get past about a hundred plans. So the rules live in code. An executable rulebook scores every plan; a constraint solver fills the gaps in a planned design matrix wall by wall for the exact plot, and answers no rather than squeezing a room; multi-floor builders lock stairs, columns and wet walls in place; the client's architects approve each plan in a review tool. Generative models only do the skin: photoreal 3D front elevations are rendered over massing the code has already fixed, so the image model never invents the building. Bones first, skin second.
Company record · client name withheld · 3D elevation pipeline in validation