The Journées du Patrimoine (Heritage Days) are coming to Paris and the Île-de-France region for their 42nd edition, which promises to be a richly rewarding event. Every year, this cultural event offers us the chance to explore our heritage from every angle, with visits that are often free of charge, special events and even exceptional openings.
In the Paris region, each edition sees venues of all kinds lend themselves to the game: museums, monuments, major institutions, churches, fashion houses, hospitals and more. So everyone can find a program to suit his or her passion at this not-to-be-missed event, which takes place this year on the weekend of September 20 and 21, 2025.
Would you like to conquer the castles of the Île-de-France region? During the Journées du Patrimoine (Heritage Days), these historic sites are obviously on the agenda. If you'd like to explore the heritage of the Essonne département, or if you're a local, now's the time to (re)discover the Domaine de Courson, located in Courson-Monteloup. Here, you'll discover a château listed as a Historic Monument and a French-style park labeled a Remarkable Garden. The Domaine is taking part in this year's Journées du Patrimoine, and is unveiling its program!
To mark the European Heritage Days, the water tower on the Courson estate is exceptionally opening its doors to the public. Usually closed, this unusual building, nestled in the heart of the landscaped grounds, reveals its secrets during an exclusive guided tour.
On three levels accessible only during the weekend, discover how this curious edifice, halfway between technical prowess and architectural elegance, once provided the estate's water supply. This tour will take you back in time to understand the ingenuity of the various hydraulic systems from the 17th century to the present day.
It's a rare opportunity to delve into the bowels of a little-known heritage and take a different look behind the scenes of a great historic estate.
For the European Heritage Days, young and old alike are invited to discover Le Secret de l'Architecte, a captivating treasure hunt through the avenues of the Parc de Courson!
Your mission? Find the little buildings hidden in the landscape: an ice house, a water tower, a greenhouse, a children's pavilion... At each stop, you'll find a riddle to solve and a letter to collect to piece together a mystery word.
A fun, family-friendly way to discover the park's architectural heritage and understand the vision of Louis-Martin Berthault, the landscape architect who transformed Courson in the 19th century.
On the occasion of the 2025 European Heritage Days, the Château de Courson opens its doors to you for an exceptional guided tour with a focus on architecture.
From 17th-century classicism to 19th-century remodeling, from the discreet elegance of its facades to the organization of its interior spaces, Château de Courson is a remarkable example of French noble residence architecture.
Accompanied by a guide, discover how this place has evolved over the centuries, through the tastes, eras and skills that have shaped its current appearance.
This tour invites you to take a fresh look at the château: not just as a residence, but as a work of architecture, conceived in dialogue with the park, light, symmetry and materials.
Take a walk in the heart of nature to discover a discreet but essential architectural heritage: icehouses, water towers, greenhouses, bridges, pavilions... So many small, often forgotten buildings that bear witness to an art of living and a vision of architecture integrated into the landscape.
Conceived as a living tableau by landscape architect Louis-Martin Berthault, the Parc de Courson harmoniously blends nature and buildings, function and aesthetics. Every building has its place, subtly staged between groves, paths and water mirrors.
A leisurely stroll to discover a heritage of plants, history... and architecture.
Dates and Opening Time
From September 20, 2025 to September 21, 2025
Location
Domaine de Courson Park
91680 Courson-Monteloup
91680 Courson Monteloup
Official website
www.domaine-de-courson.fr
