Daylight & sunlight report
- Fixed price
The short answer
Impact assessment for planning
- Price from
- £800.00
- Time on site
- 1 to 2 hours (for data collection, report is office-based)
What you get
You receive a comprehensive report with analysis, calculations, and visualisations detailing the impact on daylight and sunlight levels, usually in line with BRE guidelines.
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When do you need a Daylight & sunlight report?
You need a Daylight and Sunlight Report when submitting a planning application for a new development, extension, or alteration that could affect the natural light received by adjacent properties or the proposed building itself.
What happens on the day
A surveyor may visit the site to take measurements, photographs, and assess the context of the proposed development and surrounding buildings. The majority of the work involves detailed computer modelling and analysis back in the office.
How to prepare
- Provide full architectural drawings of the proposed development.
- Supply site plans showing the relationship to neighbouring properties.
- Indicate any specific concerns regarding light for your project or neighbours.
- Grant access for external site assessment, if required.
- Highlight any existing light-sensitive areas or features.
How to improve your result
- Consider the orientation and massing of your development to maximise natural light.
- Design with appropriate window sizes and layouts for optimal daylighting.
- Utilise light-coloured materials on external surfaces to reflect light.
- Explore options for reducing overshadowing on adjacent properties.
- Incorporate light wells or rooflights where applicable.
Why it is useful day to day
A well-executed report can strengthen your planning application by proactively addressing potential light concerns. It demonstrates a considerate approach to development, easing the planning process and neighbour relations.
Why we ask these questions
We ask for full details of your proposed development, including plans and elevations, and information on neighbouring properties. This helps us accurately model the potential impact on light conditions.
Frequently asked questions
Often needed alongside
Full architectural service
Concept to completion
Planning consultant
Strategy, appeals, pre-apps
- Legal requirement
Planning application
Prepare and submit
Planning appeal
Appeal a refusal
- Legal requirement
Structural calculations
Beams, walls removed, loft floors
- Legal requirement
CDM principal designer
Health & safety duties on projects
Cost plan & quantity surveying
Estimates, tenders, valuations