The Streetlight effect [0]. Just because you think that it is the only place that you can see anything doesn’t mean that it is meaningful to look there. A number with high precision doesn’t mean it will tell you anything meaningful. Some problems just don’t have any easy solutions.

So in your example, you just have to rely on the judgement of all your professional project leaders and architects and what they tell you.

[0] https://en.wikipedia.org/wiki/Streetlight_effect