Site Supervisor vs Project Manager on Mid-Size Jobs
On a custom home or a six-lot townhouse run, the person running the site is not always the person running the programme, invoices, and client meetings. Confusing the two creates gaps — or duplicate salaries.
Site supervisor focus
- Daily crew direction, safety, quality checks on the slab and frame
- Material deliveries and storage on site
- Toolbox talks and subcontractor coordination at working level
- First point for the leading hand and apprentices
A good site supervisor keeps the job moving when weather, supplier delays, or crew absences hit. They should not be buried in progress claim spreadsheets.
Project manager focus
- Programme across multiple jobs or stages
- Client and consultant communication
- Progress claims, variations, and contract administration
- Subcontractor award and scope alignment with estimates
On a single custom build, the owner-director often wears both hats. That works until a second job starts.
The tipping point
We typically see the split become necessary when:
- Three or more jobs run concurrently
- Head contract value exceeds $1.5m combined
- Client reporting requirements include formal monthly updates
- Subcontractor count on one job exceeds six packages
Hiring order
Hire the site supervisor first if quality and daily pace are the pain. Hire the project manager first if programme penalties, claim disputes, or client friction are the pain. Do not hire both at half capacity — partial attention on either role fails on site.
Queensland licensing note
Site supervisors on QBCC-licensed building work must meet supervisor licence requirements. Project managers handling contract administration do not replace that requirement. Check current QBCC guidance before restructuring roles.