Site supervisor
A site supervisor runs day-to-day site coordination: setting out, pre-starts, supervising trades, sign-offs, escalation. CPC50220 is the typical qualification.
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A site supervisor is the trade role responsible for day-to-day site coordination on a residential build. Their job: set out the work, run pre-start meetings and toolbox talks, supervise trades, sign off inspection hold points (subject to the certifier’s CSI sign-off), and escalate issues to the builder. The standard qualification is CPC50220 Diploma of Building and Construction (or older CPC50210), backed by a white card (CPCWHS1001) and ideally with several years on-site experience. Typical site supervisor cost is $90,000-$150,000+ annual salary or $80-$130/hour as a contractor (2026 Australian rates).
What a site supervisor does
| Task | Daily / Weekly / Stage |
|---|---|
| Set out the work at frame, slab, walls | Each stage |
| Pre-start meeting with trades | Daily |
| Toolbox talk | Weekly + ad hoc on hazards |
| Trade coordination (sequencing, conflicts) | Daily |
| Site cleanliness and safety walks | Daily |
| Inspection prep (pre-pour, frame, waterproof) | Each stage |
| Internal hold-point sign-off (before certifier) | Each stage |
| Sub-contractor management (briefing, monitoring) | Daily |
| Delivery coordination (materials in, off-cuts out) | Daily |
| Variation tracking (record on-site) | As issued |
| Defects management | Continuous, peaks at PC |
| Client communication (with the builder) | Weekly + as needed |
The site supervisor is the trade-facing presence on the build; the builder is typically commercial-facing and program-facing but not on site every day.
Role distinctions
| Role | What they do | Typical scope |
|---|---|---|
| Builder | Commercial responsibility, contract, licence | Multiple jobs |
| Project manager (residential) | Program, cost, client; often equals “builder” on small jobs | Multiple jobs |
| Site supervisor | Day-to-day site control | One job at a time (usually) |
| Leading hand | Senior chippy on the frame stage; not a full supervisor role | One job at a time |
| Foreman | Older term, similar to site supervisor; UK / European usage |
A small residential builder may BE the site supervisor on every job. A volume builder typically has one supervisor per 2-4 active builds.
Qualifications and credentials
| Credential | Level | Required for |
|---|---|---|
| White card (CPCWHS1001) | Entry | All site work |
| CPC50220 Diploma of Building and Construction | Diploma | Site supervisor (typical) |
| CPC60220 Advanced Diploma of Building and Construction | Advanced Diploma | Senior supervisor / builder pathway |
| State builder’s licence | License | If acting as builder, not just supervisor |
| First Aid certificate | Skill | Recommended; sometimes required |
| Pole / EWP / forklift | Skill | If using on site |
Most site supervisors come from a trade background (chippy, brickie, concretor) plus the CPC50220 Diploma. Some come via a builder-pathway from start.
Engagement structures
| Structure | Pros | Cons |
|---|---|---|
| Employed permanent (builder’s PAYG) | Continuity; deep knowledge of builder’s methods | Higher fixed cost |
| Employed casual | Flexibility | Less continuity |
| Contractor (ABN, hours-paid) | Variable cost; tax-efficient for both parties | Sub-contractor relationship requirements |
| Builder-owner (sole trader) | Cheapest for small builds | Builder spread thin on multiple builds |
Typical cost (2026 Australia, AUD ex-GST)
| Engagement | Indicative cost |
|---|---|
| Employed PAYG (mid-level supervisor) | $90,000-$130,000 base + super + payroll tax |
| Employed PAYG (senior supervisor) | $130,000-$170,000 base + super + payroll tax |
| Contractor (hourly) | $80-$130/hour |
| Contractor (day rate) | $700-$1,200/day |
Cost varies by region (Sydney / Melbourne / Brisbane CBD substantially higher than regional) and by builder type (high-end custom premium, volume builder leaner).
What goes wrong
- No site supervisor on a build that needs one: builder spread across multiple jobs; site decisions made by trades unilaterally; defects accumulate.
- Supervisor without diploma: experience-only supervisor lacks technical depth on regulation. Works on simple builds, struggles on complex.
- Supervisor not empowered: supervisor on site but builder overrides every decision via phone; supervisor becomes a glorified gate-keeper.
- No hand-over from supervisor to builder: defects list, variations, sub-contractor performance not documented; builder runs blind into PC.
- Site supervisor double-up (builder + supervisor on same job, both visiting daily): doubles cost without doubling effectiveness.
For builders
- Engage a site supervisor early on any build above ~$500k or any custom architectural build. Cheap insurance.
- Match the supervisor to the build complexity: a simple project-home build needs a different supervisor than a heritage renovation.
- Empower the supervisor: give them sign-off authority on day-to-day decisions; reserve commercial and major-scope calls for the builder.
- Document the handover: weekly written report (or even bullet points) from supervisor to builder summarising status, variations, defects, sub-contractor performance.
- Audit the site weekly: builder visits, walks with supervisor, confirms what’s in the supervisor’s report.
References
-
training.gov.au CPC50220: https://training.gov.au/Training/Details/CPC50220 (verified 2026-05-15).
-
training.gov.au CPCWHS1001: https://training.gov.au/Training/Details/CPCWHS1001 (verified 2026-05-15).
Related
See also
Last updated: 2026-05-15. Verified: 2026-05-15.