If you dreamed about building on the sea: Instead of pleasing or persuading others, you should consider whether you are convinced yourself. just focus on your own wishes, dear Leos. To see a building in the sea in your dream indicates that you will get away from some people and devote yourself to your work, look at life better by removing the people who harm you from your life, and smile. Building a building on the sea in a dream indicates happiness and a person whose heart does good works.