Building Daylight Modeling (BDM)

Illuminate Spaces. Enhance Comfort. Design with Clarity.

  • Daylight analysis
  • Glare control
  • Visual comfort
  • Energy savings

Natural light can reach its greatest potential to increase occupant comfort and energy efficiency and design brighter, more sustainable environments with daylight modelling.

Optimize Performance

What is Daylight Modelling?

It replicates natural light to optimise window location, glass, and shading, increasing comfort, reducing glare, and creating efficient, uplifting environments year-round.

Daylight Model Report Output

Our Daylight Model Report provides rich visual and analytical insights utilising modern simulation tools like Radiance, DAYSIM, and ClimateStudio, offering clear images and metrics for evaluating light distribution, glare, and daylight performance efficiently.

  • Project Overview & Key Parameters
  • Annual Daylight Availability Map.
  • Spatial Daylight Autonomy (sDA) Visualisation
  • Annual Sunlight Exposure (ASE) Analysis.
  • Heatmaps: Daylight Glare Probability (DGP)
  • Useful Daylight Illuminance (UDI) Graphs.
  • Daylight Factor Contour Plots
  • 3D visualisation of the interior daylight distribution.

Our Approach: Climate-Based Daylight Modeling

We use the industry's most advanced daylight analysis technique, Climate-Based Daylight Modelling (CBDM), to assess daylight performance with real-world accuracy. CBDM, unlike static systems like Daylight Factor, which rely on a single overcast-sky scenario, utilizes hourly climatic data specific to your individual project area. This dynamic technique simulates sky conditions throughout the year, including clear skies, overcast periods, and changing sun angles.

Key CBDM Metrics We Provide

Metric What it Measures Why it Matters

Spatial Daylight Autonomy (sDA)

The percentage of floor area that meets a minimum daylight illuminance level (e.g., 300 lux) for a defined portion of the occupied year.

The percentage of floor area that meets a minimum daylight illuminance level (e.g., 300 lux) for a defined portion of the occupied year.

Annual Sunlight Exposure (ASE)

The percentage of floor area that receives too much direct sunlight (e.g., over 1,000 lux) for too many hours.

Helps you design effective shading devices to prevent glare and avoid unwanted solar heat gain

Daylight Glare Probability (DGP)

The likelihood that occupants will experience visual discomfort (glare) from high-luminance sources, such as windows.

Ensures occupant comfort and productivity, especially in workspaces and educational facilities.

Useful Daylight Illuminance (UDI)

The percentage of time illuminance falls within a comfortable and useful range (e.g., 100-2,000 lux).

Provides a holistic view of both light sufficiency and excessive light (glare risk).

The Power Behind Brighter, Smarter Spaces

Our daylight modelling services combine data-driven research with design knowledge to create bright, pleasant, and energy-efficient workplaces that inspire while increasing performance.

Visual comfort

Optimise light levels and eliminate glare to create balanced, pleasant environments.

Energy efficiency

Use natural light instead of artificial lighting and cooling.

Design validation

Compare daylight performance to improve façade and shading.

Sustainability compliance

Get LEED, WELL, and BREEAM daylight credits.

Occupant Well-being

Natural light can help you feel better, be healthier, and work more effectively.

Why Choose Us

What Makes Us Different

Trusted experience, a creative approach, and tailored solutions that promote long-term success.

  • Energy Reduction

    We maximise sunshine penetration while minimising glare, allowing daylight controls to dim or turn off lights, lowering energy consumption and cooling requirements.

  • Daylight Controls

    Our clever daylight-harvesting systems automatically manage lighting settings, resulting in increased energy efficiency, improved visual comfort, and lower operational costs.

  • Green Certification

    We provide comprehensive lighting analysis and documentation to help your project earn LEED, WELL, and BREEAM credits for sustainable certification.

  • Thermal Integration

    Our studies evaluate solar heat gain via windows to determine the best glazing and shading solutions for balancing daylight quality and interior comfort.

Tools We Use

Advanced Software for Daylight Analysis

Radiance
DAYSIM
ClimateStudio
DIVA for Rhino
Ladybug Tools

Key Benefits of Daylight Modelling for your project

Integrating daylight analysis early provides energy savings, occupant comfort, and long-term, high-performance design solutions.

Significant Energy Cost Reduction

Maximise natural light to reduce electric lighting requirements, energy expenses, and cooling loads.

Enhanced Occupant Well-Being

High-quality sunlight enhances mood and productivity and reduces eye strain, resulting in healthier indoor environments.

Risk mitigation (glare & overheating)

Before construction begins, identify problematic glare or overheating areas and incorporate cost-effective shading measures.

Accelerated Green Building Certification

Provide accurate data to easily earn LEED and WELL daylighting and visual comfort credits.

Optimised Facade Design

Adjust window-to-wall ratios, glazing characteristics, and shading devices to provide optimal light and thermal efficiency.

Let us spotlight your project's performance potential