From Prompt to Concept: How Brox Processes a Site Brief

When you submit a brief to Brox, the output appears in under four minutes. That window hides a sequence of steps that differ fundamentally from how any image AI works. Here is what actually happens.

Step 1 Parsing the Brief

Brox reads your input as structured data, not free text. Lot dimensions, zoning code, budget, required program, and performance targets are all extracted and validated before any geometry is generated. If a required input is ambiguous, Brox defaults conservatively never generating something that assumes more buildable area than you actually have.

Step 2 Zoning Filter

Before generating a single massing option, Brox queries setbacks, floor area ratio, height limits, and permitted uses for the lot's zone. Any configuration that violates a constraint is filtered out before it reaches the output stage. This is why every Brox concept is zoning-checked not checked after the fact, but designed within constraints from the first step.

Step 3 Massing Generation

Within the buildable envelope defined by zoning, Brox generates a range of massing options. It varies floor-plate shape, orientation, building height distribution, and setback usage to produce options that are genuinely different from each other not minor variations on one idea. The goal is to give you options that represent distinct strategic choices.

Step 4 Scoring and Cost Estimation

Each massing is scored against your stated criteria. Cost is estimated from construction type, gross floor area, and finishes grade using regional cost benchmarks. Energy performance is estimated from envelope area, orientation, and program. These scores let you compare options on the same basis not guess which is better.

Step 5 Concept Output

The top three concepts are packaged as plan views per floor, section cuts, a 3D massing view, and a one-page metrics summary. You can export any or all in CAD-ready formats or as a structured brief for your architect.