Beatty Road Sustainable Drainage Scheme

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Welcome to the Beatty Road Sustainable Drainage Scheme (SuDS) engagement page.

London Borough of Harrow is proposing a SuDS for the green space on Beatty Road. We would like to hear your views on the proposals by 23:59 on Friday 18 April 2025.


Introduction

The Beatty Road SuDS proposal is part of a wider “Action for Silk Stream” project being delivered by the London Boroughs of Harrow and Barnet. The project aims to reduce flooding and improve water quality in the Silk Stream area.

The proposal is to create a flood storage basin on a section of the central green space on Beatty Road. This would help surface water runoff during heavy rainfall, reducing flooding downstream. It would also provide better on-street parking on the edge of the green as the scheme would include the installation of a permeable surface around its boundary.


Background

Stanmore is an area that is susceptible to flooding, and several areas are deemed at medium-high risk. The flood map shows the extent of the issue.


The dark blue areas shown on the map shows a predicted high risk of surface water flooding (1 in 30-year event) and the light blue areas show a medium risk of surface water flooding (1 in 100-year event).

Over the past few years, there have been flooding incidents at Bush Grove, Honeypot Lane and Stanmore Marsh.

Flooding causes damage to homes, businesses, the environment, and our infrastructure. Road runoff pollution is also posing public and environmental health risks and is leading to poor water quality of the Silk Stream, Edgware Brook, and other watercourses (pictured below).


Honeypot Lane

Bush Grove








Stanmore Marsh

The causes of this issue include:

  • Heavy rainfall events
  • Climate change
  • Increased impermeability due to urbanisation and increasing hard surfaces (such as roads, pavements, buildings and driveways)


SuDS Proposal

  1. Create a flood storage basin on a section of the central green space on Beatty Road. The basin would cover around half of the green space and would be about 2 metres deep at its lowest point. It is expected that a steady flow of water would always run through the low-flow channel in the basin.
  2. Open a short section of the river that is currently piped (shown as a dashed blue line on the flood risk map) to further increase capacity. Both ends of the pipes will have screens on them to prevent public access, ensuring safety.
  3. Create eight reinforced grass parking spaces on sections of the green edge around the green space in Beatty Road. This would reduce the rutting and damage currently caused by cars parking on the green.
  4. Increase wildlife habitat through new wetland planting. An artist's impression as to how the final scheme may look can be seen below.


Artist’s impression of proposed Beatty Road SuDS
Artist’s impression of proposed Beatty Road SuDS and permeable parking


Although flooding does not happen in Beatty Road, the modelling shows that the proposed SuDS would remove flooding locally for some homes and businesses, and reduce flood depth for others, therefore reducing flood damage.


View the benefits of the proposed scheme.


The project, if approved, will be delivered in Spring 2026. It is split into three key phases: consultation, design, and build as shown on the project timeline [insert hyperlink]


How to get involved with the consultation


What happens after the consultation has finished?

The results of this consultation will show us if there is local support for the proposals.

The survey results will be anonymised and a summary of the consultation findings and the final results will be made available on this webpage on 30 April 2025.

We will notify residents if the scheme progresses into further detailed design and construction.

All responses to the consultation should be received no later than 23:59 on Friday 18 April 2025.

Welcome to the Beatty Road Sustainable Drainage Scheme (SuDS) engagement page.

London Borough of Harrow is proposing a SuDS for the green space on Beatty Road. We would like to hear your views on the proposals by 23:59 on Friday 18 April 2025.


Introduction

The Beatty Road SuDS proposal is part of a wider “Action for Silk Stream” project being delivered by the London Boroughs of Harrow and Barnet. The project aims to reduce flooding and improve water quality in the Silk Stream area.

The proposal is to create a flood storage basin on a section of the central green space on Beatty Road. This would help surface water runoff during heavy rainfall, reducing flooding downstream. It would also provide better on-street parking on the edge of the green as the scheme would include the installation of a permeable surface around its boundary.


Background

Stanmore is an area that is susceptible to flooding, and several areas are deemed at medium-high risk. The flood map shows the extent of the issue.


The dark blue areas shown on the map shows a predicted high risk of surface water flooding (1 in 30-year event) and the light blue areas show a medium risk of surface water flooding (1 in 100-year event).

Over the past few years, there have been flooding incidents at Bush Grove, Honeypot Lane and Stanmore Marsh.

Flooding causes damage to homes, businesses, the environment, and our infrastructure. Road runoff pollution is also posing public and environmental health risks and is leading to poor water quality of the Silk Stream, Edgware Brook, and other watercourses (pictured below).


Honeypot Lane

Bush Grove








Stanmore Marsh

The causes of this issue include:

  • Heavy rainfall events
  • Climate change
  • Increased impermeability due to urbanisation and increasing hard surfaces (such as roads, pavements, buildings and driveways)


SuDS Proposal

  1. Create a flood storage basin on a section of the central green space on Beatty Road. The basin would cover around half of the green space and would be about 2 metres deep at its lowest point. It is expected that a steady flow of water would always run through the low-flow channel in the basin.
  2. Open a short section of the river that is currently piped (shown as a dashed blue line on the flood risk map) to further increase capacity. Both ends of the pipes will have screens on them to prevent public access, ensuring safety.
  3. Create eight reinforced grass parking spaces on sections of the green edge around the green space in Beatty Road. This would reduce the rutting and damage currently caused by cars parking on the green.
  4. Increase wildlife habitat through new wetland planting. An artist's impression as to how the final scheme may look can be seen below.


Artist’s impression of proposed Beatty Road SuDS
Artist’s impression of proposed Beatty Road SuDS and permeable parking


Although flooding does not happen in Beatty Road, the modelling shows that the proposed SuDS would remove flooding locally for some homes and businesses, and reduce flood depth for others, therefore reducing flood damage.


View the benefits of the proposed scheme.


The project, if approved, will be delivered in Spring 2026. It is split into three key phases: consultation, design, and build as shown on the project timeline [insert hyperlink]


How to get involved with the consultation


What happens after the consultation has finished?

The results of this consultation will show us if there is local support for the proposals.

The survey results will be anonymised and a summary of the consultation findings and the final results will be made available on this webpage on 30 April 2025.

We will notify residents if the scheme progresses into further detailed design and construction.

All responses to the consultation should be received no later than 23:59 on Friday 18 April 2025.

  • Beatty Road Sustainable Drainage Scheme Survey

    Introduction

    Beatty Road is located within the Silk Stream catchment area and has been identified as a location to introduce a flood storage basin which will reduce the flood risk of properties downstream in the catchment.

     Action for Silk Stream is a partnership project, led by the London Borough of Barnet in partnership with the London Borough of Harrow. The project is funded by Defra as part of the £200 million Flood and Coastal Innovation Programmes which is managed by the Environment Agency. The project explores opportunities to reduce flooding and pollution while creating tangible environmental benefits within the Silk Stream catchment.

    For more information on our detailed plans, please take the time to read our consultation documents (information about the project on the webpage and the letter and booklet that has been delivered to your home) and then complete this short questionnaire. It should only take about 5 minutes of your time.

    The information you provide will help us identify who is / is not currently affected by surface water flooding and understand levels of support for the project proposals to install a flood storage basin and open up a short section of watercourse at Beatty Road. 

    Thank you for your time – your participation in this important consultation is greatly appreciated. 

    Please complete this survey by 23:59 on 18 April 2025.

     

    Data Protection and How We will Use Your Data

     We, the London Borough of Harrow take our privacy obligations seriously and we’ve created this privacy policy to explain how we treat your personal information collected on this website. Personal information is information we hold which is identifiable as being about you.

     Our collection, use and disclosure of your personal information is regulated by the UK General Data Protection Regulation (‘GDPR’) and the Data Protection Act 2018.

     Responses to this survey will be shared with project partners (Lumby Consultancy and Thames21) for analysis and report production. Partners may produce ‘aggregated’ statistical information which will be shared within the public domain; this information will not allow anyone to be personally identified.

    We are requesting your name and address in the ‘About You’ section purely for the purpose of understanding who has responded to the consultation process. Your details will be stored securely and will only be used for the purpose of contacting you about this scheme if deemed necessary.

     By providing us with the information requested in this questionnaire, including your personal data, you consent to the collection and use of any information you provide in accordance with the above purposes.

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Page last updated: 20 Mar 2025, 12:30 PM