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Régie 373
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THE FIRM · OUR STORY

Pierre du Niton · 373.6 m

RÉGIE · GENÈVE

Why 373?

Because a managing agent should be what a certain stone in the bay of Geneva is: a fixed point, in a market that never stops moving.

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01 · 1820

An engineer was looking for a point that would not move.

He found it in the bay.

In 1820, the Geneva engineer Guillaume-Henri Dufour was looking for a fixed reference. Two granite blocks break the surface of the bay, torn from the Mont Blanc massif and carried here by the Rhône glacier. On the one farther from the shore he set a bronze plate: the Pierre du Niton.

Federal survey of the Pierre du Niton: plan of the bay, 1:200 detail of the block and 1:10 detail of the marker.
FEDERAL SURVEY · DETAILS 1:200 AND 1:10
02 · TWO BLOCKS

Two stones. Only one carries the marker.

The Pierre Dyolin and the Pierre du Niton.

They are still there, opposite the Jardin anglais. The one closer to the quay is the Pierre Dyolin. The second, a little further out, carries the bronze bolt. Surveyors call it RPN: the Pierre du Niton reference.

RPN · 373,6 m PIERRE DYOLIN PIERRE DU NITON
03 · 373.6 METRES

373.6m

The legal horizon of Switzerland.

Since 1902.

Since 1902 the marker has stood at 373.6 m above sea level. It is the horizon of the Swiss height system: every altitude in the country, every spot height, every contour line, every building plan is measured from this stone. From Lake Maggiore, the lowest point in Switzerland at 193 m, to the Dufourspitze, its highest summit at 4,634 m, every metre of the country refers back to this small granite block in the Geneva harbour. A nod from history: the summit bears the name of General Dufour, the very man who had the Pierre du Niton set in place.

RPN · 373,6 m PIERRE DU NITON · FROM ABOVE
193· LAKE MAGGIORE 373,6· RPN 400 500 1000 2000 4634· DUFOURSPITZE
Gaël Constantin, director of Régie 373, in front of an old map of Geneva.
04 · GAËL CONSTANTIN

A passion for real estate.

Director of Régie 373.

Gaël Constantin has always worked in real estate, and has made it his passion. In 2015 he co-founded Homenhancement SA in Geneva, a specialist in furnished medium-term rentals. Ten years on, the company manages some 850 homes across Switzerland, from the Octagon residence in Geneva to the Tilia tower in Lausanne. With Régie 373, he returns to the heart of the trade: managing a property over the long term, with the same care for the owner as for the tenant.

Everything measured in Switzerland starts from a stone in Geneva.