What It Finds
Cost leakage means evidenced value loss such as penalties, wastage, rework, delay cost, idle resources, delayed PO impact, excess consumption, or calculated overruns. BOQ value, planned spend, contract value, work done, and advance recovery stay baseline budget.
| Signal | Category | Reason |
|---|---|---|
| BOQ value | BASELINE_BUDGET | Approved baseline for comparison. |
| Rework cost with source note | LEAKAGE_AND_OVERRUN | Potential value loss when evidence supports it. |
| Actual greater than Budget | LEAKAGE_AND_OVERRUN | Calculated as Actual - Budget when both values are available. |
Budget vs Leakage
Cost leakage is not total project value, BOQ value, planned spend, work done, or advance recovery. Constrovet keeps those baseline values separate.
Leakage findings are created only when project evidence supports them.
Overrun Analysis: When Budget and Actual Both Exist
Overrun is calculated only when Budget and Actual are both present for the same scope. The calculation is Actual - Budget.
| Input | Use | Output |
|---|---|---|
| Budget or BOQ only | Baseline evidence | No overrun calculation. |
| Budget and Actual | Comparable values | Actual - Budget. |
| Actual > Budget | Variance review | Overrun finding with citation. |
Keeping this calculation separate from baseline budget prevents contract value, planned spend, BOQ value, work done, or advance recovery from being mislabeled as leakage.
Records That Help
- Budget, actual spend, BOQ, contract value, and work-done statements.
- Procurement records, purchase orders, invoices, and material consumption logs.
- Daily progress reports, delay notes, site instructions, and schedule updates.
- ESG, energy, fuel, water, carbon, waste, and emissions records when available.
Example Output
| Finding type | Evidence used | Executive output |
|---|---|---|
| Calculated overrun | Budget and Actual values | Difference, formula, citation, confidence |
| Delayed PO impact | Purchase order date, site delay note, cost record | Delay link, cost exposure if evidenced, action owner |
| Material wastage | Material logs, invoices, consumption records | Potential leakage category and missing-evidence checks |
Action Use
Leakage findings can become 7-day evidence checks, 30-day recovery actions, and 90-day governance controls. Constrovet prepares the review view; stakeholders decide the action.
Without a cited review, the gap between approved budget and actual spend stays an assumption — and the first party to question it may be a financier, auditor, or dispute counsel, not the project team.
What Executives Get
Each finding should show the issue, category, amount if quantified, days if evidenced, citation, confidence, and missing evidence.