Net-to-gross efficiency is not just a density statistic. It is a planning quality signal. When efficiency is weak, the cause is usually not random. It often reflects oversized cores, awkward structure, long corridors, heavy service demand, deep podiums, parking distortion, or incompatible geometry.
Because of that, efficiency is valuable precisely because it appears early. It gives the team a way to challenge the plan before expensive detail work begins. If the ratio is weak, the project should not simply accept it as a characteristic. It should ask what physical planning decisions are creating the weakness.
Good early tools should therefore convert geometry into an interpretable signal. A weak ratio should lead to questions, not passive acceptance.
What to carry forward
Efficiency is not a cosmetic score. It is an early warning system for design and economic friction.
Questions to ask next
- What planning move is causing the efficiency drag?
- Can circulation, core size, or support space be redesigned before cost assumptions solidify?
- Is the project carrying too much non-value area relative to the revenue model?