Taylor Swift is spending thousands of dollars on creating a new sea defence wall to protect her ocean-front Rhode Island mansion.

The pop singer purchased the lavish home in the Watch Hill neighbourhood in early 2013, and now she is splashing out on improvements to the property.

Several large construction vehicles have been photographed at the site building a huge sea wall on the beach, according to Connecticut's The Day newspaper.

A man was arrested on suspicion of trespassing at the property in July (13) after allegedly swimming up to the singer's property from the nearby public beach.