What Is Lighting Mitigation and Why Might Your Development Need It?

Lighting is often considered relatively late in a development, but where a site is close to sensitive habitats, protected species, neighboring properties or naturally dark areas, the impact of artificial light can become an important part of the planning process.

This is where lighting mitigation comes in.

What does lighting mitigation mean?

Lighting mitigation is the process of designing, adapting or controlling artificial lighting to reduce its potential impact on the surrounding environment, it isn’t necessarily about removing lighting.

It’s about putting the right light, in the right place, at the right time, and keeping it away from where it isn’t needed.

Depending on the site, mitigation measures might include controlling light spill, reconsidering luminaire positions or mounting heights, protecting dark corridors and habitat boundaries, introducing appropriate lighting controls or reducing unnecessary illumination. The appropriate solution will always depend on the individual project.

Why is it important for planning?

Artificial light can affect much more than our ability to see, poorly considered exterior lighting can affect wildlife and habitats, contribute to sky glow, cause nuisance to neighboring properties and alter the character of naturally dark environments.

On ecologically sensitive developments, lighting may therefore need to be considered alongside the ecological assessment rather than treated simply as an electrical or architectural specification.

A planning authority may also impose conditions requiring a lighting strategy or evidence demonstrating how the proposed lighting will avoid or minimise environmental impacts. If a lighting strategy is required, this is something we can provide at Circalume.

Lighting and ecology

This is particularly important where bats or other light-sensitive species are present.

Features such as hedgerows, tree lines, woodland edges and established flight routes can be important for foraging and movement. A development may require lighting for entrances, paths, parking areas or security while simultaneously needing to retain darkness elsewhere.

That’s where lighting design and ecological requirements need to work together. The objective isn’t simply to make the development darker, It’s to provide the lighting people genuinely need without unnecessarily illuminating the environment around them.

Mitigation should influence the design, not be added afterwards

One of the biggest advantages of considering lighting mitigation early is that potential conflicts can often be designed out, waiting until luminaires have been selected and positioned can make mitigation considerably more difficult.

Early collaboration between the architect, landscape designer, ecologist and lighting designer allows lighting requirements and environmental constraints to be considered as part of the same design process.

That can mean fewer compromises later, and a clearer route through planning.

Good lighting isn’t just about where the light goes

Sometimes the most important part of a lighting design is where the light doesn’t go.

At Circalume, we approach lighting as part of the wider environment, considering the needs of people, planning, ecology and the surrounding landscape.

Designing light with purpose.