Daylight & Sunlight Assessment Reports UK | BRE BR209 & EN17037 Compliant Specialists

Daylight & Sunlight Assessment Reports for Architects, Developers & Homeowners

Planning applications often require a daylight and sunlight assessment in accordance with BRE 209 guidance. Our reports provide LPA-ready VSC, NSL and APSH evidence that protects your scheme and your neighbours.

Our Specialist Daylight & Sunlight Services

Neighbour Amenity

Right to Light & Neighbour Amenity

BRE BR209 (2022) neighbour impact assessment covering VSC, NSL and APSH. Clear evidence to prevent planning objections on loss of light grounds.

Planning ready • Neighbour-facing
Policy & Evidence

Daylight & Sunlight Assessment for Planning (BRE 209)

Full VSC, NSL & APSH evidence prepared in accordance with BRE 209 (2022), the standard requested by planning officers in pre-application and validation letters.

LPA-friendly • Residential & commercial
Programme

Pre-Application Daylight Advice & Design Strategy

Early-stage daylight feasibility and massing advice so design teams can identify overshadowing risks before they become planning conditions or validation delays.

Early design • Concept to submission
Design Support

Internal Daylight Assessment (BS EN 17037)

BS EN 17037 internal daylighting compliance for new residential and commercial developments, balancing massing, glazing ratios and occupier amenity from concept through to planning submission.

Architect-friendly • Iterative advice
Free Tool

Will your project impact neighbouring daylight?

Get an instant risk assessment based on BR209 principles. Our tool analyses key factors to predict planning challenges.

Instant Assessment

Results in under 3 minutes with clear risk scoring

BR209 Compliant

Based on official BR209 guidance and thresholds

Expert Insights

Tailored recommendations from daylight specialists

No registration required • 2-3 minutes • Instant results

Daylight & Sunlight Knowledge Base

Short, visual, planner-friendly guides to help you submit stronger daylight/sunlight evidence.

Explore Knowledge Base

Checklists • BR209 explainers • Internal daylight refs

Daylight & Sunlight Assessment Case Studies | BRE BR209 Planning Projects UK

Daylight & Sunlight Assessment Case Studies

Real projects, real planning results. BRE BR209 compliant daylight and sunlight assessments for residential extensions, major developments, heritage schemes and planning objections across the UK.

Neighbour checks 0 Neighbour windows retained within BRE guidance across recent UK schemes.
New homes 0 New habitable rooms exceeding daylight targets after our design iterations.
Planning packs 0 Daylight & sunlight reporting packs issued for planning and appeals.
Addendums 0 Typical working-day turnaround for focused addendum reruns.
Case study typologies
Daylight and sunlight assessment for heritage pub redevelopment - The Cart Overthrown, Enfield, BRE BR209 compliant report
Heritage redevelopment Enfield

The Cart Overthrown

Daylight & sunlight evidence supporting the sensitive renewal of a former pub along a tightly packed heritage street.

  • Scope: Internal ADF for new apartments & neighbour VSC and APSH impacts.
  • Deliverables: Heritage-friendly daylight report referencing BRE flexibility for dense urban sites.

How we helped

  • Modelled the proposed massing in-context to show retained daylight to adjoining homes.
  • Explained modest shortfalls using BRE's "flexibility in urban situations" guidance.
  • Prepared planning-facing narrative and graphics for the submission package.

Stage: Heritage design review

Daylight and sunlight assessment for urban residential redevelopment - Gwalia Working Mens Club, Brent London, VSC and APSH analysis
Urban redevelopment Brent, London

Gwalia Working Mens Club

Seventeen homes in a dense context, replacing a two-storey club while keeping neighbours comfortable.

  • Scope: Concept daylight and sunlight review plus neighbour comfort testing.
  • Deliverables: Pre-app briefing note, design workshop materials, scenario modelling.

How we helped

  • Ran side-by-side scenarios during design workshops so the team could make confident massing moves.
  • 97% of assessed neighbour windows remain within BRE daylight guidance.
  • Single-aspect flats improved by repositioning stair cores and enlarging glazing.
  • Issued staged reporting aligned to planning milestones.

Stage: Pre-application workshops

Daylight and sunlight assessment for major residential development - 10 Midland Road Luton, BRE BR209 neighbour VSC and sunlight report
Major residential Luton

10 Midland Road

Five blocks delivering 240 homes next to the station, future-proofed against neighbouring development.

  • Scope: Neighbour VSC, sunlight, and future site envelopes.
  • Deliverables: Comparative massing report, landscape shadow study, LPA-ready appendix.

How we helped

  • Presented comparative diagrams so the planning case officer could support the balanced massing.
  • Verified adjacent plots can still achieve compliant daylight when they come forward.
  • Shadow testing co-ordinated with the landscape team to evidence comfort in amenity courts.

Stage: Masterplanning review

Overshadowing and sunlight assessment for Sunborn Yacht Hotel London - amenity area sunlight analysis spring equinox
Waterfront realm London

Sunborn Yacht Hotel

Replacement vessel and adjusted mooring, confirming dockside public spaces stay sunlit.

  • Scope: Shadow-path comparisons and terrace analysis.
  • Deliverables: Animated sun-hour plots, harbour authority briefing slides, narrative note.

How we helped

  • Clarified differences between existing and proposed shadows for the harbour authority and planning officers.
  • Animated sun-hour plots for key terraces showing 2+ hours on 21 March.
  • Briefing slides supplied for consultant and client presentations.

Stage: Strategic advisory

Daylight assessment addendum for planning application - Bishops Street Ipswich, BRE BR209 daylight rerun and validation report
Design addendum Ipswich

Bishops Street

Corner-window sensitivity led to a quick design adjustment backed by a fresh daylight note.

  • Scope: Targeted daylight rerun and addendum letter.
  • Deliverables: Updated calculations, justification letter, glazing tweak recommendations.

How we helped

  • Delivered a refreshed model and narrative within 48 hours to satisfy validation requirements.
  • Confirmed the corner window maintains acceptable daylight post-amendment.
  • Recommended glazing tweaks to future-proof occupier comfort.

Stage: Addendum submission

Daylight and sunlight assessment for residential extension - 42 Baring Road Beaconsfield, neighbour light impact and VSC checks
Neighbour extension Beaconsfield

42 Baring Road

First-floor extension alongside a neighbour with facing windows needing reassurance.

  • Scope: Small-scale neighbour daylight and sunlight checks.
  • Deliverables: Before/after diagrams, commentary for officers, advice on detailing.

How we helped

  • Provided simple diagrams and commentary so case officers and neighbours could see the impact clearly.
  • Recorded pre- and post-extension daylight levels for four windows.
  • Guided eaves detailing to minimise perceived loss.

Stage: Householder approval

Project highlights
278-280 Church RoadTesting mansard step-backs so the terrace retains compliant VSC and outlook.
306 High Street NorthStress-testing revised facades against the borough daylight SPD before submission.
29 Cloth FairProducing heritage-sensitive visuals for discussions with City of London officers.
96 Bath RoadRe-running sunlight checks after the design team reconfigured the central courtyard.
Chertsey BoulevardBalancing twin block massing so both plots meet BRE guidance and skyline goals.
Tanner StreetAdvising on glazing swaps to lift daylight factors within a tight urban grain.
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