Why KNX belongs in the brief for every new care scheme

KNX should be in the brief for a care scheme from concept stage, treated as core building infrastructure alongside the M&E package. The common alternative, designing the building first and adding automation later as a resident-facing layer, costs operators in both delivery and long-term performance.

A care home commissioned today will be operating into the 2050s. The systems running inside it need to support care delivery, resident independence, and asset value across that lifecycle. The case for KNX, designed in from the start, sits on those three points.

What KNX does in a care home

KNX is the international open standard for building automation. In a care setting it manages lighting, blinds, climate, and door control. It interfaces with telecare, nurse call, BMS, access control, and AV. It can sit behind staff-facing dashboards, behind resident interfaces, or behind nothing at all where automation runs silently in the background.

For an integrated retirement community or a residential care home, a single hardwired KNX system carries:

• Lighting in apartments, communal areas, and back-of-house, with scenes and circadian patterns where the lighting design calls for them
• HVAC control coordinated with the BMS, room by room
• Blinds and shading, set automatically by daylight or scheduled by zone
• Door release and zone access tied to the access control system
• Integration with the telecare or nurse call platform, so that an alert can also trigger a lighting and door response

One system, one job.

The operator case

Care delivery sits on top of the building. Where lighting, climate, and access work as one coordinated system, staff time on routine tasks reduces. Communal area lighting comes up at dusk across the whole scheme without a member of staff walking the corridors. Climate adjusts by zone to the schedule the operator sets. Door access overnight follows the policy, not the duty rota.

When a nurse call alert is raised, the system can put corridor lighting at full output, hold lift doors, and unlock the relevant communal doors without a staff member touching either system. None of that is novel. It is sequencing actions that already need to happen, in the right order, every time.

For residents, the system supports independence by adapting the environment to capability. Lighting that comes up gently when a bedroom is entered at night reduces fall risk. Climate that holds steady reduces complaints and call-outs. Blinds that close at dusk help maintain warmth in colder months. These are small operational gains that compound across hundreds of resident-days a year.

The asset case

A care home is a long-hold asset. The systems running inside it need to last, be maintainable, and avoid locking the operator into a single supplier 15 years from now.

KNX is hardwired, runs on an open international standard, and has more than 30 years of installed base across Europe. Devices from any KNX-certified manufacturer interoperate. A system installed in 2026 can be extended, reprogrammed, or partially replaced in 2046 without ripping out the infrastructure. That matters when the building outlives its first operator, its first refurbishment cycle, and the first generation of consumer technology.

Proprietary systems carry lock-in risk. Wireless systems carry resilience, security, and maintenance lifecycle risk that a care setting cannot absorb. For a long-hold asset, the protocol choice is a procurement decision, not a technology one.

Why it has to be in the brief at concept

Designing KNX into a building is structural. The bus cabling sits in the same containment as the lighting and small power. The system layout follows the architectural and M&E layout. Sensors and controls coordinate with the lighting design, the ceiling design, and the joinery.

Bringing the integrator into the design team at RIBA Stage 2 or 3 means the system is designed alongside the M&E package, documentation is issued through the M&E consultant, and trade interfaces are coordinated before they hit site. Bringing the integrator in at Stage 5, after the building is designed, means working within constraints the design did not anticipate.

The cost difference is real. The capability difference is larger. A scheme designed around a coordinated KNX system can do things a scheme with retrofitted automation cannot, because the cabling, the device locations, and the interfaces with other systems were planned that way from the start.

What it changes in procurement and delivery

Treating KNX as core infrastructure changes how an operator procures the scheme. The integrator joins the design team alongside the M&E consultant and lighting designer. Automation documentation is issued through the M&E consultant in formats consistent with the rest of the design output. On site, the project electrician installs alongside the integrator’s team, with the integrator retaining ownership of the system.

Commissioning is owned end-to-end. Aftercare is part of the engagement rather than a separate contract negotiated at handover. For a long-hold operator, that single line of accountability is the point. One team owns the automation from concept to year 25.

Where to take this

The implication for any developer or operator briefing a new care scheme is straightforward: write the automation into the brief at the same time as the M&E package. Bring the integrator into design team meetings from Stage 2. Treat the system as building infrastructure that supports care delivery and asset value over the hold.

The schemes that approach automation this way end up with buildings that run leaner operationally, hold their performance profile longer, and cost less to maintain.