His work mainly consisted of designing mondain hotels, villas and mansions for members of the French and European aristocracy and other elite who resided in the area.

Hans-Georg Tersling was born on a farm outside the small town of Karlebo north of Copenhagen, Denmark.

He trained as a carpenter before attending the architecture school of the Royal Danish Academy of Fine Arts, receiving his diploma in 1879.

After his graduation, Tersling travelled to France where he was employed by Charles Garnier to work on the Monte Carlo Casino where he completed the Salle Schemitt.

The first of these, Villa Cyrnos, completed in 1892, was built for Eugénie de Montijo, the last Empress consort of the French.