How to track construction site progress and control labour costs

1. Define progress in quantities, not impressions

Start with a work package that a supervisor can recognise on site: foundation reinforcement in zone A, wall formwork on level two, or roof installation on the west elevation. Give it a planned quantity, a unit, a labour allowance and a target completion date. Keep the same names in the estimate, programme and daily records.

Agree what counts as complete. Installed roof area may count only after the required inspection; reinforcement placed may be a separate activity from concrete poured. Recording those stages separately prevents the same work from being counted twice.

For a single activity, physical progress is completed quantity divided by planned quantity. If 80 m² of a 200 m² work package is complete, progress is 40%. Compare that with the quantity planned for the same date to assess the schedule. Do not add square metres, tonnes and cubic metres together to calculate overall project progress; use agreed weights or track each package separately.

2. Capture labour hours and completed work together

A timesheet tells you how long people worked. A progress record tells you what they completed. Labour cost control needs both, linked to the same activity, location and reporting period. Four people working eight hours each is 32 person-hours, not eight hours.

Split hours when a crew moves between activities. Record waiting time and rework separately so they remain visible in the total cost without distorting the explanation of productive output. Note whether quantities are measured or provisional, and confirm provisional figures before using them for a cost forecast.

Photos support the record, but a photo alone does not establish a quantity or the hours spent. A useful site update gives a location, the activity, completed units, the people and hours involved, and any issue that affected the work.

3. Make work management a daily decision process

Construction work management means turning site information into decisions about people, materials and the next available work front. Collecting reports is only the first step. Each unresolved issue needs an owner, a next action and a date for that action.

Review new blockers daily and compare quantities, hours and the remaining programme weekly. If the crew is waiting for drawings, the response may be to secure an answer or move to another work front. If output is low because access is restricted, sending more workers may increase cost without increasing progress.

Record scope changes separately from the original allowance. Capture what changed, who requested it, the affected quantity and the likely impact on time and cost. Follow the project's agreed approval and notification process rather than allowing additional work to disappear into the original budget.

• What was planned, and what is actually complete?
• Which activities used more hours per unit than allowed?
• What is blocking the next task, and who will resolve it?
• Which changes need a client decision or an updated forecast?

4. Use labour cost control to spot overruns early

Comparing labour spend with the entire project budget can hide a problem. A project may have spent only half its labour allowance but completed much less than half the work. Compare actual hours with the hours budgeted for the quantity actually completed.

Budget hours per unit = budget labour hours ÷ planned quantity. Actual hours per unit = actual labour hours ÷ completed quantity. Lower hours per unit means less labour time for the same output, provided the scope and quality are comparable.

For a cost comparison, use a consistent labour cost basis. If the budget includes employer costs, overtime or other labour-related costs, include the equivalent costs in actuals. With different worker rates, calculate actual cost from each worker's hours and applicable rate instead of assuming a single wage.

5. Forecast the remaining work, then investigate the cause

A simple labour forecast is actual cost to date plus estimated hours for the remaining quantity multiplied by the expected labour cost per hour. Use recent productivity only when the remaining work is comparable. Different access, crew experience, task complexity or working conditions may justify a different assumption.

Treat an adverse variance as a question to investigate. Check missing quantities, incorrectly allocated hours, rework, waiting time and scope changes before concluding that the crew is underperforming. Keep the original budget visible and record the assumptions behind each revised forecast.

Labour is one part of the project cost. Materials, subcontractors, plant and overheads need their own records before this becomes a forecast of the whole project's margin.

A daily construction progress report checklist

• Project, date, location and work package.
• Today's completed quantity and unit, plus the cumulative total without double-counting.
• Workers involved and person-hours allocated to the activity.
• Waiting time, rework and additional work recorded separately.
• Relevant photos or documents and any quantity still awaiting verification.
• Blocker or variation, responsible person, next action and target date.

Example of a useful site update

Zone A, wall formwork: 24 m² completed today. Three people worked eight hours each: 24 person-hours, including three person-hours waiting for the crane. The 24 m² is today's addition, not the cumulative total. Photo attached. Tomorrow's pour needs confirmation from the site manager by 15:00 today.