Common questions about daylight & sunlight
Do I need a daylight assessment for a single-story extension?
A daylight assessment isn’t always mandatory for a single-storey extension in the UK, but it’s often recommended to avoid planning issues. Local authorities may request evidence, so getting a professional daylight and sunlight assessment ensures compliance and strengthens your application.
What if the assessment shows a loss of light?
The report will typically propose mitigation strategies, such as adjusting building height, repositioning or resizing windows, or reshaping the overall massing to improve natural light access, ensure stronger compliance with daylight standards, and reduce the risk of planning refusal overall.
Can a neighbor object to my building plans?
Yes. A neighbour can object to your building plans, and an anticipated loss of natural light is a valid reason for the local planning authority to consider. Concerns about overshadowing, reduced daylight or sunlight, and impacts on amenity often carry significant weight in planning decisions.
Core Services
Laser scanning and 2D/3D survey drawings from accurate
Point cloud to CAD/BIM conversion
Daylight, sunlight, and overshadowing analysis (BRE-compliant)
Rights of light analysis and negotiations
Cutback and permissable envelope massing studies
Design optimisation advice — how to meet targets without redesigning everything
3D renders, verified views (AVRs), and planning visuals
Fast turnaround for planning submissions
Optional Add-Ons
Laser scanning & CAD conversion
Captures accurate site data, CAD model building and surveys available
3D visualisation
Helps you picture the new design, verified views & marketing materials
Transient sunlight studies
Shows sunlight paths across the day for further analysis
360° Planning submission support
We handle daylight and sunlight, addendums, appeals and committee hearings for you
Space planning and interior design
For close urban or high-risk properties that may infringe on common law
Objections to or from neighbours
We can help you understand the impacts and what to do
Why Homeowners Choose Us
Fast turnaround
Urgent reports and analysis are available
Easy to understand
Written for homeowners and planning officers
Neighbourly-friendly
Help in avoiding risk from adjacent owners
Clear communication
Responsive collaboration
360° planning support
Everything you need for a successful application