Daylight requirements in Great Yarmouth matter to anyone proposing residential development in this distinctive seaside and energy-port borough, whether you are extending a terraced home near the seafront, converting a property in the historic Rows, or building out a larger scheme inland. Great Yarmouth Borough Council expects new development to protect the daylight, sunlight and general living conditions of neighbouring occupiers, and to deliver good-quality internal amenity for future residents. This guide sets out the planning framework that applies locally and explains how a professional daylight and sunlight assessment can strengthen your application.
Who decides daylight requirements in Great Yarmouth?
Great Yarmouth is a shire district (a borough), and Great Yarmouth Borough Council is the local planning authority (LPA) for the area. Norfolk County Council is the upper-tier authority but is not the LPA for ordinary householder and residential planning applications. That means daylight and sunlight, as matters of residential amenity, are judged by the borough council's planning officers against its adopted development plan, supported by recognised national technical guidance.
The borough has its own particular character. As a coastal resort with a working port and a growing offshore energy and renewables sector, it combines tightly packed historic streets near the seafront with regeneration and mixed-use sites elsewhere. Both contexts raise daylight and sunlight questions: dense urban grain can make overshadowing and overlooking more acute, while new-build schemes must secure adequate light for future occupiers.
The adopted Local Plan for Great Yarmouth
The development plan for Great Yarmouth is in two parts:
- the Great Yarmouth Local Plan: Core Strategy 2013-2030, adopted in December 2015, which sets the strategic policies; and
- the Great Yarmouth Local Plan Part 2, adopted in 2021, which adds detailed development management policies and site allocations and amends a small number of Core Strategy policies.
Read together, these documents form the policy basis against which planning applications are determined. Several neighbourhood plans also apply in particular parishes within the borough.
Key policies on design and amenity
Two policies are central to daylight and sunlight questions:
- Policy CS9 of the Core Strategy is the principal design policy. It seeks to ensure new development responds to and draws inspiration from the surrounding area's distinctive built characteristics, including scale, form and massing — all of which directly influence overshadowing and the relationship between buildings.
- Policy A2 (Design Principles) in Local Plan Part 2 provides additional, more detailed guidance on what good design should achieve. Securing a high standard of amenity for both existing neighbours and future occupiers — including adequate light and the avoidance of unacceptable overshadowing, overlooking and loss of privacy — is part of the well-designed places the plan seeks to deliver.
These policies are expressed as design and amenity principles rather than fixed numerical daylight figures, which is why an objective technical assessment is often the clearest way to demonstrate compliance.
The Great Yarmouth Design Code SPD
A notable local feature is the Great Yarmouth Design Code Supplementary Planning Document (SPD), which was adopted on 29 January 2024. The Design Code provides further detail and guidance to support the existing design-based policies in the Core Strategy and Local Plan Part 2, including Policies CS9 and A2. It sets out principles and standards for how development should be designed across the borough, aiming to create visually pleasing neighbourhoods and a strong sense of place.
Importantly, the Design Code is a design SPD rather than a dedicated daylight and sunlight technical standard. It does not replace the recognised national methodology for measuring loss of light. Where a proposal's design raises amenity or overshadowing concerns, the council still looks to established technical guidance to test the impact objectively.
Daylight requirements in Great Yarmouth: the technical standards
Great Yarmouth Borough Council does not publish a separate daylight and sunlight SPD setting bespoke numerical targets. Where its policies require amenity to be protected and loss of light avoided, officers rely on nationally recognised guidance. The standards that apply are:
- BRE BR 209, Site Layout Planning for Daylight and Sunlight: A Guide to Good Practice (2022 edition) — the standard methodology for assessing daylight to neighbours (Vertical Sky Component and the daylight distribution / no-sky line tests), sunlight (Annual Probable Sunlight Hours) and overshadowing of gardens and amenity areas.
- BS EN 17037 Daylight in Buildings — the British/European standard addressing daylight provision within new dwellings, relevant to the quality of internal living conditions for future occupiers.
- The National Planning Policy Framework (NPPF), which requires decisions to secure a high standard of amenity for existing and future users and to support well-designed places.
With no local SPD overriding them, these documents effectively define the daylight requirements that apply through Great Yarmouth's Local Plan policies and Design Code. A BRE BR 209 (2022) assessment is the recognised way to evidence that a scheme is acceptable.
When should you commission an assessment?
A daylight and sunlight assessment is commonly advisable where:
- development is close to a boundary in a dense seafront or town-centre street and could overshadow neighbouring windows;
- a first-floor or two-storey extension projects beyond an adjoining property;
- an infill or backland plot sits among existing homes;
- a larger residential or mixed-use regeneration scheme would affect surrounding daylight and sunlight; or
- a neighbour objects on loss-of-light grounds and the council requests supporting evidence.
Providing a clear BRE-based report at the outset can reduce delay and the risk of refusal, and gives officers the objective evidence they need.
How Fortress Associates can help
Fortress Associates provides our daylight and sunlight report service to homeowners, architects and developers across Great Yarmouth and the wider Norfolk coast. We prepare robust assessments to BRE BR 209 (2022) and BS EN 17037, written to support your proposal against Policies CS9 and A2 and the 2024 Design Code. We work nationwide with a 4 to 5 working day turnaround and ask for no advance payment. We can also prepare Building Regulations drawings for your project. To discuss a scheme anywhere in the borough, please get in touch.
Related reading
If your work spans neighbouring authorities, see our companion guides to daylight requirements in South Norfolk and daylight requirements in Broadland, where different adopted plans apply.
Sources & further reading
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