Construction in a Working Hospital: What Good Staging Looks Like
Most hospital construction projects don’t fail because the build is complicated. They fail because the person running the build treated the hospital like a normal commercial fitout with slightly more paperwork.
The hoarding goes up, the trades move in, and someone assumes that as long as the physical zone is separated, the rest of the hospital continues normally. By the time the problems surface, a clinical area is offline, an infection control team is investigating, and the facility manager is explaining to the executive why no one caught it earlier.
This article is about what good staging looks like in a live Queensland healthcare facility: what the regulatory requirements demand, and what to look for in a builder who understands the environment.
It Isn’t Just “There Are People Nearby”
Live environment construction in healthcare is a specific discipline. The environment contains infection-vulnerable patients, active clinical workflows, air handling systems that span the entire building, staff operating around the clock, and regulatory oversight that doesn’t pause for a construction programme.
Certain failure modes are non-negotiable: mould in a clinical area, demolition dust reaching an intensive care unit, noise in critical care at the wrong hour. These aren’t risks that get managed after the fact. They have to be eliminated before work starts.
A retail tenancy fitout in a working shopping centre is a live environment. A new ward in an occupied hospital is something different entirely.
What Queensland Health Requires Before Work Starts
Queensland Health requires an Infection Prevention and Control (IPC) Building and Refurbishment checklist to be completed before any construction or refurbishment commences in a Queensland Health facility. This applies to works of all sizes.
The checklist classifies the activity using three inputs: the construction activity type, the infection control risk group for the patient population in the area, and the resulting construction classification. The 2025 Queensland Health guidance (Construction, Redevelopment, and the Built Environment, May 2025) and the Australasian Health Facility Guidelines 2025, Part D provide the current framework.
The construction classification runs from Class I to Class IV:
Class I covers minor, low-risk work: painting, replacing ceiling tiles in non-patient areas, minor plumbing repairs. Minimal dust generation, no direct patient interface. Requirements are basic: dust sheets, clean site, standard hygiene.
Class IV covers major demolition and construction adjacent to high-risk areas: intensive care, oncology, transplant units, operating theatres. Requirements are substantive: full-height solid hoarding, negative air pressure inside the work zone, HEPA filtration on all air extraction, antistatic sticky mats at every exit, designated clean contractor corridors, and independent air quality monitoring. The work zone is a sealed environment within the hospital.
Most healthcare projects sit in Class II or Class III. The mistake builders make is assessing the work in isolation without considering what is on the other side of the wall.
I’ve reviewed IPC checklists on hospital jobs where the construction activity was classified correctly and the risk group was wrong. Not because the person completing it didn’t know the classification system. Because they looked at the room being worked on, not the ward catchment and patient cohort it serves. A Class III job signed off as Class II, ready to start.
The Air Handling Problem
The most underestimated risk in healthcare construction is the building’s air handling system.
Hospitals are not sealed room by room. The HVAC system connects wards, departments, and support spaces across a building that might cover tens of thousands of square metres. Demolition activities generate dust, and dust carries particulates including fungal spores. Aspergillus fumigatus, a common environmental mould found in building materials and soil, becomes a serious clinical risk when immunocompromised patients inhale it. Construction-related aspergillosis events have been documented in Australian hospitals where the air handling system was not managed properly during building works.
The containment question isn’t just “is the hoarding tight?” It is: “do you know which air handling zones overlap your work area, and have you mapped the pressure differentials?” If the builder can’t answer that question before mobilisation, the IPC checklist has been signed off without the underlying assessment being done.
Mitigation involves sealing HVAC ducts serving the work zone, establishing and monitoring negative air pressure differentials, installing HEPA filtration at exhaust points, and running independent air quality testing throughout demolition. These controls have to be agreed with the facility’s engineering and infection control teams before a single tile comes off the ceiling. Not during the build. Before.
What a Staging Plan Looks Like in This Context
A staging plan for a live healthcare facility isn’t a construction programme. A programme tells you what work happens when. A staging plan tells you what that work means for everyone else in the building.
A staging document for a healthcare project maps:
- Zone definitions: construction zones and operational zones clearly delineated, updated as staging progresses
- Access routes: contractor access, patient and visitor access, staff access, and emergency egress, each defined separately with no shared paths between contractor and clinical movement
- Noise windows: hours when noisy or vibrating work is permitted, correlated directly against the clinical schedule for adjacent areas, including procedure lists, ICU activity, and outpatient sessions
- Operational dependencies: which activities require a clinical area to shut down, and which can proceed in parallel with appropriate controls in place
- Key availability dates: when each clinical area must be fully operational, whether for a scheduled procedure list, an outpatient clinic, or a regulatory inspection
I’ve been handed staging documents on healthcare jobs that hadn’t been updated since the first week of construction. The clinical schedule had changed multiple times. The builder was still working to a document that no longer reflected the facility.
This document has to be readable by the facility manager and the infection control team, not just the site supervisor. It has to update when the programme changes. And it has to be reconciled with the facility’s operational schedule: not produced once at the start and filed away.
The Sequence Map is the mechanism we use for this work. It maps the client’s operational constraints alongside the construction staging in a single live document, in a format clinical and facilities staff can read and share. Not a VelpasConn deliverable. A shared document both teams work from.
Questions to Ask Before Appointing a Builder
The gap between builders who understand this environment and those who don’t shows up quickly in conversation. Four questions worth asking:
How do you map the air handling system against your work zones? A builder who has done this before will describe a specific process: reviewing the building services drawings, consulting with the facilities team, defining pressure zones, and documenting controls before mobilisation. A builder who hasn’t will give a general answer about dust suppression.
What happens when a contractor works outside their designated zone? The answer should be a defined response protocol: immediate stop, incident report, IPC notification, and a zone reassessment. “We’d sort it out” isn’t a protocol.
How do we see your staging plan, and how often does it update? It should be a live document, accessible to the facility team, updated when the programme changes. A PDF submitted at the start of the project is already wrong.
Who is the single point of contact for IPC coordination on site, and what is their authority? Not “the site manager handles it.” A specific person with a defined role who has the authority to stop work and the responsibility to escalate. In a Class III or IV environment, that person needs to be named before Day 1.
Pre-Start Is Where This Is Won or Lost
The rigour of pre-construction assessment in a healthcare project determines whether the build is manageable or reactive. The IPC classification, the air handling map, the zone plan, the noise windows, the access routes: all of these have to be settled before work starts.
Gate 0 in our Director Gates process addresses exactly this in a healthcare context. It confirms the IPC risk classification has been signed off with the infection control team, the air handling system has been mapped, the zone plan has been agreed with facility management, and the staging document has been reviewed with the people who will work alongside it. That gate doesn’t open until those items are confirmed. That is the difference between a live-environment project that runs and one that creates a clinical incident.
Sources: Queensland Health, Construction, Redevelopment, and the Built Environment (May 2025); Australasian Health Facility Guidelines 2025, Part D — Infection Prevention and Control.