– Expert Witness

Lighting Expert Witness – Independent Evidence for Disputes

Lighting expert witness reports and independent evidence for lighting disputes – neighbour floodlighting, tennis courts, sports grounds, signage and planning permit compliance – for tribunals, courts and councils.

Discuss a matter

– what we do

Evidence based on measurement, not opinion

In a lighting dispute, the question a lighting expert witness answers is usually simple: does the lighting exceed what is allowed, and if so, by how much? An expert report answers it with measurements taken on site and assessed against the relevant standard, most often AS/NZS 4282, together with the planning permit conditions or any applicable code of practice. The expert’s duty is to the tribunal or court, not to the party paying for the report.

What a lighting expert witness report includes

Every report sets out what was measured, how it was measured, and how the results compare with the limits that apply. It covers:

  • the instructions received and the questions the report answers
  • the standard, environmental zone and limits applied
  • measured light levels and source intensities at the affected windows and boundaries
  • the calibrated instruments used (Hioki 3425 and Yokogawa 51001 lux meters; Konica Minolta LS-110 and Gossen MAVO-Spot luminance meters)
  • site photos and conditions at the time of testing
  • clear conclusions, and the practical measures that would bring the lighting into compliance where it falls short

Reports are prepared for VCAT, courts, councils and mediation.

– Testing Services

Lighting disputes we assess

AS/NZS 4282

Neighbour floodlighting

Spill light and glare into homes from security, car park and commercial lighting.

Homes, car parks, commercial sites

CODE OF PRACTICE

Private tennis courts

Court lighting assessed against the Private Tennis Court Development Code of Practice and AS/NZS 4282.

Residential and club courts

AS 2560 / AS/NZS 4282

Sports grounds

Club and council sports lighting affecting neighbours, including operating hours.

Ovals, pitches, courts, bowls greens

PERMIT LIMITS

Illuminated signage

Digital and illuminated signs measured against their permit luminance limits.

Billboards, pylons, digital screens

PLANNING PERMIT

Permit compliance

Whether installed lighting meets the conditions of its planning permit.

Councils, owners, objectors

PEER REVIEW

Report review

Independent review of another consultant’s lighting report or evidence.

Councils, lawyers, developers

Residential
Lighting expert witness measuring light spill at an upper-floor window at night
Sports
Lighting expert witness evidence: light spill measured beside a floodlit tennis court
Suburban
Expert lighting evidence: luminance reading of floodlights taken from the street at night
Industrial
Industrial Lighting Audit

– Why It Matters

Why independent evidence matters

Independence

No product sales or installation work, so no stake in the outcome

Measurement

Calibrated readings taken on site, at the times that matter

Clarity

Findings written for tribunal members and lawyers, not just engineers

Resolution

Practical fixes that can resolve a matter before a hearing

-FAQ

Frequently asked questions

An expert witness gives independent evidence on technical questions, such as whether lighting exceeds the limits that apply to it. The evidence is based on site measurements and the relevant standards, and the expert’s duty is to the tribunal or court.

When a lighting dispute is heading to VCAT, court or mediation, when a council needs an independent view on permit compliance, or when you need to respond to another party’s lighting report. See recent lighting compliance projects, including disputes and testing.

Readings are taken on site at night, at the affected windows and boundaries, with calibrated lux and luminance meters. Where it matters, they are taken both before and after curfew, because the limits change.

Most disputes are assessed against AS/NZS 4282, the standard for obtrusive light, together with the planning permit conditions. Private tennis courts are also assessed against the Private Tennis Court Development Code of Practice, and signage against its permit luminance limits.

Yes. A peer review checks the method, measurements and conclusions of another consultant’s report, and sets out where they hold up and where they don’t.

Site testing usually takes between one and six hours at night. Report timing depends on the matter and any tribunal deadlines, and is confirmed when instructions are received.

It depends on the number of locations, whether site testing is needed and whether attendance at a hearing is required. A fixed quote is given once the instructions are known.

– Coverage

Where we work

If you require lighting compliance testing, lux level verification or planning approval documentation anywhere in Victoria, our team can assist. Testing is also carried out interstate, with recent work in New South Wales.

Melbourne

Geelong

Gippsland

Ballarat

Mornington

Bendigo

Lighting Compliance Starts With Accurate Testing

Our independent assessments provide clear results

Speak to consultant
  • Lux meter on a footpath beside a car park
  • Handheld lux meter at night beside a floodlit court fence
  • Lux meter on a marker cone on a playing field
  • Lux meter on a velodrome track surface
Lux meter on a sports field during an independent lighting assessment
  • lighting consultant
  • Lighting Compliance Lux Testing
  • AS/NZS 4282:2023

Related Lighting Compliance Services

Related Reading:
For one of the most common disputes, read our article on tennis court lighting disputes.