Independent Dark Sky assessments to support planning applications, development design, and environmental stewardship.
MES Building Solutions provides independent Dark Sky and external lighting assessments for developments across the UK. Our advice supports planning approval, protects sensitive night-time environments, and helps project teams manage artificial lighting impacts at all stages of design.
We assess existing and proposed lighting conditions to understand potential effects on night skies, ecology, visual amenity, and surrounding receptors. Our assessments are proportionate, technically robust, and aligned with planning policy expectations, supporting informed decision-making and efficient scheme progression.
With specialist experience across rural, edge-of-settlement, and environmentally sensitive sites, we help developers and design teams identify constraints early. Our clear, well-structured reports are suitable for planning submissions and professional review.

Dark Sky Expertise
Specialist assessments informed by recognised lighting and environmental best practice
Development-Led Advice
Practical guidance that balances environmental protection with functional lighting needs
Robust Technical Analysis
Clear, evidence-based assessment of night-time lighting impacts
Planning-Ready Reporting
Reports suitable for planning applications, discharge of conditions, and professional review
When a Dark Sky Assessment is Needed
Dark Sky considerations are increasingly important within the planning process, particularly where development has the potential to introduce or intensify artificial lighting in sensitive locations.
Early assessment helps reduce planning risk, avoid costly redesign, and demonstrate a responsible approach to environmental impact.
Our Dark Sky Assessment Process
01
Initial Review
Early appraisal of site context, planning requirements, and lighting sensitivity
02
Technical Analysis
Assessment of existing conditions and proposed lighting arrangements
03
Reporting & Advice
Clear findings with proportionate mitigation and design recommendations
04
Ongoing Project Support
Continued advice as lighting designs develop or planning progresses

What Our Assessments Cover
Our Dark Sky and external lighting assessments include:
Related Dark Sky Services
Additional services and guidance on the topic:
