Bosses behind Kent’s priciest development insist sales are “on track” as a huge decision on the project's next phase is set to be made tonight.

The prestigious Shoreline Crescent located right on Folkestone beach is the first stage of a wider multi-million-pound masterplan for up to 1,000 seaside homes from philanthropist Sir Roger De Haan.

Shoreline is made up of 64 apartments and 20 townhouses, with prices ranging from £395,000 to £2.1 million - and questions have repeatedly been raised over their affordability.

When asked by KentOnline this week how many of the homes have sold, Sir Roger’s Folkestone Harbour and Seafront Development Company (FHSDC) refused to provide a figure. In September, we revealed sales had been agreed for 15 out of 84 units.

As an incentive to attract more buyers, the company is now offering to pay 2% of the purchase price towards stamp duty.

It means, for example, that someone buying one of the £1.9 million beach houses would be able to save almost £39,000. However, this would still leave them with a stamp duty bill of £105,000.

An FHSDC spokesperson said: “We can confirm that we are currently running a sales promotion that offers, for a limited period, a 2% discount on all properties towards the cost of stamp duty for anyone buying a home at Shoreline.

“In terms of sales, we are on track with our expectations and see continued healthy interest across the board from a range of buyers, both from within the local community and new inward investment to the town.

“Buyers recognise the quality of the development and the coastal lifestyle that Folkestone offers.”

It comes as a decision on the next stage of the masterplan, which already has outline planning permission, is set to be made by Folkestone and Hythe District Council this evening.

The planning committee will consider whether to approve designs for 410 new homes in the harbour area, with 141 of these being one-bed flats and 217 two-bed apartments.

The ambitious proposals, which would dramatically change the seafront’s skyline, have been recommended for approval by council officers.

The new tower blocks would be constructed on the car park of the hugely popular harbour arm and surrounding land, resulting in a total loss of 240 parking spaces for visitors.

Previously Sir Roger, one of the UK’s richest people, said the Shoreline properties “won’t be able to be used as Airbnbs at all”.

But KentOnline revealed bosses had backtracked on this, with some of the homes now available for up to £1,050 a night as part of a try-before-you-buy initiative.

Two of the beach houses are being advertised as a “luxurious holiday experience” and a two-bedroom apartment could also soon be added.

FHSDC told KentOnline this week there are “no plans to extend the small number of holiday rentals” that they offer.

The homes being let are not yet sold and are being managed by the company rather than private owners.

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People who do buy a Shoreline property will be allowed to turn them into Airbnbs if they wish.

Doug Acton, sales and marketing director at FHSDC, previously said the holiday lets have been a “huge success” but insists no “wild parties” will be allowed.