Planning Stage

Design and Construction

Completion & Post Completion

Daylight and Sunlight Impact Assessments

Daylight and sunlight assessments help architects and planners understand how new buildings affect natural light for nearby properties, ensuring a balanced blend of modern construction and its environment.

The Circular Economy Approach
epc certificate bristol icon

Elmhurst Energy and ECMK Accredited Assessors.

epc certificate bristol icon

Services available nationwide. Fast-Track available.

epc certificate bristol icon

Save up-to 50% compared to private building control companies.

epc certificate bristol icon

48-hour turnaround from the site visit.

Understanding Daylight Factors

In building design, numerous considerations revolve around harnessing the power of natural light. These include the size of apertures, room depth, and the degree of sky visibility. These elements combine to determine the daylight factor, expressed as a percentage. A higher daylight factor signifies a higher level of illumination.

Designing for Sustainability

Importance of Daylight

Daylight, often referred to as ambient light, plays a pivotal role in enlivening indoor spaces from the break of dawn until sunset. It’s the essence of a well-illuminated, inviting environment that’s conducive to work or relaxation.

The findings from numerous research investigations indicate that exposure to both natural and artificial bright light, especially during the morning hours, can have a significant positive impact on various aspects of health.

These benefits encompass improvements in conditions such as depression, restlessness, sleep quality, the synchronisation of our internal body clock, and the management of seasonal affective disorder.

Get a Daylight and Sunlight Assessment Quote

Ready to get started? Contact Focus 360 Energy today for a comprehensive  Sustainability Statement quote. Our online system makes it easy to schedule an assessment, and our team of  Sustainability assessors will guide you through the process.

Download our Service Guide

Our handy easy-to-use guide to the multiple services you may need for each stage of your project.

Right to Light and Legal Protection

The ‘Right to Light’ concept is a legal safeguard that upholds the sanctity of natural light ingress through windows. It forms a shield for the precious resource, ensuring its protection when new structures threaten to diminish it. Right-to-light assessments include calculating the Vertical Sky Component and No Sky Line to gauge direct skylight access.

Overshadowing Reports

Overshadowing reports shed light on the impact of sunlight calculations. They unveil the dance of shadows cast by the sun throughout the year, offering insights crucial for understanding shading patterns in gardens and open spaces.

Solar Gain and Energy Efficiency

Solar gain, the harnessing of solar heat, plays a pivotal role in creating energy-efficient living spaces. The direct solar gain, especially in colder climates, offers a cost-effective method of heating, reducing reliance on artificial heating sources. In contrast, managing direct solar gain becomes paramount in sun-drenched locales to prevent overheating.

Sunlight Calculations and Shadowing

Sunlight calculations unveil the celestial paths of direct sunshine concerning a building. These calculations encompass a mosaic of sunpaths throughout the year, unveiling the shifting interplay of light and shadow. These assessments often accompany shadowing reports, enriching the understanding of lighting dynamics.

Circular Economy Statement

Importance of Daylight and Sunlight Assessments

Daylight and sunlight assessments are not just mandatory in the world of urban development; they’re critical. They address the impact of new construction on the light levels within the existing structures, anticipating objections, and reducing planning hiccups.

De-risking Planning and Energy Efficiency

The prudent inclusion of daylight and sunlight assessments early in the planning process is a masterstroke in de-risking projects and sculpting energy-efficient spaces. These assessments aren’t merely about illumination; they influence building heights, and glazing ratios, and, in the bigger picture, can mitigate objections from the community while ensuring well-lit spaces for future occupants.

Expert Assessment

Our team of building performance specialists harness the power of 3D modelling to scrutinise the impact of new developments. We weave seamlessly into the design process, following industry best practices and regulations, to manage daylight and sunlight within and around every building project.

Ready To Enquire?

We specialise in all aspects of energy efficiency. View our other services to see how we can help you elsewhere with your project.

Get Your Quote Today…

Ready to explore the benefits of Daylight and Sunlight Impact Assessments for your project?

Contact our experienced team of accredited assessors today to discuss how these assessments can enhance your development plans and ensure a harmonious blend of natural light in your surroundings.

Frequently Asked Questions

Why are Daylight and Sunlight Assessments essential?

These assessments are crucial for harmonising new constructions with their surroundings, ensuring that both neighbouring properties and the new building receive sufficient natural light.

What factors do Daylight and Sunlight Assessments consider?

These assessments take into account elements like building height, distance to boundaries, room size and shape, orientation, window placement, and material reflectance, among others.

How do Daylight and Sunlight Assessments influence planning?

These assessments can impact building heights and the ratio of glazing, influencing project design and costs. Early assessments can prevent objections and ensure good light levels for occupants.

Are there any guidelines for Daylight and Sunlight Assessments?

Yes, the Building Research Establishment (BRE) provides guidelines for these assessments, ensuring industry standards and best practices are followed.

What tools or software are used for these assessments?

Assessors typically use 3D modelling software to visualise and measure the impact of new constructions on natural light.

Can neighbours block planning permission due to light concerns?

Yes, if neighbours can prove that the development will adversely affect their daylight or sunlight, it could hinder planning permission.

How can Daylight and Sunlight Assessments enhance energy efficiency?

By optimising natural light, these assessments can reduce the need for artificial lighting, making buildings more energy-efficient.

View our Case Studies

Related Content

Legionella Risk Assessments
Legionella Risk Assessments
If you own or manage a property, Legionella Risk Assessments are important to help you identify any potential ...
What is a Commercial EPC?
What is a Commercial EPC?
A Commercial EPC (Energy Performance Certificate) is a document which provides information on the energy ...
Do I need a Commercial EPC?
Do I need a Commercial EPC?
If you are a commercial property or owner, you may have asked yourself, "Do I need a Commercial EPC?" Many ...