Lighting Impact Assessment for a Car Park or Sports Ground

Often, yes. Councils commonly ask for a lighting impact assessment for a car park or sporting facility when it will be lit at night near homes, roads or sensitive habitat. The requirement usually appears as a planning permit condition that refers to AS/NZS 4282, the Australian Standard for the obtrusive effects of outdoor lighting.

Lighting impact assessment for a car park: night-time lux survey with a measuring wheel

Why car parks and stadiums attract the condition

Both use high-output lighting on tall poles, often for long hours, and both are frequently built beside housing. That combination makes light spill into neighbouring windows, glare and sky glow likely unless the lighting is carefully designed and controlled.

What a lighting impact assessment for a car park or stadium covers

First, the lighting has to do its job. A car park is designed to a lighting category under AS/NZS 1158.3.1, and a sports field to the level of play under AS 2560. Then the assessment checks what reaches the neighbours: vertical illuminance at their windows, the intensity of each light source as seen from their property, and the upward light that contributes to sky glow. These are compared with the AS/NZS 4282 limits for the site’s environmental zone, both before and after curfew. Near bushland or waterways, the National Light Pollution Guidelines for Wildlife may also apply.

Car parks

The usual tension is between safety and spill. Pole height, optics with a sharp cut-off, careful positioning along boundaries and dimming after hours all help keep the car park safe without lighting up the houses next door. A lighting impact assessment for a car park tests these choices against the limits before anything is built.

Stadiums and sports grounds

Sports lighting is aimed high and bright, so glare is the main risk. Training and competition levels differ, and so can the permitted operating hours. An assessment shows which configurations stay within the limits, which is far easier to settle before the poles go in.

Aerial view of a floodlit sports field at night

What you need to provide

For a lighting impact assessment for a car park, the useful starting point is the site plan, the lighting layout with pole positions and mounting heights, the luminaire schedule and photometric (IES) files, and the planning permit conditions. For a stadium or sports ground, add the levels of play and the hours the lighting will run. For what affects the price, see light spill assessment cost.

The more complete the information, the quicker the assessment can be finished and the fewer assumptions it has to rely on. Where photometric files aren’t available, typical products can be modelled and confirmed once the final selection is made.

When to do it

At design stage, before the layout is locked in, so the planning submission shows compliance on paper. Then, if the permit requires it, a lux test after installation confirms the installed result. See what councils expect in a light spill report.

Frequently Asked Questions

It depends on the permit and the setting. A small car park next to houses can be more sensitive than a large one in an industrial area. If the permit condition asks for one, it is needed regardless of size.

The standard sets stricter limits for the curfew period late at night. The curfew time itself is usually set by the planning permit or the relevant authority.

Yes. Installed lighting is measured on site at night, at the affected windows and boundaries, and compared with the limits that apply.

An independent lighting consultant familiar with AS/NZS 4282, photometric modelling and the planning process. Independence matters, because the assessor has no interest in selling lighting.