The constraint
Construction dust in an operating healthcare environment is not an amenity issue. It carries organisms, and the people on the other side of the hoarding are the least able to tolerate them.
This changes the way the work is planned rather than the way it is built. The construction zone is sealed and held below the pressure of the spaces around it, so that air moves in rather than out. Entry and exit happen through an anteroom. Air is filtered and exhausted away from clinical areas. And the pressure differential is monitored continuously, because a control that is set up once and assumed is not a control.
The health service defines the risk level for the work and the precautions that follow. Our job is to build inside that framework and to give the infection prevention team something they can verify rather than something they have to trust.
Patients and staff
Clinical area, in use
higher pressure
Anteroom
entry, exit, tack mat, PPE
Construction zone
held at negative pressure; air filtered, then exhausted away
Exhaust
to outside
Air always moves toward the works and never out of them. The direction of that arrow is the whole control.
It is monitored continuously, not set up once and assumed.
The rest of it
What else a health project carries.
- Medical gases
- Installation, modification and certification of medical gas systems are specialist, licensed work with their own verification regime. They are also frequently on the critical path because the certification cannot be rushed.
- Imaging and shielding
- Radiation shielding is designed by a specialist and verified after installation. It affects the structure, the door hardware, the penetrations and the room sequence, and it cannot be adjusted once the room is finished.
- Essential and resilient services
- Emergency power, uninterruptible supply, nurse call and medical monitoring cannot be interrupted casually. Every isolation is a clinical decision as well as a construction one.
- Facility guidelines
- Health projects are commonly designed to the health facility guidelines used in Australia and New Zealand, alongside the health service’s own standards. Building to a room data sheet is a different discipline from building to a drawing.
- Finishes and cleanability
- Coved junctions, sealed joints, impact resistance and surfaces that survive hospital-grade cleaning chemistry. Finish selection in health is a technical decision.
- Commissioning and clinical handover
- Rooms are handed over to a clinical team who need to be trained on what is in them, with the certificates in hand. We plan the handover as a stage rather than a day.
Certification
Who has to approve a health facility, and in which state.
A health or laboratory facility answers to more than the building code. Knowing which body signs off what, and when, is most of the programme.
Every state licenses private health facilities separately, and each health service also carries its own capital works and design requirements above the licence. On top of that sit the national design guidelines that most public and many private projects are designed to, and, for a testing or research laboratory, an entirely separate accreditation and containment regime.
None of these is a builder’s approval to give. What a builder can do is know the sequence, get the evidence collected while the work is happening, and stop a project reaching completion with a room that cannot be licensed.
| What it governs | Who holds it | What it means for construction |
|---|---|---|
| Private health facility licensing | The state health department in each of South Australia, Victoria and New South Wales, under that state’s own health legislation. | Room sizes, adjacencies, sanitary and clinical provision are assessed against the licence category. A change of category mid-project changes the room, not the paperwork. |
| Health service capital works standards | The health service or operator itself. | Frequently stricter than the code on finishes, hardware, services and infection control. Ask for the standard at concept, because it is rarely volunteered. |
| Australasian Health Facility Guidelines | The design reference used across Australia and New Zealand. | Projects are designed to room data sheets rather than to drawings. Building to a room data sheet is a different discipline and a different set of checks. |
| Laboratory accreditation | The national accreditation body for testing and calibration laboratories. | The facility has to support the accredited method: environmental control, separation, and a documented performance record from day one. |
| Physical containment | The Australian and New Zealand standard for safety in laboratories, with a separate regulator where genetically modified organisms are handled. | Containment level drives pressure regime, finishes, penetrations, decontamination and the certification testing at the end. |
| Radiation and imaging | The state radiation regulator. | Shielding is designed by a specialist, verified after installation, and cannot be adjusted once the room is finished. |
Named by function rather than by instrument title, because titles and administering bodies change. Your project team should confirm the current instrument for your state and category.