Housing and economic supply evidence (SLAA)
Updated 5-Year Housing Land Supply Statement
September 2025: The Council has published an updated 5 Year Housing Land Supply Position Statement as the adopted Runnymede 2030 Local Plan is now older than 5 years (having been adopted on 16 July 2020). This shows that the Council can demonstrate 2.89 years supply of housing as of 1 April 2025.
Strategic Land Availability Assessment (SLAA)
The Council is required to produce a Strategic Land Availability Assessment (SLAA). The SLAA helps to identify future sources of land to help meet the area’s development needs. It is a technical study which assesses particular areas of land supply in the Borough to determine how far each is suitable, available and achievable (viable) for development or to support development.
The SLAA is updated periodically, and the Council has published an interim version in May 2026, ahead of the outcome of the Green/Grey Belt Review which will inform a further iteration in the latter part of 2026. This is because the findings of this work will inform the SLAA assessment of those sites that are situated within the Green/Grey Belt.
SLAA: Call for sites
The Council undertook a Call for sites for the 2025 SLAA from Wednesday 17 September 2025 until Sunday 19 October 2025. The next Call for Sites is expected to take place in the Autumn of 2026, as part Scoping Consultation on the New Local Plan.
As part of the SLAA process, sites can be suggested for housing, employment, retail, leisure, health, Suitable Alternative Natural Greenspace (SANG), Biodiversity Net Gain (BNG) and other supporting infrastructure, such as suitable areas for renewable and low carbon energy sources, or flood alleviation infrastructure.
The housing category includes general housing (including market and / or affordable homes), self- / custom-build schemes, Gypsy and Traveller and Travelling Showpeople accommodation, student accommodation, accommodation for older people, or a mix of housing types.
For the 2025 SLAA, Biodiversity Net Gain (BNG) is a new category of potential land use that has been introduced by Government. BNG is an approach to development that makes sure that habitats for wildlife are left in a measurably better state than they were before the development and is mandatory under Schedule 7A of the Town and Country Planning Act 1990 (as inserted by Schedule 14 of the Environment Act 2021).
More information about this can be found on the Governments website:
If you wish to suggest a new site, or to amend the details of a previously submitted site for the SLAA and / or the Brownfield Register, please complete and then submit the below Site Nomination Form to the Council.
If you do not want to use the above online form, you can email the Planning Policy team and we can send you a Microsoft Word version of the form to complete and return. The completed form and a site plan (1:1250 or 1:2500 in scale), with the boundaries of the site clearly outlined, should both be submitted as attachments in an email to planningpolicy@runnymede.gov.uk or posted to:
Planning Policy Team
Runnymede Borough Council
Civic Centre
Station Road
Addlestone
Surrey
KT152AH
The above contact details can also be used to request hard copy nomination forms.
Please note that although the formal Call for Sites period ran between Wednesday 17 September 2025 and Sunday 19 October 2025. Runnymede Borough Council will still accept site submissions outside of this period. However, these submissions will now be included in the next iteration of the SLAA (2026). It would, however, be kept for consideration in any future iteration of the SLAA.
Update to the Joint Strategic Land Availability Assessment (SLAA) Methodology
The Council has produced an updated Joint Strategic Land Availability Assessment (SLAA) Methodology for Runnymede and Spelthorne Borough Councils. This version replaces the 2024 version.
2025 SLAA
Runnymede Borough Council has produced an update to the Strategic Land Availability Assessment (SLAA) 2021 in the 2025 SLAA. The 2025 SLAA has been produced to support the review of the Runnymede 2030 Local Plan.
The 2025 SLAA is available to view below.
The 2025 SLAA site assessments and their associated maps are available to view in the area Appendices below. One has been produced for each settlement Area in the Borough. SLAA sites can be viewed in the context of the Borough on Maps - Runnymede's interactive mapping service
- Addlestone 2025 SLAA appendix (PDF 7.3 MB)
- Chertsey 2025 SLAA appendix (PDF 11.6 MB)
- Egham 2025 SLAA appendix (PDF 7.7 MB)
- Englefield Green 2025 SLAA appendix (PDF 4.6 MB)
- Longcross 2025 SLAA appendix (PDF 1 MB)
- Other (Lyne) 2025 SLAA appendix (PDF 3.9 MB)
- Ottershaw 2025 SLAA appendix (PDF 3.4 MB)
- Thorpe 2025 SLAA appendix (PDF 5.7 MB)
- Virginia Water 2025 SLAA appendix (PDF 5.9 MB)
- Woodham and New Haw 2025 SLAA appendix (PDF 3.1 MB)
As part of the production of the 2025 SLAA, the Council undertook an Urban Area Capacity Study (UACS) which aims to understand the capacity of the Borough’s designated ‘Urban Area’ (in accordance with the Council’s adopted Local Plan policies map) to accommodate new development and identify additional urban sites which have currently not been included through the SLAA process to date. Having systematically reviewed the urban area across the Borough’s ten Settlement Areas, the Study then assesses sites for their potential inclusion in the Council’s SLAA, which will in turn inform site selection for the revised Local Plan.
The Urban Area Capacity Study is Available to view below.
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