Installed lighting does not always perform as intended. In many projects, systems that appear compliant during design or procurement reveal problems only after commissioning or during early operation. Light levels may fall short of requirements. Glare may affect occupants or neighbouring properties. Energy use may exceed expectations.
Non-compliant lighting can be an issue in commercial buildings, infrastructure and public space. As systems get more complex and expectations rise, small gaps between design, installation and verification can turn into real-world problems. The fastest path to resolution is usually independent measurement and clear documentation, so decisions are based on evidence rather than opinion.
Based in Auckland and working New Zealand wide, Leading Design Professionals (LDP) supports project teams with independent diagnosis, practical options and clear documentation so lighting remediation is technically defensible and proportionate to the issue at hand.
In a hurry – direct answers
- Non-compliant lighting usually means the installed system does not meet the agreed design criteria, relevant standards, or consent conditions when measured on site.
- Typical symptoms include low or patchy light levels, excessive spill or glare beyond the intended area, and controls that do not operate as designed.
- Start by confirming what requirement applies – the latest drawings/specification, any modelling assumptions, and any consent or asset owner conditions.
- Use independent on-site Lighting surveys and measurements to record illuminance, uniformity, and where relevant, glare and spill at sensitive boundaries.
- Do not assume product data equals installed performance. Mounting height, aiming, spacing, and control settings can materially change outcomes.
- Remediation is often targeted: re-aiming, control reprogramming, shielding, or selective fitting changes, rather than full replacement.
- Document the before-and-after results so you can close out complaints, hand over confidently, and respond to council or stakeholder queries.
- To scope quickly, send plans + site address + a short note on what is not working.
What does non-compliant lighting mean?
Non-compliant lighting is lighting that does not achieve the required performance for its context when measured under real operating conditions. The ‘required’ performance might come from the project brief, an applicable standard, asset owner requirements, or specific consent conditions.
Requirements vary by project and location. The first step is always to confirm what criteria apply to your site, and how compliance is meant to be demonstrated.
Common symptoms of non-compliant lighting
Non-compliant lighting rarely appears as an obvious failure. In most cases the installation appears functional, yet performance does not align with requirements outlined in design documentation, regulatory standards, or consent conditions.
These issues often become visible only after occupation, commissioning, or public use. Complaints from occupants, neighbouring properties, or facility managers may be the first sign that a system is not performing as intended.
Light levels that do not meet design or regulatory requirements
A common indicator is when measured illuminance levels differ from what was specified in the design or fall short of an applicable requirement. Workspaces may feel dim or uneven despite lights operating at full output. In public environments such as walkways or roads, insufficient light can affect visibility and perceived safety.
Independent surveys often reveal that actual illuminance or uniformity sits outside the parameters that were originally modelled or required.
Excessive light spill or glare
Another common symptom is light affecting areas beyond its designated zone. Exterior lighting can spill into neighbouring properties or environmentally sensitive spaces. In urban developments, landscape lighting may create visual intrusion that was not anticipated during planning stages.
Glare can also become a concern. More than just visual discomfort, glare can be harmful for nearby occupants, pedestrians or visitors. These effects can indicate that installation conditions differ from what was assumed during modelling.
Controls that do not match the intended lighting strategy
Lighting performance is not solely determined by hardware. Timer settings, sensor calibration and schedules affect how lighting operates in practice, including light levels, spill and operating hours.
If control strategies stray from design documentation or consent conditions, the installed system may operate outside the intended compliance framework.
Diagnosing performance and compliance issues
When lighting performance fails to meet expectations, the first step is establishing an evidence-based understanding of what has been installed and how it performs under real operating conditions. Identifying the gap between the two is key, and diagnosis usually involves independent measurement and technical review.
A practical diagnosis process typically includes:
- Confirm what requirements apply (project brief, latest drawings/specification, relevant standard(s), and any consent conditions).
- Confirm the operating conditions that matter (time of night, control settings, scenes, sensors, and typical usage).
- Undertake on-site measurement at agreed locations and boundaries, and record observations and control settings.
- Compare measured results to the agreed criteria and identify likely drivers (mounting heights, aiming, spacing, shielding, substitutions, reflectance and controls).
- Define remediation options and what needs to be updated or re-verified to close out the issue.
In New Zealand, lighting is assessed against different frameworks depending on the context. For example, road lighting is often assessed against AS/NZS 1158, and obtrusive light controls are often assessed using AS 4282. Consent conditions or asset owner requirements may also set project-specific limits.
Issues do not always boil down to non-compliance. In some cases, problems arise because assumptions made during modelling no longer reflect the real installed conditions. Luminaire types may have been substituted during procurement. Mounting heights may differ from the original design. Each small variation can compound into meaningful performance change. Independent diagnosis helps trace the link between design intent and measurable outcomes.
Stage guide: diagnosing and fixing non-compliant lighting
| Project stage or scenario | What is needed | Why it matters | Typical outputs |
|---|---|---|---|
| Suspected issue or complaint | Desktop review of available documentation (drawings, specifications, model outputs) and any consent or asset owner conditions. Agree what should be measured and under what operating conditions. | Avoids measuring the wrong thing and keeps the response focused on the criteria that actually apply. | Scope note, measurement plan, and a clear list of missing information. |
| Site diagnosis | Independent on-site measurement and observations under agreed conditions (including control settings). | Creates a defensible baseline and separates performance gaps from opinions or assumptions. | Measured results table, photos/site notes, and a summary comparison to the criteria. |
| Root cause identification | Check the as-built installation and controls against the documented design and assumptions (mounting heights, aiming, shielding, substitutions). | Targets remediation to the actual cause and reduces the risk of repeat rework. | Gap analysis, marked-up drawings, and control settings/commissioning notes. |
| Remediation design and documentation | Develop options that are proportionate (controls adjustments, re-aiming, shielding, selective fitting changes, or spacing changes). Update modelling if required and coordinate with stakeholders. | Supports cost control and programme certainty, and provides a clear basis for sign-off. | Options memo, updated design notes, and contractor-ready instructions. |
| Verification and close-out | Post-remediation verification where required and clear close-out documentation for handover, stakeholders, or council queries. | Confirms the fix worked under real conditions and reduces ongoing complaint risk. | Close-out summary/report and any updated O&M or operational notes. |
Next step
If you need to diagnose a non-compliant lighting issue quickly, send your plans and site address. We will confirm what criteria apply, what should be measured, and the fastest path to practical lighting remediation.
Developing practical lighting remediation options
Once the root cause is understood, the next step is developing a plan that restores performance in a way that is technically effective and proportionate to the problem. Lighting remediation does not always require mass-scale replacement of components. In some situations, subtle adjustments can materially improve performance.
Depending on what the diagnosis shows, remediation may include:
- Control reprogramming (timers, sensors, scenes, dimming profiles) to match the intended strategy and any consent conditions.
- Aiming and shielding adjustments to reduce glare and spill without over-correcting light levels.
- Selective fitting changes where substitutions or specification changes have contributed to the issue.
- Revised spacing or additional luminaires where minimum levels or uniformity cannot be achieved through adjustment alone.
Whatever solution is deemed necessary, the key is measured evidence rather than assumptions. When changes are documented and supported by independent analysis, the resulting solution is easier to justify to stakeholders and consent authorities.
Common mistakes that make non-compliance harder to fix
- Treating complaints as subjective without establishing a measured baseline.
- Assuming a lighting model guarantees installed performance without checking as-built conditions.
- Changing luminaire types, optics, mounting heights or aiming without revisiting assumptions and criteria.
- Tweaking controls without recording settings or confirming how the system operates over time.
- Going straight to full replacement before trying targeted adjustments and confirming the root cause.
- Not re-verifying after changes, leaving the issue unresolved.
What you receive>
Depending on your site and scope, you typically receive:
- Scope confirmation (what will be assessed, what criteria will be used, and any assumptions).
- On-site measurement results and observations (including agreed measurement points and operating conditions).
- Comparison against the agreed requirements (design criteria, standard(s), or consent conditions provided).
- Root cause diagnosis (design vs as-built vs controls).
- Practical lighting remediation options, including trade-offs and what needs to be updated or re-verified.
- Remediation documentation for your contractor or project team (marked-up plans and notes, updated schedules where required).
- Optional post-remediation verification and a short close-out summary for stakeholders.
Scope notes (so there are no surprises):
- Verification results depend on agreed test conditions (for example, time of night, weather, luminaire settings and access).
- Council rules and consent conditions vary by location and by project. Compliance should be checked against the specific approvals and requirements that apply.
- If third-party acceptance criteria apply (for example, asset owner requirements or contractual performance criteria), provide them early and confirm them in writing.
- LDP can support compliance evidence and reporting, but any formal approvals or sign-off sit with the relevant consent authority or asset owner.
What we need from you to scope this quickly
- Site address and a short description of the issue (what is happening, where, when, and who is affected).
- Access constraints (working hours, safety inductions, roof access, shutdown windows).
- Latest lighting drawings/layouts, including mounting heights and any issued specifications.
- Luminaire schedule and product data for installed fittings, plus any substitution records.
- Control strategy and current settings (timers, sensors, scenes, dimming profiles).
- Any design criteria, standard(s), consent conditions, or asset owner requirements that apply to this site.
- Photos or videos of the issue, plus any complaint correspondence or site logs.
FAQs
What is non-compliant lighting?
Non-compliant lighting is lighting that does not meet the required performance for its context when tested under real operating conditions. The requirement may come from your design criteria, a relevant standard, asset owner requirements, or consent conditions.
Do you need a site visit to confirm non-compliance?
Usually, yes. Modelling and product data are useful, but they do not confirm installed performance. Independent on-site measurement is the most defensible way to confirm what is happening and why.
What do Lighting surveys and measurements cover?
Surveys typically record illuminance and uniformity, and where relevant, glare and spill at sensitive boundaries. The exact scope depends on what criteria apply and what issue you are trying to resolve.
Can lighting controls cause non-compliance even if the fittings are correct?
Yes. Timer settings, sensor calibration, dimming profiles and operating schedules can change light levels, spill and operating hours. Controls should be checked against the intended strategy and any consent conditions.
Does non-compliant lighting always mean replacing fittings?
Not always. Many issues can be resolved through targeted changes such as control adjustments, re-aiming, shielding, or selective fitting changes. Replacement or additional luminaires may be required where the underlying design or installation cannot meet the criteria.
Which standards apply in New Zealand?
It depends on the context. For example, road lighting is often assessed against AS/NZS 1158 and obtrusive light is often assessed using AS 4282. Project-specific consent conditions or asset owner requirements may also apply.
Can you support council queries or consent condition close-out?
Yes, where lighting evidence is required we can provide measured results, a clear comparison to the applicable criteria, and documentation that supports decision-making. Council requirements and processes vary, so the scope should be confirmed for your site.
What is the quickest way to get an accurate scope and fee?
Send the items in the checklist above (plans, site address, criteria, and a short description of the issue). With that information we can usually confirm what needs to be measured and what level of reporting is appropriate.
Next step – choose your path
If you are dealing with suspected non-compliant lighting, the earlier you establish the facts, the easier it is to resolve. A measured baseline and clear criteria reduce rework, reduce stakeholder friction, and help protect programme and cost.
- Send plans + site address: include the checklist above and we will confirm the best next step.
- Book a short scoping call: align on criteria, access, and what a defensible diagnosis process looks like.
- Request a proposal: end-to-end support from diagnosis through to remediation documentation and (where required) verification.
