Townhouses in a luxury seafront complex which made headlines after emitting a mysterious high-pitched “whistling” noise have hit the market for £2.1 million.

Homes at Shoreline on Folkestone beach will soon be available for wealthy buyers, with townhouses starting at £1.85 million and flats at £430,000.

The complex recently came into the spotlight when neighbours complained of a high-pitched noise coming from the balconies in the wind.

Bosses at Folkestone Harbour and Seafront Development Company said work to stop the shrill sound would happen “imminently”.

The apartments were first listed last month, and the swanky homes are going on sale this weekend.

Each of the 20 townhouses has a roof-top terrace, four bedrooms, four bathrooms and a front and back garden.

The most expensive has two terraces, a cellar and a lift to all six floors.

With the high price tag, the development has received criticism over a perceived “gentrification” of the seaside town.

Georgina Baker, who has lived in Folkestone all her life, fears people from the town will not be able to afford to buy any of the Shoreline Crescent homes.

“It’s gentrification and will push people out of their own town, which is really sad,” she said.

The 51-year-old launched a petition in the summer – which received more than 8,000 signatures - in a bid to halt the project which, in its entity, is expected to create 600 homes, retail and leisure facilities.

Advertising the most expensive property, estate agent Carter Jonas said: “This six-storey beachfront townhouse offers unobstructed breathtaking sea views.

“Wake up to the sound of waves crashing and savour sunsets over the water from the comfort of your own home.

“It has front and rear gardens, a roof terrace enjoying views of the gardens, and a second roof terrace with sea view.

“Perfect for al-fresco dining, sunbathing or stargazing all to the familiar sound of the seaside.

“Whether it's your primary or secondary residence, there is the safety of secure underground parking which conveniently leads into the cellar, ideal for storing bikes, surfboards, kayaks and garden furniture.”

Folkestone Harbour and Seafront Development Company is owned by billionaire philanthropist Sir Roger De Haan.

The former Saga boss previously insisted that he was not trying to gentrify the town with the development.

He also revealed that owners will be banned from turning the homes into Airbnbs, a big concern of residents.