Bringing Clarity to Light in Planning & Design

Meet Our Experts in Daylight & Sunlight

Specialists in BR209 & BS EN 17037 assessments for UK planning.

At DaylightSunlightExpert.co.uk we help architects, developers, and homeowners evidence compliance, protect neighbour amenity, and resolve daylight conflicts early. As part of Environmental Economics Ltd, we combine design insight with building physics to deliver planning-ready, visual reports.

Who We Are

DaylightSunlightExpert.co.uk is a specialist microsite of Environmental Economics — delivering daylight, sunlight, and overshadowing analysis that stands up to planning scrutiny.

We model in SketchUp and Radiance-based workflows (with DesignBuilder where relevant), and translate results into clear visuals and concise summaries for planning officers and design teams.

Our Expertise

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Daylight & Sunlight Impact

VSC / NSL / APSH to BR209 & BS EN 17037 with policy benchmarking.

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Amenity & Overshadowing

Gardens, courtyards and windows — existing vs proposed massing.

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Design Optimisation

Pre-submission reviews and early advice to reduce redesigns and delays.

Why Work With Us

✅ Proven planning successApprovals supported across UK LPAs.
💡 Architect-focused insightWe resolve daylight trade-offs early.
📊 Transparent reportingClear diagrams + concise summaries.
🤝 Collaborative approachDirect liaison with design teams & officers.

Trusted by Barratt, David Wilson Homes, Abbey New Homes, Rose Builders and Hopkins Homes.

Our Mission

We bridge design and science — enabling brighter, healthier homes that meet policy and protect neighbour amenity.

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Explore our full suite of environmental design services, case studies, and insights.

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Need help with daylight, overheating, energy or sustainability?

Our team can advise across Environmental Economics’ full service range.

Meet our crew

The people dedicated to helping you

Bringing Clarity to Light in Planning & Design

At DaylightSunlightExpert.co.uk, we specialise in daylight and sunlight assessments for planning applications — helping architects, developers, and homeowners demonstrate compliance, protect neighbour amenity, and achieve design excellence.

As part of Environmental Economics Ltd, we combine architectural insight with environmental expertise to provide evidence-based daylight and sunlight analysis tailored to UK planning standards. Our team's work is grounded in BRE BR209 (2022) and BS EN 17037 methodologies, ensuring every report is both technically robust and policy-aligned.

Our Expertise

Our consultants are qualified environmental and building physics specialists with extensive experience across residential masterplans, infill sites, conversions, and listed-building contexts.
We routinely work with leading UK housebuilders — including Barratt Developments, David Wilson Homes, Abbey New Homes, Rose Builders, and Hopkins Homes — as well as architectural practices and private clients.

Each project is modelled in-house using advanced 3D simulation tools (DesignBuilder, SketchUp, and Radiance-based workflows), ensuring realistic daylight and overshadowing predictions that withstand planning scrutiny.
Our team's multi-disciplinary background in architecture, sustainability, and environmental modelling allows us to interpret complex spatial relationships and communicate results in clear, visual terms — supporting both technical review and public understanding.

Why Work With Us

  • Proven Planning Success: Our reports have supported hundreds of successful planning applications across the UK.

  • Architect-Focused Insight: We understand the design process and help resolve potential daylight conflicts early.

  • Transparent, Visual Reporting: Every report includes clear diagrams, VSC/NSL/ASPH results, and planning-ready summaries.

  • Collaborative Approach: We liaise directly with design teams and local planning officers to streamline approvals.

Our Mission

To bridge design and science — empowering architects and developers to make light-informed decisions that enhance wellbeing, comply with planning policy, and shape better spaces for people.

Beyond Daylight & Sunlight

DaylightSunlightExpert.co.uk is part of a broader suite of environmental services offered by Environmental Economics Ltd, covering:

  • Overheating Analysis (TM59 & Part O) – TM59expert.co.uk

  • Energy & Carbon Assessments (SAP, SBEM, EPC)

  • BREEAM & Sustainability Statements

  • Part L & Part F Compliance Modelling

  • Climate-Based Comfort & Retrofit Feasibility Studies

Together, these services allow us to provide a complete environmental design package — from early feasibility through to post-planning support.