Commercial lighting design is a vital part of design process to create functional, efficient, and visually comfortable environments. Well-lit spaces enhance productivity, safety, and customer experience.
This commercial lighting design guide UK will walk you through everything you need to know before you have a lighting consultation, or embark on a new project, including lighting types, lux level standards, glare control, layouts, and smart lighting systems. Whether you're designing an office space, a retail unit, data centre, or hospitality venue, this guide will help you understand how to design commercial lighting effectively.
Commercial lighting design is the strategic planning and implementation of lighting and lighting systems in non-residential environments such as offices, retail stores, industrial facilities, and public buildings.
Good lighting design considers:
Functionality
Energy efficiency and sustainability
Visual comfort (reducing glare and eye strain)
Aesthetic appeal
Compliance with UK standards (e.g., BS EN 12464-1) and emergency lighting regulations (most notably BS 5266-1:2025)
Instrumental to achieving building certifications like BREEAM or WELL
Not all lighting is equal. Understanding the different lighting layers is key to successful lighting design for commercial spaces. The most frequently used approach is called the 3 Layer Approach. It is using:
The primary source of illumination providing overall visibility.
Focused lighting for specific activities, allowing people to carry out specific tasks.
Enhances or highlights architecture. It can be a part of joinery or decorative fittings adding extra layer of light into the space.
Examples: Desk lamps, under-cabinet lighting
Used in: Retail displays, office spaces
Office Lighting and commercial lighting need to meet certain guidelines when delivering a project. The unit light is measured in, is Lux. The Lux levels measure how much light is delivered to a surface. This part of the lighting design is also known as light calculations. It is carried out using a software, most commonly DIALux. Following correct levels is essential for compliance and comfort.
Recommended Lux Levels:
When designing lighting for commercial spaces, it is important to understand that spaces need to achieve correct levels to be compliant.
Offices (general): 300–500 lux
Detailed office work: 500–750 lux
Retail spaces: 300–1000 lux
Warehouses: 100–300 lux
Corridors: 100–200 lux
These are referred to as horizontal illuminance levels. These recommendations align with UK standards such as BS EN 12464-1: 2021, forming a core part of any commercial lighting design guide UK. There are situations, when additional lighting is required. Illuminance might have to be adjusted depending on the factors like:
Age of occupants
Task contrast
Accuracy requirements
Duration of task
Glare is one of the most common issues when it comes to office lighting. It causes eye strain, headaches, and fatigue, reducing employee productivity and comfort. It creates excessive brightness contrasts or reflections on computer screens, causing workers to adopt poor postures as they try to view their screens.
Glare is measured in UGR (Unified Glare Rating). This rating measures how likely a light source is to cause discomfort glare.
Offices: UGR < 19
Industrial areas: UGR < 22–25
Retail: Depends on design intent
Use low-glare luminaires
Position lights correctly (avoid direct line of sight)
Incorporate micro prismatic diffusers or prismatic lenses in offices
Use indirect lighting where possible
Effective glare control is essential in office lighting design, where visual comfort directly impacts productivity. Specifiers and designers need to be aware the UGR rating is not a fixed property of a single fitting. The glare rating depends entirely on the installation — the room, surfaces, spacing, angles, even the viewer’s position. It is calculated for the entire installation in DIALux.
Lighting layout design determines how light fittings are arranged in a specific space to ensure uniformity and efficiency. There are different approaches when it comes to creating lighting layouts for CAT A and CAT B fit out scenarios.
Even light distribution as the furniture and space layout is unknown
Avoid over-lighting or dark spots
Consider ceiling height and room dimensions
Align lighting with speculative workspace layout into grids
Specific light distribution for workstations, breakout zones, quiet areas
Consider ceiling height and room dimensions in more detail
Lighting designed to suit specific needs of a client
Grid layout (offices, retail)
Linear layout (corridors, warehouses)
Feature-focused layout (hospitality, retail displays)
A well-planned layout is fundamental when learning how to design commercial lighting.
Modern commercial lighting design increasingly utilises intelligent control systems. Controlling light is not a nice to have anymore. With buildings aiming to achieve higher sustainability credentials, it is becoming a standard requirement in modern workplace. There are several types of lighting control systems, DALI system being the most used in commercial environments. When specifying lighting systems, it is important to ensure that selected lighting is compatible with lighting controls.
Enables Individual fixture control
Scene setting capability
Energy-efficient operation
Ideal for offices and large buildings
Motion sensors (occupancy detection)
Daylight sensors only uses lighting when it is necessary
App or cloud-based control
Smooth integration with building management systems
Benefits of integrating lighting controls into your project:
Reduced energy costs
Increased flexibility
Improved user experience
Different industries require tailored lighting design for commercial spaces. There is a huge difference when designing office space, a data centre or retail space for example.
Focus on comfort, flexibility and productivity
High visual comfort and low glare (UGR < 19)
Even illumination
Adjustable lighting and more user control is required
High contrast and accent lighting to create inspiring spaces
Highlight products
Create an inviting atmosphere and experience
High-output, durable fixtures with low maintenance
Focus on safety and visibility
Energy-efficient high bays
Warm, inviting tones
Layered lighting design
Strong emphasis on aesthetics
In the UK, commercial lighting must meet energy regulations such as:
Part L Building Regulations
Use of LED technology is a norm
Efficient control systems
Energy-efficient lighting reduces operational costs and environmental impact—making it a critical part of any lighting design guide UK.
Balancing functionality, comfort, and energy efficiency is key.
It depends on the task being performed. The latest lighting standard BS EN 12464-1: 2021 contains the table with lux levels for each specific area in commercial environment.
UGR measures glare. Lower values mean more comfortable lighting.
Yes, especially for larger projects where control, flexibility, and energy savings are important.
Use LED fixtures, install motion sensors, and implement smart lighting controls.
Conclusion
A well-planned commercial lighting design improves productivity, enhances aesthetics, and reduces energy costs. By understanding lighting types, lux levels, glare control, layouts, and smart systems, you can create effective lighting solutions for any commercial environment.
If you're planning a project and need expert advice, investing in a professional commercial lighting design guide UK approach will ensure compliance, efficiency, and long-term success.