Daylight and Sunlight Assessment London

At Anstey Horne, we provide expert Daylight and Sunlight Assessments in London, helping developers, architects, and planning consultants ensure that new developments meet the highest standards of amenity and compliance.

What Is a Daylight and Sunlight Assessment?

A Daylight and Sunlight Assessment in London evaluates how a proposed development will impact natural light levels in existing and new buildings.

In densely developed urban areas like London, access to natural light is a critical planning consideration. These assessments form a vital part of the planning process and are often required by local planning authorities.

Why Are Daylight and Sunlight Assessments Important?

London’s compact, high-density environment makes it essential to balance new development with the preservation of natural light for neighbouring properties. A well-prepared daylight and sunlight assessment can:

Support a planning application with robust technical evidence
Demonstrate compliance with BRE Guidelines (BR209)
Mitigate the risk of planning objections or appeals
Safeguard neighbouring amenity and avoid planning objections

What Do Our Assessments Include?

Our Daylight and Sunlight Assessment London service includes comprehensive analysis and reporting in line with the latest edition of the BRE Guide: Site Layout Planning for Daylight and Sunlight – A Guide to Good Practice (BR209, 2022). We evaluate:

1. Vertical Sky Component (VSC): Measures daylight reaching windows

2. No Sky Line (NSL): Assesses daylight distribution within rooms

3. Annual Probable Sunlight Hours (APSH): Quantifies sunlight availability to windows

4. Overshadowing Analysis: Determines sunlight access to gardens and open spaces

5. Solar Panel Impacts: Evaluates potential overshadowing of renewable installations

Who Needs a Daylight and Sunlight Assessment?

You will likely need an assessment if:

Your proposed development is near residential buildings
You’re submitting a planning application for a new building, extension, or change of use
The scheme could potentially reduce daylight or sunlight to neighbouring properties
The local planning authority has requested one

Our reports are frequently submitted as part of planning applications across all London boroughs, with particular experience in high-density, sensitive, and heritage contexts.

Why Choose Anstey Horne?

We are one of the UK’s most experienced consultants in the field of daylight and sunlight. With a heritage spanning over two centuries, Anstey Horne combines deep technical knowledge with an in-depth understanding of planning policy and urban design.

Our London-based team delivers:

Clear and reliable reports tailored to your project
Fully compliant assessments in accordance with BRE, BS EN 17037 and local authority standards
Expert witness services and strategic advice
Fast turnaround and transparent pricing

Sectors We Support

We work across all sectors including:

Residential (single dwellings to large-scale mixed-use)
Commercial developments
Education and healthcare facilities
Community and public sector buildings

Contact - Daylight and Sunlight Assessments London

For a Daylight and Sunlight assessment advice from one of our London surveyors, please call our Enquiry line in 020 4534 3138.

We cover all of London and the South East. We have live Daylight and Sunlight projects in London, Brighton, Hastings, Canterbury, Chichester and Guildford.

See links to our recent projects in London at Dagenham Dock, Harrow Road  and Stevenage Town Centre.

For more information on all aspects of a Daylight and Sunlight Assessments see the collection of articles on our blog page.

For details of our specialist Daylight & Sunlight surveyors near you see our Birmingham, Manchester, Bristol, Brighton, Norwich & Plymouth office details.