Harlington and Cranford Cross*

The new runway will be located to the west of Harlington and Cranford Cross, beyond the M4 spur and Sipson.

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

What happens in Harlington and Cranford Cross

As a result of the new runway, we need to change roads and parking around the airport, and make space for new hotels and other commercial buildings to support the airport. We will be providing a new Green loop and reproviding and enhancing public open space in the area (see Green Space around the villages below).

The A4 Bath Road will be diverted around the north of the runway and will include priority for buses and bicycles. It will link to a new multi-storey car park (which we call parkway) on the east of the M4 Spur and then join up with the existing A4 at Sipson Road. As a result we need to move Little Harlington Playing Fields to a site to the north-west of Harlington.

The new parkway will be delivered in phases following the new runway opening. It will provide shuttle access to the terminals, supporting onward journeys to and from central London and other destinations by bus, coach, tube and train.

We are also proposing new airport supporting facilities in the north-east corner of the airport near Cranford Cross. Our current proposals is for bus and coach parking and flight catering facilities to be delivered here.

Things we’ve changed after listening to you

  • The northern parkway will be built later in the programme and will provide improved access to the terminals
  • We are investing in open spaces, including reproviding Little Harlington Playing Fields
  • The Green Loop responds to requests for better walking and cycling routes.


Our property policies

To construct and operate an expanded Heathrow we will need to acquire areas of land which currently include residential, commercial and agricultural properties.

MAP | This map shows the areas within our property compensation zones. For assistance, please contact our community relations team using the contact details on this website.

Compulsory Purchase Zone

This area will need to be acquired for the expansion of Heathrow and is referred to as the Compulsory Purchase Zone. Properties in Longford, Harmondsworth (excluding Zealand Avenue and Pinglestone Close), Sipson and Elbow Meadow in Poyle will be required in 2022. It is anticipated that Zealand Avenue and Pinglestone Close would be required in 2026 but these will be affected by construction from 2022.

Heathrow has developed a discretionary enhanced compensation offer where we will buy eligible properties for the open market value plus a home loss payment of 25%. For homeowners, this will be available via the Home Purchase Bond Scheme.

Our Property Policies Information Paper provides details of our compensation offers and eligibility for the schemes.

Wider Property Offer Zone

The above offer also applies for eligible residential properties in the Wider Property Offer Zone.

Both zones referred to above are shown on the map above.

How we will help

We recognise this could be a difficult time for home owners. Our plan is to provide support through our Home Relocation Support Service, where home owners require additional assistance to move home.

It is our intention to protect the most vulnerable owners. We have introduced an interim Property Hardship Scheme that assists those who have a compelling need to move but who are unable to sell their house on the open market, by selling their property to Heathrow.

Commercial and other property policies

Our interim property policies also include the support that is available for commercial and agricultural land and property owners.

Beyond the Compulsory Purchase Zone

Beyond the Compulsory Purchase Zone there are other areas of land which may be needed for associated infrastructure, environmental mitigation and other uses to facilitate the project. The draft Development Consent Order Limits are the extent of land beyond the Compulsory Purchase Zone where we may need to exercise DCO powers for the construction or operation of the project. There are no residential properties beyond the Compulsory Purchase Zone anticipated to be required for acquisition for the project.

Further information is available in the Property Policies Information Paper.

Register your interest

We are keen to hear from residents who are interested in the Home Purchase Bond Scheme and are considering views as to when homes could be sold to Heathrow. We have sent a Contact Request Form to residents and would like to receive responses during consultation.

We will provide more details of the Home Purchase Bond Scheme, including the intended launch date, as soon as we finalise our interim property policies, which will take account of feedback received and once we have clarity on regulatory policy from the Civil Aviation Authority. You can complete the Contact Request Form online at aec.heathrowconsultation.com/compensation or can e-mail us at [email protected] to arrange a follow-up with a member of our team.

You can find further information on our compensation offers in our Property Policies Information Paper. We are seeking feedback on the policies as part of this public consultation.

Airport infrastructure

Around Harlington we will need to make changes to airport car parks, hotels and some of your public transport routes. Please see the images and map below for more detail.

1. The northern parkway – new car park near Harlington
We need to change how we manage car parking. We propose to create multi-storey car parks closer to main roads to free up space and to reduce traffic on local roads. We propose putting the northern multi-storey car park to the east of the M4 Spur. It will be up to 40m high, about the same as the Holiday Inn near Junction 4 of the M4. We propose to start building it in phases after the runway opens.
2. New public transport & cycle links
From the northern parkway we will provide fast links to the terminals for passengers and local residents. We are designing new cycle paths and walking routes as part of the Green Loop. These will run from West Drayton south into the airport and from Harmondsworth through Sipson and on to Harlington and beyond.
3. New hotels & commercial buildings
We need to move some hotels to make the space for the runway. We also need new hotels for the increase in passengers and airline crews. We propose putting them in places with good access to the terminals. This means close to the northern parkway and the Emirates Roundabout.
Map of airport infrastructure in your area

Green space around the villages

We are proposing to make improvements to the landscape surrounding Harlington and Cranford Cross, with the aim of creating an enhanced green setting for the villages.

Little Harlington Playing Fields will also be re-located as part of our proposals.

We will increase the planting along existing roads, including along the south side of the M4, to provide screening and enhance biodiversity connecting habitat sites to the east and west.

The Green Loop will pass through the landscape providing the community with enhanced routes for people walking and cyclists that will link into existing ‘active travel’ routes.

Heritage and conservation

We have assessed the quality of the heritage buildings and areas such as Cranford Park and the Harlington Conservation Area to understand the consequences of our proposals. We will work with the council and local communities to identify opportunities to enhance these historical places. Cranford Park offers additional opportunities for biodiversity.

Encouraging wildlife - Wildlife corridor
Enhance corridors for wildlife and biodiversity and strengthen the European Protected Species network through improvements to existing areas
Strengthening communities - Little Harlington playing fields
Reprovision and enhancement of the Little Harlington playing fields
1) Enhanced open space with upgraded footpaths and links to the wider area. 2) Reprovided public open space. 3) European Protected Species corridor. 4) Additional areas for biodiversity. 5) Sipson recreation ground


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 roads and traffic

Changes to roads

To make space for the runway we will need to divert the A4 Bath Road and close Hatch Lane. We are doing lots of analysis to plan new or diverted routes and to minimise disruption in the local area.

The new A4 will come from Colnbrook, over the M25, past Saxon Way and to the north of Harmondsworth. It will then head round Sipson and across the M4 spur where it meets the new parkway. It is then routed to the south to re-join its old route to the east of the M4 spur.

The new A4 will provide a link to the new northern parkway: the new multi-storey passenger and staff parking. The parkway will provide shuttle access to the terminals and on to Central London and other places by bus, coach, tube and train.

Bus and cycle priority will be provided.

Changes to roads in your area
Landscape buffers, pedestrian and cycling routes
Airport boundary - Harlington

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 - Harlington and Cranford Cross - 2022
Construction traffic supporting the expansion of Heathrow is expected to be highest in late 2022/early 2023, just prior to the expected opening of the proposed construction rail link. However, as the proposed access routes for construction traffic would not pass through or close to Harlington and Cranford Cross, no changes to traffic flows are forecast in this area in 2022.
Changes to traffic - Harlington and Cranford Cross - 2035
Results of preliminary transport modelling indicate that in 2035, once the expanded airport is fully operational, daily traffic levels could be higher on Cranford Lane and Sipson Lane as a result of expansion, but that traffic would be lower on the High Street, and on Langley Crescent and New Road.

Air quality – Harlington and Cranford Cross

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 Harlington and Cranford Cross 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 detail on air quality, please see Local overview – Air quality.

Noise in Harlington and Cranford Cross

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

Construction noise

The construction of the new runway, roads and parkway will generate noise. All our construction activities will follow a Code of Construction Practice (CoCP) 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.

Road noise

The majority of the community in Harlington will benefit from decreased noise levels due to reduced road traffic. Part of the community, closest to the new A4, is likely to experience increased noise levels. Cranford Cross is unlikely to experience any increased noise effects from road noise due to expansion.

We will review the need for noise insulation, screening and very low noise road surfacing as part of the Environmental Statement to reduce noise further.

Ground noise

There will also be noise on the ground from aircraft moving around the airport and from their maintenance and testing.

Noise effects from ground noise are likely to be experienced across parts of the community closest to the existing airport boundary in Cranford Cross.

To reduce ground noise, we are proposing noise barriers around the airport.

Aircraft noise

The impact of aircraft will be different in different parts of this area.


Harlington does not currently have flights overhead but noise from the airport can be heard in the village.

The new runway will mean much more noise from aircraft landing and taking off directly over the community of Harlington for the first time.

Cranford Cross

Cranford Cross currently has flights overhead when the existing northern runway is used by arriving flights on westerly operations. The runway is not currently used for departures when on easterly operations because of the legacy of the “Cranford Agreement” which means we do not provide runway alternation on easterly operations.

Before the new runway opens we are planning to introduce runway alternation on easterly operations this will mean departures from the existing northern runway over Cranford.

Reducing noise effects

We have a number of proposals and plans in place to reduce these noise effects, which are described within Local overview – Reducing noise effects.

We will offer noise insulation to eligible local residents. Insulation will include things like improved double or secondary glazing, ceiling over-boarding, external doors and where needed roof ventilation.

Noise insulation may be provided to eligible community buildings that are likely to be affected by noise in Harlington and Cranford Cross.

Runway use to control noise

How we run our three-runway airport in the future will be key to controlling aircraft noise in local communities. Alternating runways will provide respite from aircraft noise.

Choosing which runway is being used for take off and landing and when aircraft arrive and depart during the night are the main ways we can control noise:

Runway alternation

We are proposing that we change how we use the runways at either 2pm or 3pm everyday. The runway alternation patterns will repeat every four days (so day five will have the same pattern as day one). See image below.

Night flights

We propose to introduce a ban on scheduled night flights of 6.5 hours between 11pm and 5:30am. Our proposals ensure that, in normal operations, Harlington and Cranford Cross can expect at least 7 hours when aircraft will not be flying overhead between 10pm and 7am every night.

Also, if you are overflown in the late evening (after 11pm) you will not be overflown in the morning (before 6am).

What will this be like in Harlington and Cranford Cross?

The illustration below shows what this would mean for daytime and night-time respite in Harlington and Cranford Cross over a 4 day period. The green colours show periods of respite, and the orange colours show periods of direct overflight.

Whether Harlington and Cranford Cross gets noise from aircraft overhead will depend on the direction of aircraft (heading east or west) and which “mode” the runway is being used in. The modes are landings only, departures only or “mixed- mode” (both landings and departures).


For example, when aircraft are taking off to the west Harlington will not get noise overhead when the new runway is being used for departures. It will get noise when it is being used for landings and in mixed mode.

When planes are taking off to the east, Harlington will not get noise overhead when the new runway is being used for arrivals. It will get noise when it is being used for departures and in mixed mode.

Cranford Cross

For example, when aircraft are taking off to the west, Cranford Cross will not get noise overhead when the existing northern runway is being used for departures. It will get noise when it is being used for landings (the existing northern runway will not be used in mixed mode).

When planes are taking off to the east, Cranford Cross will not get noise overhead when the existing northern runway is being used for arrivals. It will get noise when it is being used for departures.

Harlington and Cranford Cross

When there is no noise overhead, there will still be noise from aircraft on the ground and on the existing runways. The Harlington and Cranford Cross communities will hear noise from aircraft engines as they taxi from the terminals to the runway for departure. The engine noise will increase as the pilot accelerates away down the runway to take off but there would be no aircraft overhead.

For more information on our proposals please see Future Runway Operations 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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