Updated 4 November 2026
CM Law’s Ultimate List: The top 50 FAQs on Buying a Residential Investment Property #18: Noise Levels
Noise is a practical due diligence issue when buying a NSW investment property. Investigate what tenants will hear, when it occurs and whether realistic improvements are possible. Check planning records, strata approvals and complaint history before committing. Neither a quiet inspection nor a proposed soundproofing package guarantees tenant retention or investment returns.
Can noise affect rent, tenant retention and property value?
Noise can influence how prospective tenants and buyers assess a property, but there is no universal rental discount or resale penalty. Exposure, layout, location benefits and individual preferences all matter. Assess the particular property against comparable local options rather than applying a fixed percentage adjustment simply because a road or venue is nearby.
Ask the managing agent for evidence supporting the proposed rent, including comparable properties with similar exposure. Review available vacancy and tenancy history, while recognising that departures can have several causes. Transport access and nearby services may be attractive even where some noise is present. Budget using a supportable rent, not an assumed premium from future acoustic upgrades.
How should you check noise before buying?
Inspect at different times, including periods when nearby activities are busiest. Listen inside bedrooms and living areas, as well as outside, with windows open and closed. A short daytime viewing can miss evening entertainment, early deliveries, building services and the sound of movement through adjoining apartments or shared corridors.
The Australian Government’s YourHome noise guide recommends assessing the property under different conditions. Note the source, timing and rooms affected. Include roads, trains, aircraft, loading areas, ventilation equipment, lifts and garage doors. Ask about recurring noise that was absent during your visit.
If noise could change your decision, obtain advice from an acoustic consultant before exchange. Ask what measurements are appropriate for the source and the intended assessment. The EPA’s approved measurement methods show why equipment, method and professional competence matter. A phone app reading should not be treated as a substitute for a properly scoped acoustic assessment.
Which records should you review before exchange?
Combine physical inspections with written enquiries and records. Check nearby development proposals and approval conditions, and obtain relevant strata documents for an apartment. Ask about previous complaints, acoustic reports and alterations. Records can identify issues that a viewing misses, but an absence of recorded complaints is not proof that a property is quiet.
Use the NSW planning information service to check zoning and planning controls, then seek relevant development records from the council or consent authority. A planning map does not measure sound inside the home. Investigate proposed construction, operating hours and servicing arrangements where they could affect occupation.
For strata, review minutes, correspondence, by-laws, renovation approvals and any acoustic testing. NSW strata by-laws guidance explains that schemes have their own rules. Obtain the actual registered by-laws rather than assuming every building uses the model wording. Ask whether outstanding complaints or remedial works could involve costs after purchase.
What can aircraft noise maps tell you?
Aircraft noise information is useful, but maps and a single visit cannot predict every experience at an address. Flight paths and runway use can vary with operational and weather conditions. Check the relevant airport’s current information and future plans, and investigate the property under more than one set of conditions.
Airservices’ guidance for home buyers explains flight path corridors, aircraft tracking information and airport planning material. Australian Noise Exposure Forecast maps support planning decisions; they are not a promise of silence outside a contour. Consider the frequency and timing of flights as well as mapped exposure, particularly where bedrooms or outdoor areas face the affected direction.
Which NSW noise rules apply?
Different rules apply to different noise sources. State environmental legislation, approval conditions, local enforcement powers and strata by-laws can all be relevant. There is no single decibel limit or universal set of quiet hours covering every situation. Identify the source and applicable rules before assuming that audible noise is unlawful.
The Noise Control Regulation 2026 replaced the 2017 Regulation on 28 August 2026. It supplements the Protection of the Environment Operations Act 1997 with controls for specified neighbourhood, vehicle and vessel noise. Check current requirements rather than relying on an old timetable.
Offensive noise is assessed in context, including its nature, level and timing and its harmful or unreasonable effects. Time restrictions for specified equipment are separate controls; being outside those hours does not automatically authorise offensive noise. Construction hours may also depend on the particular approval or project requirements.
Does quiet enjoyment require a landlord to guarantee silence?
A tenant’s right to quiet enjoyment does not mean a property must be completely silent. It protects the tenant against prohibited interference with their use of the premises. A landlord’s responsibilities depend on the source, control and circumstances of the disturbance, so a complaint requires investigation rather than an automatic assumption about liability.
Section 50 of the Residential Tenancies Act 2010 protects tenants against interference by the landlord and others covered by the provision. Landlords and agents must respect the tenant’s reasonable peace, comfort and privacy. They must also take all reasonable steps to address interference caused by their own tenants in neighbouring premises. Obtain advice about the particular problem and any repair, tenancy or strata obligations. External traffic noise and noise caused by your own works raise different issues.
What does a real flooring dispute show property buyers?
In The Owners – Strata Plan No 7704 v Kim [2023] NSWCATCD 39, NCAT ordered the current apartment owner to treat flooring installed by a previous owner. The decision shows why buyers should examine renovation approvals and acoustic evidence, rather than assuming an attractive new floor has met the scheme’s requirements.
The previous owner of a Meadowbank apartment obtained approval for laminate flooring with a specified acoustic rating. After installation, neighbours below complained. Testing in the building showed that the installed floor did not achieve the approved rating. Although NCAT did not find the alleged noise by-law breaches or statutory nuisance established, it found that the renovation did not comply with the approval conditions.
The current owner was ordered to cover or treat specified areas within 56 days. For investors, the lesson is to obtain the approval, conditions and any post-installation testing before purchase. This decision concerned particular evidence and approval conditions; it does not guarantee that every noise complaint will succeed.
Which noise reduction works are worth investigating?
Choose improvements after identifying how sound enters or travels through the building. The appropriate response to airborne traffic noise may differ from the response to footsteps through a floor. Obtain a property-specific assessment, a clear scope and quotations before treating any advertised product as a complete solution to the problem.
YourHome’s glazing guidance explains that glass configuration, gaps and seals affect acoustic performance. Double glazing alone does not describe the performance of an entire window installation. If effective noise control requires closed windows, consider ventilation and cooling. Ordinary residential hedges should not be relied on as physical sound barriers.
Before altering windows, floors or common property, check the strata renovation approval requirements, the scheme’s by-laws and any planning constraints. Specify the required installed performance and how it will be verified. Keep approvals, product specifications and test reports for future management and sale. Acoustic expenditure does not guarantee an equivalent increase in rent or value.
How should you respond when a tenant complains?
Acknowledge the concern, ask for specific details and investigate the source promptly. Record when the noise occurs, its duration and how it affects the premises. Agree on the next step and keep the tenant informed. Clear records help distinguish an occasional disturbance from a recurring issue requiring repairs, enforcement or specialist assessment.
Use the EPA’s noise contacts guide to identify the responsible authority. Local councils and police generally handle neighbourhood noise; Liquor & Gaming NSW leads entertainment-related noise complaints about liquor-licensed premises. For apartment disputes, the NSW strata noise guidance explains raising concerns with the owners corporation and available dispute resolution pathways.
Describe the property accurately when advertising and avoid promising that it is silent or fully soundproof. Before purchasing, allow for investigation, approvals, works and any vacancy while work is completed. CM Lawyers can assist with buying a property in NSW and legal issues arising from your enquiries. Contact Christine Manolakos and the team on (02) 9557 9000 or lawyers@cmlaw.com.au.
This article provides general information about NSW law and property considerations. It is not a substitute for legal advice about your circumstances or professional acoustic advice.
Key resources
YourHome — Noise control — Inspection, sound transmission and mitigation principles.
YourHome — Glazing — Window design, installation and acoustic performance.
Airservices — Aircraft noise when buying a home — Flight paths, tracking information and planning tools.
Service NSW — Planning information about a property — Access to zoning and planning information.
NSW EPA — Approved noise measurement methods — Formal measurement and assessment requirements.
NSW EPA — Noise Control Regulation 2026 — Current noise control framework. 2026 changes.
NSW EPA — Preventing neighbourhood noise — Offensive noise and restricted hours.
Residential Tenancies Act 2010, section 50 — Quiet enjoyment and landlord obligations.
NSW Government — Strata by-laws — Scheme rules and access to registered by-laws.
NSW Government — Strata renovation rules — Approvals for flooring, windows and other work.
The Owners – Strata Plan No 7704 v Kim [2023] NSWCATCD 39 — Flooring approval conditions and remedial work.
NSW EPA — Contacts for noise pollution — Finding the responsible regulator.
NSW Government — Noise in strata — Complaints and dispute resolution.
CM Lawyers — Property contract reviews and fees — Have the contract reviewed before you sign or bid.
