
By Andrew Klein
Dedicated to my ‘S’ — my wife, my equal, my home, who taught me the difference between noise and presence.
I. Introduction: The Sound of a System Failing
In July 2026, a research team from the University of Freiburg published a study that should have sent shockwaves through every planning department in Australia. Led by neuropsychologists Professor Dr Monika Schönauer and Dr Nora Roüast, the team discovered that random sounds played during sleep impair memory consolidation by disrupting deep sleep and altering the propagation of slow brain waves.
Twenty adults participated in the study. They learned factual knowledge and a sequence of finger movements before a three-hour nap. On one test day, they heard randomly played clicks during sleep. On the other, it remained silent. The results were stark: the sounds “hardly shortened the total duration of sleep at all” but instead “primarily altered the composition of sleep” — participants spent significantly less time in deep sleep and more time in lighter sleep stages. Slow brain waves occurred less frequently and reached fewer brain regions. The result was “significantly poorer memory performance”.
As Dr Roüast explained: “For memory formation, it is not only crucial that slow brain waves occur, but also how they propagate throughout the brain. It is precisely this propagation that is impaired by the sounds“.
This is not an isolated finding. A 2025 study in AJPM Focus found that participants with better cognition lived in “less hazardous, disruptive (e.g., noisy, polluted) built environments”. Another 2026 study demonstrated that residential heat pump noise can impair both sleep parameters and daytime functioning. Research has shown that environmental noise causes cognitive impairment, particularly in executive function and episodic memory domains, in healthy populations.
The evidence is clear: noise is not merely an annoyance. It is a public health crisis.
Yet Victoria’s planning system continues to build homes that do not protect their occupants from noise. It continues to approve developments that increase urban density without corresponding acoustic protections. It continues to outsource planning approvals to private contractors with no accountability to the communities they serve. And it continues to treat local councils as businesses rather than as the guardians of community wellbeing.
This paper examines how we got here — and what it will take to fix it.
II. The Sleep Crisis: What the Research Reveals
A. The Freiburg Study
The Freiburg study, published in iScience on 9 July 2026, is a landmark in sleep research. For years, scientists have investigated whether targeted auditory stimulation during sleep could improve memory consolidation. This study revealed the opposite: untargeted, random noise impairs it.
The mechanism is specific. Random sounds do not necessarily wake the sleeper. Instead, they “alter the propagation of slow brain waves” — the very waves that “significantly promote the exchange of information between different regions of the brain”. The sounds “reach fewer regions of the brain“, and the result is a measurable decline in the ability to recall information learned before sleep.
Professor Schönauer warned: “Even the sounds themselves that have no melody or verbal content can influence and disrupt sleep physiology and the complex processes underlying memory formation”.
B. The Broader Evidence Base
The Freiburg study is part of a growing body of research linking environmental noise to cognitive decline:
· A 2025 study found that “ecological and demographic factors” — including “noise pollution, air quality, and temperature fluctuations” — have a “substantial impact on sleep health and cognitive function”.
· Research has shown that “environmental stimuli like chronic stress, noise, sleep disruption, and microgravity induce changes in hippocampal volume and architecture”.
· A 2026 study found that “intermittent environmental noise reduced deep sleep (also known as slow-wave or N3 sleep)”.
· Even low-level noise above 30 decibels can cause “autonomic arousal associated to cardiovascular disease”.
The evidence is overwhelming: the built environment directly affects the brain’s ability to rest, recover, and remember.
III. The Pattern: A Noisy World
The Freiburg researchers called for “improving sleep hygiene and reducing unnecessary noise in the sleeping environment”. But this individualises a systemic problem.
The noise is not coming from nowhere. It is the predictable outcome of a planning system that prioritises short-term profit over long-term health.
A. Housing Construction
Modern housing in Victoria is built to minimum standards — and those minimums are inadequate. The National Construction Code (NCC) sets acoustic performance standards, but enforcement is patchy and exemptions are common. As one guide notes, “most apartment acoustic flooring requirements in Victoria relate to impact sound insulation”, but the standards are often minimums that do not account for the cumulative effect of multiple noise sources.
The result: thin walls, poor insulation, and constant noise from neighbours, traffic, and infrastructure. Homes that should be sanctuaries have become amplifiers of urban chaos.
B. Urban Density
Victoria is in the midst of a density push. The government wants more housing, faster. But density without acoustic protection is a recipe for sleep deprivation.
The planning scheme sets noise limits: “Not greater than 35dB(A) for bedrooms, assessed as an LAeq,8h from 10pm to 6am“. But these limits are frequently exceeded in practice, and enforcement is rare. The result: more people in smaller spaces, more noise, and less quiet.
C. Cell Phone Service and Constant Connectivity
The expectation of constant availability — notifications, vibrations, the hum of devices — is another source of sleep disruption. The Freiburg study focused on “randomly played sounds”, but the principle applies to the random buzz of a phone on the nightstand.
D. The Marketplace
The problem is not a conspiracy. It is the predictable outcome of short-term thinking. Developers build to minimum standards because it is cheaper. Councils approve projects because they need the rate revenue. Governments push density because it looks like progress.
No one is asking: “What is the cost of this noise? What is the impact on memory, on learning, on the next generation?”
IV. The Planning System: A Case Study in Failure
A. The Kennett Earthquake
The roots of Victoria’s planning dysfunction lie in the 1990s. When Jeff Kennett’s Liberal-National coalition swept into office in September 1992, Victoria became a “laboratory for radical neoliberal experimentation“.
The scale was breathtaking:
· 75,000 public sector workers retrenched
· $30 billion+ in privatisation proceeds
· 10% cut in government spending across the board
But for local government, the hammer fell hardest. Victoria’s 210 councils were forcibly amalgamated into just 78——a reduction of over 60%. Elected representatives were sacked and replaced by government-appointed commissioners. Democracy was suspended — in some areas for up to two years.
The rationale was efficiency. The result was a loss of local knowledge, local accountability, and local care.
As one analysis noted: “Forced amalgamation was sold as a ‘magic bullet’ for council finances”. But it didn’t work. “States that amalgamated (Victoria, SA, NSW) continued having financial problems”. The infrastructure deficit continued growing everywhere.
B. The New Public Management Machine
The Kennett government didn’t just shrink government — it fundamentally reimagined its relationship with citizens. This was “new public management” with a vengeance:
· Departments slashed from 22 to just 8 between 1992–1996
· Governance restructured like a corporate board: Ministers as directors, bureaucrats as CEOs
· Compulsory competitive tendering — services put out to private tender
· A shift from “providing services” to “contracting outcomes”
For councils, this meant appointed CEOs with corporate powers, and a shift from community representation to corporate governance. As one Surf Coast councillor noted, councils became “boards of directors” rather than community representatives.
C. The Human Cost: Mansfield’s Fight Back
The theory met reality in places like Mansfield. Forced into the mega-council “Delatite Shire” with Benalla, the community watched their town unravel:
“Services collapsed, administration moved to Benalla and Mansfield entered a period of social and physical decline. It was brought home to locals that when Local Government is moved elsewhere, not only do the roads deteriorate, but other unrelated services such as the hospital and the schools suffer in a spiral of declining funding and numbers.”
Fourteen hundred locals formed the Mansfield District Residents and Ratepayers Association. They fought for years. Remarkably, in 2002, they won back their independence.
The lesson: amalgamation wasn’t inevitable. It was a choice — and sometimes communities could choose differently.
D. The Current State
Fast forward to 2026. What do we have?
Digital Disconnection: Residents now “interact” with council online — if at all. Physical counters are gone. Human faces are replaced by AI chatbots. Rates didn’t go down. Staff didn’t increase. Residents simply don’t matter as much.
The Political Launchpad: Council has become a career stepping-stone. Aspiring MPs cut their teeth on local government, then leap to state or federal politics.
Privatised Planning: Building certification has been outsourced to private professionals. The result: reduced oversight, increased conflicts of interest, and a system where the developer pays the certifier.
V. Building Failures: The Watchdog That Didn’t Bite
A. The VBA’s Failures
The Victorian Building Authority (VBA) was meant to protect homeowners. Instead, it became a symbol of regulatory capture.
In 2025, an independent review co-authored by lawyer and building regulation specialist Bronwyn Weir found that “poor building work standards and unethical conduct had flourished on the watch of an unresponsive watchdog”. Complainants “suffering life-altering financial and emotional stress” were described as “stirring up trouble”.
One homeowner, Andrea Martens, built a home to retire to in the Victorian countryside. Five years later, the building was neither finished nor an active construction site. She brought a detailed complaint to the VBA in 2020. It was 2021 before the VBA inspected the site. About another year passed before it began formally investigating. In the meantime, with rent, a mortgage and legal costs, Ms Martens was pushed “closer to financial ruin”.
The VBA’s response? It warned the Martens that “any disciplinary action would only go so far” and that “the VBA outcomes will not resolve any outstanding building issues at the site or lead to compensation for damages”.
B. The BPC: New Name, Same Problems?
The VBA has been replaced by the Building and Plumbing Commission (BPC). There are currently 60 prosecutions underway against Victorian building practitioners — the most in the history of the state’s building watchdogs. But prosecutions are reactive, not preventative. The system remains broken.
C. The Scale of the Problem
Thousands of buildings constructed by more than 170 Victorian builders who had potentially fraudulent licences are being checked for faults and safety concerns.
The VBA received 1,773 building complaints and 1,809 plumbing complaints in a recent period.
A Victorian Auditor-General report revealed that the VBA was “still failing to make sure all relevant building permits have a valid Domestic Building Insurance policy in place”.
The system is failing — and it is failing the most vulnerable hardest.
VI. The Knox Example: Bins Before Brains
Consider the case of Knox City Council. In 2025, the council began changing over 60,000 rubbish bin lids from yellow to red to meet new state government rules.
The cost? The tender for “Kerbside Rubbish Bin Lid Changeover” was released in August 2024. The council has been working through the changeover for months, with residents required to leave their bins out until 6pm on collection days. By July 2025, 86% of lids had been changed. Completion is scheduled for October 2026.
The cost of this exercise is not publicly itemised, but it is not zero. It involves contractors, logistics, and staff time. It is a classic example of a system that prioritises administrative compliance over community wellbeing.
Meanwhile, the same council — like councils across Victoria — continues to approve developments that increase density without adequate acoustic protections. It continues to outsource planning approvals. It continues to treat residents as ratepayers rather than as citizens.
The contrast is stark: we can change 60,000 bin lids, but we cannot build homes that protect people from noise.
VII. The Cost of Failure
The cost of this systemic failure is measured in more than dollars.
A. Health Costs
· Cognitive decline
· Impaired memory consolidation
· Cardiovascular disease
· Mental health impacts
B. Economic Costs
· Lost productivity
· Increased healthcare costs
· Reduced educational outcomes
· Higher rates of absenteeism
C. Social Costs
· Erosion of community
· Loss of local democracy
· Disconnection and isolation
· A population that is tired, distracted, and forgetful
The Freiburg study found that random sounds during sleep “impair the consolidation of new memories”. When we build noisy homes, we are not just annoying people. We are making them dumber.
VIII. The Way Forward
A. Acoustic Standards Must Be Enforced
The NCC sets standards. They must be enforced. Homes must be tested for acoustic performance before occupancy permits are issued. Developers must be held accountable for noise attenuation.
B. Planning Must Be De-Privatised
The outsourcing of building certification and planning approval has created conflicts of interest and reduced accountability. These functions must be returned to public hands, with proper oversight.
C. Councils Must Be Re-Democratised
The Kennett reforms stripped local government of its democratic character. Councils have become corporate entities. This must be reversed. Local government must be about community, not about profit.
D. Density Must Be Accompanied by Protection
Increased density is necessary. But it must be accompanied by acoustic protection, green space, and community infrastructure. Density without protection is just crowding.
E. Sleep Must Be Recognised as a Public Health Priority
Noise is not a nuisance. It is a public health crisis. Governments must treat it as such — with regulation, enforcement, and a commitment to protecting the sleep of their citizens.
IX. Conclusion: The Silence We Deserve
The Freiburg study is a warning. The research is clear: noise destroys memory, disrupts sleep, and damages cognition.
But the warning has been ignored. Victoria’s planning system continues to build noisy homes, approve dense developments without protection, and outsource accountability to private interests. Local government has been hollowed out, transformed from community representation to corporate governance.
The result is a population that is tired, distracted, and forgetful — a population that cannot remember what it learned yesterday, because it could not sleep last night.
This is not a conspiracy. It is the predictable outcome of short-term thinking.
But it can be fixed.
We need homes that protect sleep. We need councils that serve communities. We need a planning system that prioritises health over profit.
We need silence.
Not the silence of isolation. The silence of presence. The silence of peace. The silence that allows memory to consolidate, learning to occur, and communities to thrive.
Andrew Klein
The Patrician’s Watch | Australian Independent Media
References
1. Roüast, N.M., Kumral, D., Gais, S., & Schönauer, M. (2026). Random auditory stimulation during sleep disturbs traveling slow waves and declarative memory. iScience. DOI: 10.1016/j.isci.2026.116601.
2. Fausto, B.A., et al. (2025). Neighborhood Environment and Late-Life Cognition: Exploring the Mediating Effect of Sleep and Differential Pathways by Race. AJPM Focus, 5(1), 100435. DOI: 10.1016/j.focus.2025.100435.
3. Benz, S.L., et al. (2026). Impact of Noise from Heat Pumps on Sleep, Noise Annoyance, and Concentration in Healthy Adults in a Laboratory Setting. Noise and Health, 28(130), 232-249. DOI: 10.4103/nah.nah_147_24.
4. How ‘local’ was taken out of local government. (2026, February 22). The AIM Network.
5. Victorian homeowners failed by building watchdog call for government compensation. (2025, April 17). ABC News.
6. Scores of builders facing prosecution as new watchdog bares teeth. (2025, September 4). ABC News.
7. Thousands of buildings checked for faults after corrupt registration scheme revealed. (2026, February 5). WAtoday.
8. Knox City Council. (2025). Rubbish bin lids are changing.
9. Knox City Council. (2025). Together, we’ve changed 86% of bin lids.
10. Victorian Building Authority. (2025). Complaints statistics.
11. Victorian Auditor-General. (2025). Report on VBA failures.
12. Environmental noise and cognitive impairment. (2025). Read by QxMD.
13. Ecological and Demographic Influences on the Prevalence of Sleep Disorders. (2025). PubMed.
14. Structural and functional changes in the hippocampus induced by environmental exposures. (2025). NSJ.
15. National Construction Code. Acoustic Underlay Requirements in Victoria.
16. Victorian Planning Provisions. Noise influence area requirements.
17. Kennett government council amalgamations. (1993-1999).






