Historical Project Cost Analyzer

Every closed project holds a lesson about what got estimated wrong, but that lesson almost never makes it into the next bid: the job gets filed away and the next one gets priced with the same template and the same old unit costs.

The skill doesn't analyze a single project — it cross-references several closed projects by cost category, calculates the average deviation aggregated across all of them, and tells apart a category that overruns every single time (a recurring pattern) from one that overran once because that particular job hit an unusual snag (an isolated case). It also compares average margin by project type and proposes the contingency to apply in the next estimate, category by category.

It doesn't replace a proper cost study or a detailed budget, and with fewer than 2-3 closed projects sharing the same category there isn't enough sample to call it a pattern — the skill says so explicitly instead of drawing a conclusion from a single data point.

BLOQBASE builds this cross-project analysis automatically and continuously, job after job, without anyone needing to sit down and compare CSVs periodically. If you want to see it with your own project history, reach out through /contacto.

How to put it to work on a real project

The idea isn't to download another file and forget it in a folder. Use it with a specific case: a pending certificate, a coordination meeting, a cost overrun or a handover to the developer. Fill in the resource with real data from your project, validate the result with your own technical judgment, and keep it as an internal reference to repeat the process next time.