Plans for a major housing development on a London Underground station car park will cause “traffic chaos”, neighbours have warned.

They have urged Harrow Council to reject proposals for 277 new homes across seven blocks up to 11 storeys high on the car park at Stanmore Station, in London Road.

It is part of plans by Transport for London (TfL) to provide hundreds of affordable homes in the borough – schemes have also been put forward in Canons Park and Rayners Lane.

However, to allow for the development, the number of spaces at the car park will be cut by almost a third (32 per cent).

And those living close to the site in Stanmore believe it will have a detrimental impact on the surrounding area.

Objector Phil Kerstein said there will be “traffic chaos” both during and after construction due to the changes to site, with an expected overspill due to the loss of spaces.

And, despite the development being deemed car free, Mr Kerstein noted that there is nothing to stop new residents owning cars and parking nearby.

This could be mitigated by preventing new residents from applying for parking permits for nearby controlled parking zones, though issues could remain around parking outside of these hours.

In any case, Mr Kerstein explained that the potential use of taxis and the coming and going of delivery vehicles would impact on the area.

He added there are also concerns the size and scale of the development, suggesting it will be “overbearing” to those living next to the station.

Cllr Marilyn Ashton, who represents Stanmore Park ward, has previously criticised the proposals suggesting local people are “uniformly against” them.

She suggested TfL has got the process “badly wrong” and that the area would “never get over it” if the scheme was to go ahead.

TfL was keen to highlight the positives of the project and said it had consulted extensively with the public and would “continue to do so”.

Jonathan Cornelius, head of property development at TfL, said: “Our plans at Stanmore will deliver 100 per cent affordable housing with sustainable links into central London and beyond as well as new pocket parks.

“The development, which will be delivered with our partner Catalyst, will see 277 new affordable homes built on the current station car park while retaining two thirds of the current commuter spaces.

“It will also improve step-free access to the station and provide new cycle parking spaces to further encourage active travel.”

Those wishing to comment on the application can do so on the council’s planning portal, searching P/1221/20 – the deadline for this is Monday (July 20).