Bedfont and Mayfield Farm*

Although the new runway is to the north-west of the airport, we need to make changes in the south as well. We will work with you to keep disruption to a minimum.

*This page contains one (1) question located within the “Have your say” section at the bottom of the page.

What happens in Bedfont and Mayfield Farm

We need space for new hotels, cargo and offices. Our plans are designed to make sure we respect the natural and historic environment – such as respecting the setting of scheduled monuments and enhancing landscape features.

One of the things we need to move to make space for the runway is the Home Office’s Immigration Removal Centre. We have worked with the Home Office and Hounslow Council and we are now proposing land at Faggs Road for the Centre. We have also considered land at Mayfield Farm and that remains an option. We prefer Faggs Road because it has good public transport, is close to the airport and doesn’t conflict with Hounslow Council’s long-term plans for mixed use  development at Mayfield Farm.



New development to support the airport, including waste handling facilities, will be built next to Terminal 4. We are proposing to build a multi-storey car park on the existing long stay car park site.

We will also provide a surface level car park next to it. These will provide space for car hire and taxi parking.

We need to expand the cargo area to allow us to double the amount of cargo we can handle. To support this we are also proposing freight forwarding facilities in several locations marked as Airport Supporting Development on the map above.

Following your feedback, we have reduced the amount of development proposed at Mayfield Farm. This will help protect the Scheduled Ancient Monuments and avoid conflict with Hounslow Council’s plans for the site. Instead, we are proposing new additional drainage and water treatment areas on Mayfield Farm and on sites to its west (around the Esso facility).

We will expand the Southern Perimeter Road from two to three lanes in each direction from Stanwell Moor Junction in the west to a new roundabout at Stirling Road.

A new southern road tunnel is proposed to connect to the Central Terminal Area (CTA) from an improved roundabout at the junction with Beacon Road to the west of Terminal 4. We are also investigating its suitability as a route for cyclists accessing the CTA from the south.

We will also improve the Longford and the Duke of Northumberland’s rivers and enhance landscape features as part of the Green Loop recreational route that will run around the airport.

Things we’ve changed after listening to you

  • We have scaled back development in this area to respect the setting of the Scheduled Ancient Monuments and Hounslow Council’s plans for a long-term mixed-use development.
  • We have identified Faggs Road as the preferred site for the Immigration Removal Centre.

Green space in your local area

The natural area around Mayfield Farm to West Bedfont is rich in heritage assets, which are currently hidden and could be enhanced with improved interpretation and signposting as a community asset.

Mayfield Farm provides the opportunity to create links between neighbouring villages and Bedfont Lakes Country Park to the south. The identified route for the Green Loop goes through areas of newly created reed beds. The reed beds play an important role in conserving and cleaning surface water and are important for wildlife habitats.

Opportunities for a tree and plant nursery will supply trees for the project. Areas for carbon grasslands trials within the existing field boundaries help lock carbon into longer root systems and back into the earth.

Scheduled Monuments
Protect, enhance and uncover historic assets within the sites as local heritage and educational resources
Carbon grass trial plots
Areas for carbon grass trial plots to help capture and lock carbon into natural systems
Broadleaf woodland
Opportunity to protect and strengthen an area of designated broadleaved woodland habitat
Pedestrian and cycle routes
Pedestrian and cycle routes connecting Stanwell, Bedfont and Bedfont Country Park and incorporating the Green loop
Reed beds
Reed beds are required to slow down and clean water run-off, allowing clean water to percolate back into below ground aquifers
Tree nursery
Establishment of a tree nursery to provide trees for the project
Heathrow's green space proposals for your area
1) Scheduled Ancient Monument - Neolithic causewayed enclosure. 2) Reed beds for run-off attenuation. 3) Potential tree nursery.


Expanding Heathrow is more than building a new runway – we also need to build facilities for passengers, make changes to roads and car parks, and relocate some of the existing airport infrastructure.

Over the past two years we have engaged with and considered the views of over 1,000 stakeholders and our local community to help develop our preferred scheme. Over time, our new runway will increase our flights from 480,000 to just over 750,000 per year. About 80 million people fly with us each year today. This will increase to about 142 million. We will also double the amount of cargo we can handle.

As part of our application to expand Heathrow, we propose that some of the extra flights, which could be up to 25,000 additional flights per year, are introduced early on our existing two runways prior to our proposed third runway being brought into operation.

The map below shows the key features of the new airport when we have finished building. On Local overview – How we will build it we show the steps we will take to get there.

We want to finish the runway as soon as possible. If we get permission, we are aiming to complete it by the end of 2026. When the runway is open we will have finished most of the work closest to communities. Most work after that will be inside the new airport boundary. The main works outside the new airport boundary will be to Stanwell Moor Junction, the southern parkway, and the northern parkway.

Changes to traffic

While we do not expect the expanded airport to attract more traffic, there may still be localised increases and decreases. While the airport is being built there will also be construction traffic on some roads connecting the airport to the strategic road network.

The maps below give a preliminary indication of the possible changes to traffic levels in 2022 (during the construction phase), and in 2035 (nine years after we expect the runway to open). These forecasts will be reviewed and updated before we formally apply for consent to expand the airport.

Your responses to this consultation will help us to understand how these potential changes would affect you. There are a range of measures we could use to address any specific concerns. These range from improved signage or changes to junction layouts to measures to promote the use of public transport and encourage the more efficient use of cars.

Changes to traffic - 2022
For most of the project, construction traffic is expected to be highest in late 2022/early 2023, just before the expected opening of a construction rail link in Colnbrook. However, there is expected to be very little change around Bedfont and Mayfield Farm at that point. We are forecasting that on most roads in the area there will be no noticeable change in traffic flows. The A30 between the Staines Road roundabout and Terminal 4 is forecast to see a small decrease in traffic.
Changes to traffic - 2035
There could be increases in daily traffic flows on the main roads of the A30, Staines Road, Hatton Road and Clockhouse Lane. We do not anticipate any substantial increases to traffic flows on local roads in this area.

Air quality – Bedfont and Mayfield Farm

The expanded airport will be designed to reduce emissions and our plans include ways to manage:

  • The way that people travel to the airport by
  • increasing the use of public transport.
  • The use of cleaner, more sustainable vehicles.
  • Emissions from older, more polluting cars by introducing a Heathrow Ultra Low Emission Zone to charge these vehicles to access the airport.

During construction, air quality in Bedfont and Mayfield Farm may be affected by dust and vehicle emissions.

There will be increases in pollutant levels associated with expanding the airport, but these are not considered to be significant. Levels of all pollutants will be within the levels set by the Government to protect health.

The smell of aviation fuel may be noticeable at locations closest to the airport during certain weather conditions.

For more detailed information on air quality see the Airport Expansion Consultation Document and the Preliminary Environmental Information Report, Volume 1, Chapter 7: Air quality and odour and Local overview – Air quality.

Noise in Bedfont and Mayfield Farm

A larger Heathrow may mean some local communities will hear more noise from construction activities, from aircraft on the ground and in the air, and from local roads.

We will implement a range of measures to reduce the effects on the local community.


Bedfont is likely to experience noise effects from the construction of new buildings and roads. No noise effects from construction activities are likely to be experienced by communities around Mayfield Farm.

All our construction activities will follow a Code of Construction Practice to help reduce impacts.

We will provide insulation to reduce noise impacts for homes and community buildings where it is needed. In some instances, we may offer temporary re-housing for example during periods of very noisy works such as demolition or piling. More information on insulation and temporary re-housing is available in the Noise Insulation Policy document.

Aircraft & ground noise

Bedfont and Mayfield Farm do not currently have flights directly overhead but noise from the airport can be heard.

The new runway would cause little change to noise levels in Bedfont and Mayfield Farm, and noise levels will improve at night due to the ban on scheduled flights. Noise generated by aircraft on the ground is not expected to increase in Bedfont and Mayfield Farm.

We have not identified any community buildings in Bedfont or Mayfield Farm that are likely to need noise insulation.

Please see Local overview – Reducing noise effects for more information.

Further information

For further information on how we have assessed noise see the PEIR, Volume 1, Chapter 17: Noise and Vibration, Section 17.11. For more information on our proposals, please see section 5 of the Airport Expansion Consultation Document and the Future Runway Operations document.

Events and more information

Please also see the related local area overview pages for more information:

  • During this consultation we are also hosting 43 events. To find an event near you, visit Events.

Have your say

Our Heathrow Expansion and Your Area documents set out our development proposals, their potential effects and how we propose to reduce them.

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