About
Domaine Le Mezo, in Southern Brittany, France
Le mezo, event venue
It is not just a castle, a simple reception hall, or a seminar center. The Event Estate is a hybrid creation, designed to embrace the diversity of today’s events. A unique venue, designed to perfectly meet the expectations of both businesses and individuals. It combines the elegance of an estate, the flexibility of a professional space, and the emotional intensity of a cultural venue. It is not a static setting; it is a place to experience, to shape, and to make your own—designed for rich experiences and for the memorable moments that bring people together.
An exceptional living space, surrounded by nature, nestled in the heart of the Gulf of Morbihan Regional Nature Park. Domaine Le Mezo is a human, social, local, and welcoming adventure. It is an experience to be lived and relived, through stays, celebrations, fine dining, and moments of relaxation. It is an experience lived every day by our guests, our diners, our teams, and our partners.
Introduction
A sense of community and local spirit
When you choose Le Mezo for brunch, dinner, or a stay, you’re not just a customer, you become a part of our story. A family-run business driven by a team of 50 passionate employees, where each person plays a vital role in maintaining the quality and excellence that define us.
A Family-Owned and People-Centric Business
Le Mezo is, above all, a family-owned business where every employee enjoys stable working conditions and compensation tailored to the unique demands of the hospitality and restaurant industry. Working at Le Mezo also means embracing the challenges of the profession: weekend shifts and irregular hours, but always with the support of a close-knit and caring team.
Our team, our strength
Our employees, whether on permanent contracts or as apprentices, share a common passion for service. We invest in ongoing training and support for young talent, as they are the future of our establishment and our professions. Our teams do not merely meet our customers’ expectations; they strive to exceed and elevate them.
Supporting Local Producers
We are committed to promoting the local economy by partnering with regional producers, thereby ensuring that our customers receive fresh, high-quality products. This approach is part of our dedication to supporting the local economy while offering an authentic experience to our visitors.
Preserving Our Heritage
Le Mezo also comprises a park and buildings that we take great care to maintain. Maintaining and renovating these historic sites is a challenge we proudly take on every day. This not only helps preserve our heritage but also ensures an exceptional setting for our guests.
Contributing to a thriving local economy
Finally, the revenue generated by Le Mezo does more than just support the business. It helps energize the local economy by creating jobs and fostering commercial exchanges within our community.
THE STORY of a transformation
Marie and Sébastien, the two founders of Domaine Le Mezo, fell in love with the place the moment they discovered it in 2019. To acquire and restore this remarkable site, they brought together a team of wonderful partners and collaborators who were committed to preserving this heritage. A successful endeavor after more than two years of work, the transformation of Le Mezo has brought this exceptional place back to life.
Looking back in history, Domaine Le Mezo first appears in records in the 15th century. The château was built in the second half of the 18th century on the site of an old manor house first mentioned in 1427. Later, the outbuildings, the shed, and the greenhouse appeared in historical records starting in the second half of the 19th century. This entire historical heritage has been adapted to its era to continue its journey through the centuries.
Our manifesto values & intentions
highlighting
heritage
conviviality
& sharing
NATURE
& RESPECT
HIGHLIGHTING HERITAGE
PRESERVING HISTORY
A preserved and enhanced historical heritage
The earliest traces of the buildings at Domaine Le Mezo date back to the 15th century. This is a historical heritage that we have preserved and enhanced. The Château, with its cornice, moldings, and frescoes; the stables and barn, with their stonework, openings, and exposed beams… All the buildings have been renovated to restore their former splendor, but also to be lived in today and endure for tomorrow. You and we will be its guardians, preserving the memories of the past and the legacy of history, while creating those of tomorrow and the legacy of Le Mezo.
A Transformation from One Century to the Next
A Project in Step with Today’s Challenges
Le Mezo transformation project and the renovations carried out have been deeply shaped by today’s challenges. The project took root amid the turmoil of a health crisis, when the desire for nature, for reconnection, and for a getaway close to home became palpable. But above all, it emerged from the need for a collective commitment to the climate and the preservation of biodiversity. We thus aim to anchor Le Mezo in this new era, with its new challenges. Join us in this mission!
CONVIVIALITY & SHARING
Collectively ours
A vibrant community space created through collective effort
Le Mezo project came to life thanks to the support and collaboration of numerous public and private partners, as well as the personal support of friends, family, and colleagues. Today, Domaine Le Mezo—the events celebrated there, the moments of life shared there, the memories forged there, and the daily commitments made there—is collectively yours, collectively ours. We can thus be proud of the challenges we’ve overcome and the collective result we’ve achieved: a welcoming living space, open to the world and brimming with life.
Opening up and discovering oneself
Moments of life to share
Coming together. Sharing stories. Remembering. Meeting. Helping. Supporting one another. Working. Loving. To love. To marvel… All of this at once is Le Mezo. A place to share happy and warm moments. A place to work together and build tomorrow. A place to open up to others, to life, and to oneself. It is also a place to try new things and perhaps discover a new passion or new ambitions.
Nature & respect
Nature Takes Center Stage
A Rich Variety of Flora and Fauna
Thanks to its location in the heart of the Gulf of Morbihan Regional Nature Park, Domaine Le Mezo is blessed with abundant natural beauty. We have made nature a central focus here and will always place great importance on it. The English-style park and the forest of century-old trees, where you can stroll, enjoy a meal, and watch numerous plant and animal species grow and thrive. The orchard and vegetable garden provide seasonal harvests “Made In Le Mezo.” But simply observing and enjoying isn’t enough! We must maintain and develop this reservoir of biodiversity. We have therefore undertaken, and will continue to undertake, actions to serve this purpose.
Engage and commit
Concrete actions for the environment
We are genuinely concerned about the impact of our activities on biodiversity and the local environment. During renovations, we made sure to use the best materials, from thermal and sound insulation to the installation of an energy-independent heating system powered by on-site fuel production (miscanthus), with support from ADEME. We are taking steps to obtain certification for the estate. We will also encourage every guest and visitor to respect the surrounding biodiversity and to act responsibly during their stays and events. See our commitments >
Our Social and Environmental commitments
We want to contribute to the vitality of our beautiful region, its residents, artisans, and workers. We are aware of the environmental impact of Domaine Le Mezo’s operations and are firmly committed to minimizing it. That is why Le Mezo and its teams are dedicated to sustainable tourism and recreation, in line with the region’s priorities and in close collaboration with local partners.
Le Mezo in action
TOUT
2020-2023
2024-2026
From the initial construction work to earning the European Ecolabel in 2026, Domaine Le Mezo has been building its sustainability initiative step by step. Every action contributes to transforming the estate into a more sustainable, vibrant model that is more deeply rooted in its local community.
Today, Le Mezo employs more than 70 people, who are dedicated every day to bringing the estate to life, welcoming our guests, and embodying this vision in everything we do.
Green Globe
Domaine Le Mezo obtains Green Globe certification, an international benchmark for responsible tourism and events.
European Ecolabel
Awarded the European Ecolabel, official recognition of the environmental commitments of Domaine Le Mezo.
Bike Path
Improving bike signage to encourage visitors to reach the shore of the Gulf of Morbihan from Le Mezo via the bike path.
Le Mezo Orchard
Planting an orchard featuring local and heirloom varieties (apple, pear, cherry, and plum trees) with the goal of promoting these varieties and turning the fruit into juice.
100 trees planted
Planting more than 100 trees on the estate by 2025 to enhance biodiversity, create new shaded areas, and support the landscape development of Le Mezo.
CSR Awards
Le Mezo has won the CSR Award and the Sustainable Event Award for its commitment to sustainability in the corporate events and seminars sector.
Expanded Vegetable Garden
Expansion of the estate’s vegetable garden to strengthen the connection between Le Mezo kitchen, the seasons, and the produce grown on-site.
Living Inventory
Creation of a directory of Le Mezo’s biodiversity, including flora and fauna, to track its changes year by year and better protect it.
Nature Workshops
Team-building activities centered on the natural world: repotting, planting, trees, and nature appreciation.
Beneficial Insect Meadow
Creation of a Nova-Flore area comprising 24 species of wildflowers that support beneficial insects and promote ecological balance.
Birdhouses
Installation of birdhouses on the estate to encourage local wildlife and enhance natural habitats.
Smart Lighting
Installation of Astro timers that adjust nighttime lighting based on sunset times to optimize energy consumption.
Herb Garden
Creation of a herb garden near the kitchens, allowing chefs to use aromatic herbs, plants, and edible flowers throughout the seasons.
Flowers of Le Mezo
Wedding bouquets made with flowers grown on the estate.
Filtered Water
Water filters have been installed in several accommodations and are freely available at the resort’s central location to enhance guests’ comfort and reduce the use of plastic bottles.
Solar Shade Structures
Installation of photovoltaic shade structures that help generate a portion of the estate’s electricity consumption.
Subtle Lighting
The decision was made not to illuminate the park or the trees in order to minimize the impact on nocturnal biodiversity and energy consumption.
A Living Refuge
Creating spaces that support wildlife: nesting boxes, passageways, and ladders for hedgehogs, as well as areas for shelter and feeding.
First Harvest
The first harvest of miscanthus on the estate, used for mulching the plantings and vegetable garden, and for providing energy for the buildings.
First Beehives
Installation of the first beehives to promote pollination and support biodiversity on the estate.
Preserved Plants
Preserving as many existing plants as possible during construction and gradually introducing plant species suited to the site.
Sustainable Materials
Incorporation of passive solutions into the lodges: high-performance insulation, wood-frame construction, wood wool, cork, and green roofs.
District Heating Network
Creation of a district heating network supported by ADEME, powered by wood chip boilers using wood sourced from a local supply chain.
Renovation Underway
Renovation of Le Mezo’s historic heritage with a team of construction experts, skilled tradespeople, and local contractors.
Energy Management Active and Passive Technologies
At Domaine Le Mezo, reducing energy consumption is based on a comprehensive approach: combining passive solutions—integrated into the design of buildings and spaces—with active technologies dedicated to energy production, control, and optimization.
This combination makes it possible to limit energy needs at the source, prioritize local and renewable resources, and ensure guest comfort year-round.
Passive technologies Designing Buildings That Are Naturally More Energy-Efficient
Passive technologies refer to all design choices that reduce energy needs even before technical equipment is used.
At Domaine Le Mezo, this translates to:
- Enhanced thermal insulation for buildings, using natural, high-performance materials such as cork in the lodges.
- Wood wool insulation panels, particularly in the reception hall, the club, and the pool area.
- Lodges with wood-frame construction and wood siding, promoting the use of bio-based materials.
- Large openings and floor-to-ceiling windows to maximize natural light and minimize the need for artificial lighting.
- Optimized orientation of the buildings and openings to take advantage of natural solar gain.
- Shade sails in outdoor spaces to limit direct sun exposure.
- Natural materials with high thermal inertia, such as wood, lime plaster, or certain thick textiles.
- Cotton sheer curtains to filter natural light and limit excessive heat gain.
- Green roofs on the lodges, contributing to insulation, thermal regulation, and stormwater management.
- A heavily landscaped environment that naturally contributes to the site’s thermal comfort.
- A design that promotes natural ventilation to minimize the need for air conditioning.
These choices help reduce energy needs at the source while improving the thermal comfort of spaces in a natural and sustainable way.
Active technologies Generating, Managing, and Optimizing Energy
In addition to passive solutions, Domaine Le Mezo relies on high-performance equipment to generate part of its energy, better manage energy use, and optimize daily consumption.
Among the measures implemented:
- Biomass boilers, fueled by wood and pellets, to prioritize renewable and local energy.
- Geothermal energy via boreholes at the lodges, powering underfloor heating and cooling systems.
- Photovoltaic panels installed on-site, contributing to the production of renewable electricity.
- An electricity supply sourced 100% from renewable sources.
- Regular monitoring of energy consumption to adjust usage over time.
- Optimization of technical equipment, notably by turning off devices in standby mode and improving usage management.
- Miscanthus plots cultivated on the estate, intended to partially fuel the biomass boilers. Miscanthus covers part of the site’s energy needs, with an estimated self-sufficiency of 3 to 4 months.
These active technologies complement the site’s design by enabling more precise, localized, and responsible energy management, enhancing guest comfort and driving continuous improvement in the estate’s environmental performance.
Plan your trip at Domaine Le Mezo
Château du Mezo, Route d’Arradon
56880 PLOEREN
The switchboard is open from 8 a.m. to 8 p.m., Monday through Sunday.
Sales department available Monday through Friday from 9 a.m. to 6 p.m.
