Concerns were raised in Parliament by local MP Seema Malhotra on Thursday (February 2).
However transport secretary, Chris Grayling, confirmed there is no such plan in place, however there are proposals to create a smart motorway on the M4.
In a letter to Chris Grayling dated January 31, Ms Malhotra said: "I understand the department made a statement to the media to the effect that this proposal will not be going ahead and that there are no current plans for land acquisition of property in the vicinity of Winchester Avenue.
"However, recent Parliamentary Written Answers to me seem to again suggest that the proposal is under consideration."
Original references were made to widening the M4 in the Airports Commission surface access strategic road network proposals, published by Highways England in October.
Speaking in parliament, Ms Malhotra added: "The document includes proposals to widen the M4.
She added: "The government made a statement to the media two weeks ago to the effect that that would not go ahead, but the answers to written questions that I have received have not been so clear.
"Will the Secretary of State confirm that those proposals will not go ahead, and that there will be no land or property acquisition in Heston?"
The question was raised on the day that the government's public consultation on a third runway at Heathrow were published.
In response Mr Grayling said in Parliament: "I can be absolutely clear about this.
"There is no plan to widen the M4, although there is a plan to create a smart motorway on the M4.
"There is no plan that I am aware of, or that I have discussed in any way, shape or form, to start buying houses in her constituency for a wider M4, and I have not seen a budget for that either, so she can take it from me that there is no plan to widen the M4."
Keep up to date with the latest news in west London via the free getwestlondon app
You can even set it to receive push notifications for all the breaking news in your area