In this sense, the “OMONIA” hotel was innovative. Along with the provision of modern accommodation facilities for the time (double rooms, shared toilets on each wing and floor, two shared kitchens, 1 oven and shower in the bathing areas), the hotel had two individual baths, with modern bathtubs, so that the bathers to be fully serviced with their thermal baths within the hotel.

The thermal water was transported from the source located at a distance of about 200 meters, with the help of animals, stored in a special tank and channeled to the individual bathers after being mixed with cold thermal water to reach the desired temperature, according to the medical instructions for each bather.

Architecturally and spatially, the hotel, when it was erected, with plans by the NTUA civil engineer, Adamantios Saliaris, smoothly joined the hillsides and can, without exaggeration, be described as a tasteful architectural specimen in the Agiasmata area at that time. Together with the house of G. Kaloutas, who was the manager of the antimony mining company’s quarries, they were the two buildings that, built in a traditional way and with respect for the environment, dominated the coast of Agiasmata, one on the right and the other on the to the left of the river Arvanos. The Kalutas house, unfortunately, was left to collapse, after the mines were abandoned.