Simple, effective, budget under control
€85–130
20 to 200 people- Study day, 30–80 people
- Team kick-off




The château reflected in its moat, the Great Stables, the Prix de Diane: just 25 minutes from Paris CDG, Happy Unity orchestrates your seminar in Chantilly from start to finish. Equestrian, gastronomic, and unforgettable.
















































SEMINAR FORMATS IN CHANTILLY
A residential seminar in a forest estate, a plenary session under the domed riding arena of the Grandes Écuries, or an executive committee meeting at the château: Chantilly combines prestige with immediate proximity to CDG airport.
8 FORMATS
Team cohesion · 1–2 days
Re-establish connections, integrate new profiles, and foster team spirit. This format refocuses the team on what truly matters: getting to know (or re-acquainting with) each other, building trust, and moving forward together.
WHO IT'S FOR
Growing teams, post-recruitment, service mergers
SAMPLE SCHEDULE
ORCHESTRATION IN CHANTILLY
In Chantilly, exceptional venues are privatised by application, and logistics revolve around arrival via CDG. We prepare the requests with the Domaine and coordinate transfers, catering, and activities from France.

Event Expert
A dedicated Event Expert and their team, easy to reach, who know your project inside out. Reverse schedule from D-60, backup plan, on-the-day management.
1 Expert
per project

Venues
Grandes Écuries, château reception rooms, private mansions in Senlis, or residential châteaux in Picardy: each setting tells its own story.
200+
partner venues

Catering
Caterers with character, bespoke kitchen brigades, local producers. From the seminar brunch to the gala dinner, we create a table that leaves its mark.
150+
partner caterers

Accommodation
4- and 5-star hotels, private villas, characterful country houses. Single rooms by default, rooming handled from A to Z.
1,200+
room nights a year

Logistics
Transport, security, welcome, event management, technical: every ancillary service is run by our teams. You arrive, your employees are looked after.
All-inclusive
5 services

Team building
A catalogue of 100+ tried-and-tested activities, and a creative team that designs bespoke. Surprise choir, giant quiz, live DJ.
100+ activities
+ bespoke
SEMINAR VENUES & AREAS IN CHANTILLY
From the château to the forest estates of Oise, each area has its own identity. We help you target the setting that matches your objective and your group.
Prestige · Executive CommitteeThe château and its exceptional stables
The château and its privatisable Grandes Écuries form the most exclusive setting in Oise. The Salons d'Honneur, Capitainerie, and equestrian gala dinners are perfect for executive committee meetings and receptions of rare prestige so close to Paris.
Equestrian · 20–400 peopleThe most spectacular equestrian setting
The most beautiful stables in the world (1719), fully privatised: Horse Museum, domed riding arena, and 240 horses. A spectacular and unparalleled setting for your plenary sessions, cocktail receptions, and gala dinners.
Premium · SportVIP stands in the heart of the turf
The Prix de Diane racecourse, available for privatisation out of season: VIP stands, private boxes, and lawn. For a large-scale seminar imbued with the spirit of equestrian sport, for up to 1,000 participants.
Nature · OutdoorSix thousand hectares of royal forest
The 6,000-hectare state forest is an ideal playground for outdoor activities: horse riding, quad biking, hiking, paintball. Forest estates with accommodation are available for immersive residential seminars in the great outdoors.
Culture · PremiumMedieval streets and preserved ramparts
Just 10 minutes from Chantilly, Senlis is one of the most beautiful medieval towns in Île-de-France. Gallo-Roman ramparts, a Gothic cathedral and privatisable private mansions offer an unusual and authentic setting for a seminar.
Residential · 10–150 peopleCountry châteaux for full immersion
Within a 20 to 30 km radius, discover privatisable châteaux and manor houses with accommodation. Equestrian farms and agricultural estates offer a countryside residential seminar 45 minutes from Paris, for total immersion.
ACTIVITIES & TEAM BUILDING
Horse riding initiation in the racehorse stables, a Chantilly cream workshop based on Vatel's recipe, a rally in the château gardens or quad biking in the state forest: the activities are deeply rooted in the estate's identity. Each format is adjusted according to the group.
Olympics
See the activities
Mystery games
See the activities
Trails & rallies
See the activities
CSR & Wellbeing
See the activities
Construction
See the activities
Quiz & TV games
See the activities
Casino & Stalls
See the activities
Creativity
See the activities
Culinary
See the activities
Music & Dance
See the activities
200+ PARTNER VENUES · 3 TIERS
Between hotels in Chantilly town and residential estates in the Oise region, fifteen or thirty minutes away, the offering covers everything from intimate executive committee meetings to large conventions, with a favourable setting-to-budget ratio.
Simple, effective, budget under control
€85–130
20 to 200 peopleSeminar venues ready to go: well organised and fully equipped
€145–220
50 to 500 peopleTruly exceptional, with the character that leaves its mark
€280–650
30 to 800 peopleWHY CHANTILLY
Chantilly brings together everything that makes a seminar memorable: a fairytale château, the most beautiful stables in the world, a royal forest – and perfect proximity to Paris airport.
Chantilly is 25 minutes from Charles de Gaulle Airport, accessible from Paris Gare du Nord (30 min by train) and Paris CDG (direct shuttle). Ideal for international teams arriving directly by plane.
Private château hire, Great Stables with an equestrian dome, racecourse, Oise manors, forest estates: a diverse range of exceptional settings within a 15 km radius of the château.
Chantilly cream was invented here by Vatel, the Grand Condé's head chef. Picardy terroir, royal forest game, gourmet dining: Chantilly is a top-tier culinary destination.
The Chantilly national forest (6,000 ha) and equestrian trails offer an exceptional natural setting. Amidst racehorses, forest paths and the banks of the Oise: complete disconnection.
Tell us your group size, your date and what you want to achieve: your Event Expert sends you a costed proposal within 24 hours. Free, with no commitment. Prices in euros, excl. VAT.
Indicative pricing · the final price depends on the venue, the season and the options you choose
PLENARY ACTIVITIES IN CHANTILLY
The domed riding arena of the Grandes Écuries and the Domaine's rooms offer rare plenary settings in the Parisian region. Stage, control room, and working sessions are organised within spaces classified as Historic Monuments. Between two talks, our seminar activities — from twenty minutes to three hours, set up in your room — get the group moving again.

Inspiring speakers, recognised experts, testimonies from business leaders. We suggest a line-up suited to your message and to your group's energy.

Leadership team facilitation, collective intelligence, co-creating a vision. Experienced facilitators who move difficult topics forward as a group.

Decision-making escape game, crisis simulation, business role play. Learning by doing: without the PowerPoint, and without the glazed look after 20 slides.

Opening ritual, icebreaker for senior leaders, memorable close. The right format for the 30 people who don't want to "do team building".

World Café, Design Thinking, Open Space, Liberating Structures. We facilitate the formats that bring out genuine collective intelligence.

An hour-long talk followed by a hands-on workshop. A format that doubles retention and halves passive time.
THE CHANTILLY SEMINAR GUIDE
Seminar in Chantilly: equestrian art at the service of your events
Happy Unity has been organising corporate seminars in Chantilly and Oise since 2006. Iconic venues include: privatised Grandes Écuries (400 people), Château de Chantilly, the racecourse, and forest estates in Oise. From an executive committee meeting for 12 people to a convention for 500, or even a corporate party in Chantilly: Chantilly adapts to all formats, with exceptional access from Paris CDG.
DIGITAL TOOLS FOR YOUR EVENT
Two tools designed for two different audiences: you, the organiser, and your participants.
FOR YOU, THE ORGANISER
A dedicated space that helps you organise your event with your Event Expert: from design to review.

FOR YOUR PARTICIPANTS
An app developed in-house by our own technical team, not rented from a third-party provider. 100% customisable to your brand and your programme.
MY SEMINAR
128 participants
KEY FEATURES
CLIENT AREA
DIGITAL APP
HOW DO WE WORK TOGETHER?
Advice only, co-piloting or fully turnkey: we adapt to your team and to the complexity of your seminar in Chantilly.
Our method, your management.
We lay the foundations: brief, design, budget, supplier selection. You deliver with our method and our recommendations.
Can be tailored to your context
Fees from €720
· + suppliers
We handle everything upstream, you approve.
The most popular package: we take care of everything from A to Z before the day itself. Venue, activities, hotel, catering. You approve, we deliver.
Can be tailored to your context
Fees from €950
· + suppliers + supervision
You arrive. We've handled everything.
Everything in Co-pilot, plus full on-site presence on the day. Event management, welcome, guest flow, transport: you arrive at an event that runs like clockwork.
Can be tailored to your context
On quotation
· overall budget under control
THEY TRUST US
“Everything was simply perfect. Lucile, full of excellent advice, knows her profession, her services, and her providers inside out! It was all handled very smoothly with her fantastic team. In short, a seminar we won't forget and one I highly recommend. We were 70 people for a day with 3 highlights.”
Thierry Larchier
Verified Google Review

“We selected Happy Unity to assist us with a team building activity as part of a seminar for 38 managers from our bank in Marseille. The proposed activity met our ambitions and was a great success. A big well done to the entire team.”
Marie-Adeline Nittis
Verified Google Review

“I called upon Happy Unity for the organisation of a team building event during a seminar. Everything went perfectly from the very first exchanges. Communication and responses were fluid and fast. A very good experience. I highly recommend them.”
Fanny Legrand
Verified Google Review

CHANTILLY SEMINAR FAQ
Chantilly brings together a fairytale château, the most beautiful stables in the world, and a 6,000-hectare royal forest, all just 25 minutes from Paris-CDG airport. It's a destination perfectly suited for international teams arriving directly by plane, without passing through Paris. The equestrian and gastronomic world (Chantilly cream was invented here by Vatel) gives your event a setting that tells a story, a rare find so close to the capital.
Chantilly is accessible by train from Paris Gare du Nord in 30 minutes, by car via the A1 in approximately 50 minutes depending on traffic, and by shuttle from CDG in 25 minutes. Its location between Paris and the airport is an asset for international groups: we organise direct transfers from CDG to Chantilly without a detour via Paris. Shuttles from the station are coordinated for a grouped arrival.
The Domaine de Chantilly, with its château and Grandes Écuries, targets the prestige of executive committee (CODIR) meetings and gala dinners (20 to 500 people). The racecourse and its VIP stands accommodate large-scale sporting events for up to 1,000 people. The national forest is suitable for outdoor activities (10 to 200 people), and the private mansions of Senlis, 10 minutes away, offer an intimate medieval setting. For residential seminars, the estates of Picardy extend the experience in a rural setting.
Yes, the Grandes Écuries (1719), classified as a Historic Monument, can be privatised in full or in part: the Horse Museum for corporate parties of 20 to 400 people, the domed riding arena for plenary sessions, and the stables for cocktail receptions, with the horses present. It is the most exclusive format in the Parisian region. We prepare the application files and coordinate everything with the Domaine team.
Chantilly offers excellent value for prestige. The budget depends on the format, venue, number of participants, duration, and chosen services, from a corporate party in the Grandes Écuries to a residential seminar in a forest estate in Oise. Such settings remain difficult to find elsewhere so close to the capital. After an initial discussion, we will propose a selection of venues and a detailed quote tailored to your project.
Chantilly town has the Château de la Tour and quality hotels, but the best value can be found in the Oise estates 15-30 minutes away: privatised châteaux with rooms for 10 to 60 participants, equestrian farms with lodges. We have a selection of a dozen residential estates around Chantilly. We choose them according to the group size and the desired level of immersion.
Chantilly is suitable for all seasons. Spring, from April to June, is the most spectacular with the gardens at their peak and the forest in bloom, but be aware of the Prix de Diane weekend in June, which saturates availability. Autumn offers superb forest colours, and winter is perfectly suited for indoor events in the Grandes Écuries or the château.
Yes. Chantilly racecourse organises races from May to October: we reserve VIP boxes for your group during races, or privatise the racecourse out of season for a private race day. The Prix de Diane, on the first Sunday of June, is the most festive event, with boxes needing to be booked approximately six months in advance. It's a unique way to immerse a seminar in the spirit of equestrian sport.
The equestrian identity of the estate opens up unique experiences: an introduction to horse riding in the racehorse stables, a gala dinner in the Grandes Écuries, a riddle rally in the château gardens, or electric quad biking in the national forest. The Chantilly cream workshop, based on Vatel's recipe, remains the destination's signature gastronomic activity. Each format is adjusted according to the group's size and objective.
Yes. We take care of the complete orchestration: preparing privatisation applications with the Domaine de Chantilly, catering (original Chantilly cream, prestige caterers, forest game), activities, transfers from CDG and Paris Gare du Nord, and accommodation in Oise. You arrive, your teams enjoy, and we ensure on-site coordination on D-Day.

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1 rue de l'Union · Marquette-lez-Lille
6 rue Duret · 75016 Paris
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Happy Unity
Corporate events
Phone
01 79 75 15 16
Mon – Fri · 9 am – 7 pm (Paris)
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