About Us | Daylight & Sunlight Assessment Specialists UK | BRE BR209 Experts
Who We Are

UK Daylight & Sunlight Assessment Specialists

BRE BR209 and BS EN 17037 compliant reports for architects, developers and homeowners across the UK

We deliver daylight and sunlight assessments in accordance with Site Layout Planning for Daylight and Sunlight: A Guide to Good Practice (BRE BR209, 2022) and BS EN 17037. Our planning-ready VSC, NSL and APSH reports are trusted by architects, planning consultants, developers and homeowners for residential, mixed-use and regeneration projects.

Daylight and sunlight assessment team collaborating on BRE BR209 planning report

Trusted Partner: Part of Environmental Economics collective with TM59 Expert, BREEAM Expert, SBEM Expert, and Future Homes Standard Lab

Our Approach

Expert Daylight & Sunlight Assessment Services

We join design teams early to understand massing and amenity goals, then deliver planning-ready BRE BR209 daylight and sunlight assessments for residential, mixed-use and regeneration projects. All reports are prepared in accordance with Site Layout Planning for Daylight and Sunlight: A Guide to Good Practice (BRE 209, 2022).

Daylight & Sunlight Assessment (BRE BR209)

Full VSC, NSL and APSH analysis for neighbouring and new dwellings, prepared in accordance with BRE 209 (2022). LPA-ready reports for planning applications and pre-application advice.

Overshadowing Assessment

Amenity space and garden overshadowing analysis confirming the 2-hour sun on 21 March rule, with shadow path animations and annual probable sunlight hour (APSH) calculations.

Pre-Application Daylight Feasibility

Early-stage massing assessments to identify daylight and overshadowing constraints before design commitment, helping avoid planning delays and costly redesign.

Design Collaboration

Workshops with architects to align daylight targets with evolving massing and facade strategies.

Technical Reporting

Clear, planning-ready documentation explaining methodology, findings, and design responses.

Integrated Analysis

Connect daylight findings with TM59 overheating, energy strategy, and thermal comfort across Environmental Economics.

Expert Team

Meet Our Senior Daylight Consultants

Our consultants stay with each project from first conversation to final approval.

Daylight and sunlight assessment consultants reviewing BRE BR209 planning report
Daylight Lead

Radhika Ganesh – Lead Daylight Consultant

Architect-trained daylight consultant blending technical modeling, design judgment, and planning communication for UK housing and urban projects.

Principal Consultant

Ayaan Ahmed – Principal Planning Consultant

Architecturally grounded specialist delivering robust BRE 209 daylight and sunlight assessments with clear planning advice for residential and mixed-use developments. Expert in VSC, NSL and APSH analysis.

Our Services
Daylight & SunlightBRE 209 assessments for planning compliance and design optimization. TM59 / TM52 OverheatingDynamic thermal simulations aligned with Part O requirements. London Plan EnergyCarbon reduction strategies meeting GLA policy targets. Whole-life CarbonEmbodied and operational carbon analysis for sustainability. Photo Evidence PacksBuilding control documentation with photographic records. Thermal BridgingPsi-value calculations and condensation risk analysis. Heating & Cooling LoadsHVAC sizing studies for comfort and efficiency. Air QualityIndoor air quality assessments and ventilation strategies. Part F VentilationCompliance pathways for residential ventilation requirements. Planning StatementsTechnical narratives supporting planning applications. Daylight & SunlightBRE 209 assessments for planning compliance and design optimization. TM59 / TM52 OverheatingDynamic thermal simulations aligned with Part O requirements. London Plan EnergyCarbon reduction strategies meeting GLA policy targets. Whole-life CarbonEmbodied and operational carbon analysis for sustainability. Photo Evidence PacksBuilding control documentation with photographic records. Thermal BridgingPsi-value calculations and condensation risk analysis. Heating & Cooling LoadsHVAC sizing studies for comfort and efficiency. Air QualityIndoor air quality assessments and ventilation strategies. Part F VentilationCompliance pathways for residential ventilation requirements. Planning StatementsTechnical narratives supporting planning applications.
Ready to Start?

Request a Daylight & Sunlight Assessment Quote

Send us drawings, Revit exports, or your planning condition letter. We will confirm scope, turnaround and fee within 24 hours. Serving architects and developers across England, Wales and Scotland.

Contact Us