Leigh on Sea, commonly known as Leigh, is a coastal town situated in the unitary authority of Southend-on-Sea in Essex. With its historic roots as a thriving fishing and boat-building community, Leigh on Sea has evolved into a sought-after residential area blending seaside charm and vibrant local culture. The town is well-known for its characterful Old Leigh, where weatherboarded cottages line cobbled streets and working boats still tie up along the creek.