The aim of this article is to explore the current situation on the sea coast of Latvia, coastal buildings and objects. Coastal zone is one of the places where constructions and buildings with simple functions should be situated, for example, shower, toilet and relaxation space. In this article the term “coastal zone” corresponds to the definition used in the Law on Protective Zones. By using natural, ecological and energo-effective materials and constructions, it is possible to save energy and conserve the environment. Public opinion on the need to make changes in Latvian coastal area was ascertained using a poll open to local and all other interested respondents. It is displayed with the help of diagrams. Consideration is given to examples of global environmental objects, analysis of the principles of good design and sustainable development. The key conclusion is that good design needs functionality. General guidelines for coastal constructions and buildings with primitive functions (toilets and showers) in coastal zone of Latvia were developed within the framework of this work.