Shadow Impact & Daylight Compliance — Instantly

Assess right-to-light, shadow impact on neighbors, and urban heat exposure for any development site. Generate planning-ready evidence in minutes.

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Photo by Daniel Sturley on Unsplash

Without SunTrace3D

Outsourced shadow studies cost €500–€2,000

Every planning application needs a shadow impact assessment. Outsourcing each one is slow and expensive.

Manual BRE 209 calculations

Checking daylight access to neighboring windows requires building 3D context models from scratch.

No tools for urban heat assessment

Climate impact of new developments on pedestrian thermal comfort is nearly impossible to quantify.

With SunTrace3D

Instant right-to-light analysis

Assess daylight access to neighboring windows using BRE 209 guidelines. See which windows pass or fail — no manual calculation needed.

Full-year shadow impact

Simulate shadows cast by proposed buildings across all seasons. Evidence for planning committees in minutes, not weeks.

Urban heat mapping

Analyze shade coverage and surface heat exposure. Quantify how new construction affects thermal comfort for pedestrians.

Right-to-Light Analysis

Right-to-Light Analysis

Assess daylight access to windows using BRE 209 guidelines. Identify which windows fall below recommended thresholds and generate compliance evidence for planning submissions.

Urban Heat Island Mapping

Urban Heat Island Mapping

Analyze surface temperatures and shade coverage across urban areas. Identify heat stress zones and evaluate how new construction affects thermal comfort for pedestrians.

Real-Time Shadow Simulation

Real-Time Shadow Simulation

Scrub through any hour of any day to see exactly where shadows fall on your property. Watch how sunlight changes from sunrise to sunset across all four seasons.

Building Configurator

Building Configurator

Design buildings before they're built. Choose building type, dimensions, roof style, and materials. Place your design on the map and analyze shadow impact on surroundings.

Professional PDF Reports

Professional PDF Reports

Generate client-ready site feasibility reports with 3D renders, system specs, monthly production charts, financial analysis, and environmental impact data.

3D Measurement Tool

3D Measurement Tool

Measure distances between buildings, trees, and property boundaries in full 3D. Essential for setback calculations and shadow impact assessments.

How It Works

1

Load the Development Site

Enter the site address and get a photorealistic 3D model of the area with all surrounding buildings already in place.

2

Analyze Compliance & Impact

Run right-to-light checks on neighboring windows and simulate shadow impact across the full year.

3

Export Planning Evidence

Generate professional PDF reports with shadow studies, compliance data, and 3D visualizations for planning submissions.

Why Switch to SunTrace3D?

Traditional Tools

  • €500–€2,000 per outsourced shadow study
  • Weeks of back-and-forth with consultants
  • Manual BRE 209 compliance checks
  • No urban heat assessment capability

SunTrace3D

  • Self-service analysis for €9/month
  • Results in minutes, iterate instantly
  • Automated window-by-window analysis
  • Built-in thermal comfort mapping

Frequently Asked Questions

Does this support BRE 209 guidelines?

Yes. The right-to-light analysis assesses daylight access to windows based on BRE 209 (Site Layout Planning for Daylight and Sunlight) guidelines, checking vertical sky component and annual probable sunlight hours.

Can I add a proposed building to the scene?

Yes. Use the building configurator to design your proposed development with custom dimensions and roof type, then analyze its shadow impact on surrounding properties and windows.

Is the shadow data accurate enough for planning submissions?

Shadow positions are calculated from astronomically accurate sun positions and real 3D building geometry. Many planners use SunTrace3D for feasibility and client presentations. Check your local authority's specific requirements for formal submissions.

Can I analyze pedestrian-level shadow impact?

Yes. The sunlight heatmap shows ground-level sun exposure including pedestrian corridors, parks, and public spaces. You can see exactly how much shade a new development casts at street level.

What does the urban heat analysis include?

The thermal analysis maps surface heat exposure based on shade coverage and material albedo. It identifies heat stress zones and shows how proposed developments affect thermal comfort.

Ready to run your first compliance analysis?

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