Located on a hillside above the city-state ofMonaco, Beausoleil is surrounded by theTête de Chien andAgel mountains.
It is urbanistically contiguous with the principality and shares some streets, as theBoulevard de France, theBoulevard du Maréchal Leclerc, and theAvenue du Maréchal Foch. Its house and neighbourhood designs also blend in with those on the Monagasque side of the border, in effect forming anurban area with Monaco.
The commune is intertwined with Monaco. It functions to some extent as abedroom community as many of its residents are employed in Monaco. The main part of the town consists ofBelle Époque houses with ornate entrances. Attractions within Beausoleil include theGustave Eiffel covered market, St Joseph's Sanctuary (a church with ornatestained-glass windows) and the Fontdivina Fountain and Wash House.
The town's border with Monaco was largely fixed during the 18th century. What is now known as Beausoleil was administered fromLa Turbie prior to 1904, when the town was incorporated. Along with otherFrench communes adjacent toMonaco, the electorate has traditionally had a sizable proportion which is left-leaning: Roger Bennati,mayor of the town 1989–1995, served underCommunist affiliation.Monaco's political parties are more right-leaning.