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Villa Paradiso, Monte Argentario, Tuscany, Italy, €10m
Where On a peninsula within the Province of Grosseto, about 150km south of Florence and connected to the mainland by three spits of land, which form two lagoons. Florence airport is 125 miles away, which takes about two-and-a-half-hours by car.
What A villa built over the foundations of an ancient Roman villa. The property has 1,000 sq metres of living space, nine bedrooms (including a three-bedroom staff apartment) and a lift to all floors, set within a hectare of land.
Why The house has panoramic views from its raised position, and private access to the sea, 10 metres from the gate, allowing the owners to swim from the stone steps within the old Roman walls.
Who Precious Villas, preciousvillas.com, tel: +44 20 7467 5330
Cluain Alainn, Ballydehob, County Cork, Ireland, €1.2m
Where On Roaring Water Bay, four miles south of Ballydehob, 60 miles from Cork airport and 226 miles from the capital, Dublin.
What A three-bedroom main house with 2,200 sq ft of living space, including a new sea-facing conservatory. There is also a one-bedroom guesthouse within the 2.5 acres of grounds.
Why In Ireland owners can only buy up to the high tide mark. However, the shingle beach at the property is only accessible via a private slipway. Schull sailing club is five miles away.
Who Charles McCarthy, charlesmccarthy.com, tel: +353 28 21533
The Summit, Providenciales island, Turks & Caicos, Caribbean, £5.8m
Where On Grace Bay, 10 minutes from Providenciales international airport and two fixed-base operators catering for private jets.
What A seven-bedroom, waterfront property, built in 2001 and divided into three buildings, with a boardwalk along the 200ft-long private beach. Within the 1.43 acres of tropical vegetation and landscaped grounds is a pool and a waterfall.
Why Grace Bay was rated the second-best beach in the world in the 2014 TripAdvisor Travellers’ Choice awards. This particular private stretch overlooks a ribbon reef.
Who Hamptons International, hamptons-international.com, tel: +44 20 7265 6595
Beachwood, Binstead, Isle of Wight, UK, £2.9m
Where Close to Quarr Abbey, 2.5 miles from Ryde, where the high-speed passenger ferry to Portsmouth takes 22 minutes. There are airfields at Sandown and Bembridge, both five miles away.
What A New England-style, four-bedroom house with a private beach and 5,404 sq ft of living space. A fifth bedroom is set above the double garage. Within the 6.2 acres of grounds is a pool, pool house and sun terrace.
Why The property comes with 60 metres of beach frontage up to the mean low-water mark. A boathouse and jetty could be built with planning consent.
Who Knight Frank, knightfrank.com, tel: + 44 20 7861 1098
7 Harbor Point, Key Biscayne, Florida, US, $25m
Where On the island of Key Biscayne set within a national park, just over the Rickenbacker Causeway, and 10 miles from Miami airport.
What A seven-bedroom, 10-bathroom house built in 2010, with 10,674 sq ft of living space. The property features a covered entry bridge over a pond and an infinity pool with views over Downtown Miami.
Why The house is the only one on the island with a private beach and boat dock. The bay is a natural reserve for dolphins and sea turtles.
Who One Sotheby's International Realty, onesothebysrealty.com, tel: +1 305 776 8785