man in a gray business suit

Host your business conference or event at the Palace

We warmly welcome business and event planners to organise their conferences, meetings, and events at The Palace at Osowa Sien (Palac Osowa Sien).

Though each occasion is unique in its planning, the palace has a variety of spacious rooms and salons suitable for a number of corporate and private occasions.

Fancy a dedicated facility without the interruption of public visitors or another company’s event attendees as well? We’d be happy to oblige you. When you require a minimum of 6 overnight suites + conference rooms - exclusive use of the property is possible.

For specific details on arrangements, room logistics, meals, and accommodations, please call +48 794 341 846 or email

Price list:

Meeting room only, no accommodations required  - Priced from 25 zł / person.

All meeting rooms come set up with chairs, tables, pens, note paper, whiteboard, and mineral water. Projector and/or audio equipment extra.W

Food and Drink Possibilities:

  • Unlimited drinks station including tea/coffee/mineral water– from 35 zł/ person

  • Snacks (including sweets, fruits, and pastries) – from 35 zł/ person

  • Bistro sandwiches and salads - from 39 zł/person

  • Tapas – ideal during happy hour – from 49 zł/ person

  • Self-Serve Lunch Table with a mix of local and artisanal goods – from 59 zł/person

  • Three-course late lunch (soup, main, dessert) - from 79 zł/person

  • Dinner-time tasting menu (multi-course) – from 95 zł/ person

  • Supper (starter, main bread, and condiments) - from 79 zł/person

  • Business Banquet – from 169 zł/person (minimum 40 people required)

desk in das Dienerzimmer suite

Accommodation Offer

The Palace Osowa Sien has 10 suites within the palace walls, each ranging from 30-45 square meters and suitable for 1-4 guests per. For meetings and conferences, we can accommodate up to 32 guests at a preferred business rate, secured in advance.

For businesses or groups that reserve suites for 20+ people, one main conference/meeting room is free of charge – a gift from us.

Breakfast and parking is included in the price of the accommodation.

In the case of a work event, early check-in and late check-out is also available. 

The preferred overnight corporate rate is priced from 145 zł per person, based on suites with double occupancy. Suits for individuals begin at 200 zł.

one of the palace at osowa sien's meetings rooms


  • 84 square meters

  • Best Fit: 36-66 people

  • Seating Style(s): Conference, Classroom, U-Shaped, Theatre, Banquet

  • Projector, Screen, whiteboard, and speakers available, included in price

  • Price: 35 zł/ person, seating and tables included in price.

Located on the main floor, the most symbolic salon in the palace has a grand layout characterized by generous bay windows. Curtains can be opened or closed to control light. Workshops, formal dinners, and conferences are ideal in the space. 

The Dining Room

  • 44 square meters

  • Best Fit: 10-20 people

  • Seating Style(s): Conference, Theatre, Banquet

  • White board available, included in price

  • Price: 25 zł/ person, seating and table(s) included in price.

This room has a calm and comfortable, albeit exclusive feel. The statement table hosts 10 people for small strategy sessions, or meetings and other seating configurations are available for larger events. This room opens to the ballroom and grand hall, making it ideal for large events.

...a great place with an amazing atmosphere.
— Wojciech, Poland
wine can be enjoyed at palace osowa sien after business meetings


The Parlour

  • 54 square meters

  • Best Fit: 16-25 people

  • Seating Style(s): Conference, Theatre, Banquet

  • White board available, included in price

  • Price: 25 zł/ person, seating and table(s) included in price.


Typically, setup with round and oval tables, this room is ideal for events in need of break-out space or an overflow room. This room opens up to another similar space of an additional 50 square meters.Seating for 30-50 people, table configuration depending, is possible when combined.

 The Cellar

  • 42 square meters

  • Best Fit: 12-25 people

  • Seating Style(s): Lounge Style

  • Price: 17,50 zł/ person, seating and table(s) included in price.

Located in the 19thcentury basement of the Palace, it is defined by the vaulted red-bricked ceilings and Romanesque tiled stone floors. Sporting its own piano, and steps to the terrace outside, it has a nice relaxing feel to it. Its size can increase when doors are open to the terrace or cellar hall beyond.

Beautiful building. Stylish decor. Cozy...
— Alexander, Germany
palace osowa sien red Olivetti typewriter from the weichselkirschen suite

The Lounge                                 

  • 69 square meters

  • Best Fit: 15-45 people, when combined with cocktail tables in hall

  • Seating Style(s): Permanent lounge set up, cocktail tables available in hall 

  • Price: 25 zł/ person, or +9 zł/ person when combined with another room rental

                                                            Defined by oversized Chesterfield statement sofas, fireplace, and baby-grand piano, this room is ideal for after-work relaxation and drinks.



Multiple Rooms 

Multiple rooms may be booked for a special rate, depending on the size and needs of your group.

When you book overnight accommodations, conference room rates are additionally reduced.

Special pricing available for weekday events, certain conditions apply.

Modern comfort in beautiful historic surroundings. Highly recommended!
— Klaus, Denmark
the castle wine cellars at palace osowa sien



Wine Tasting

The palace can organize wine tastings for business groups of 10 or more individuals. During the tasting, a trio of wines (100 ML each) will be presented alongside tasting notes and information about the grape variety, vineyard, its history and importance.

Tastings can be conducted in the castle cellar or on the terrace outside.

Cost from 30 PLN per person.



Horse Drawn Carriage Ride around the Countryside 

We work with local stables to provide guest groups with memorable horse drawn trips around the western Polish countryside that we call home.

Carriage rides for up to 5 people available starting at 275 PLN per hour, with additional hours available at a discounted rate. Wagon rides for up to 18 people available starting from 250 PLN per hour, with additional hours available at discounted rates. Advance bookings necessary to guarantee availability.  

Happy Hour

Events are best when they balance work and play. As such, we offer the opportunity for a scheduled ‘happy hour’ after a long day at the office or an ideal way to conclude an afternoon conference.

Happy hour features a set bar menu at a preferred rate. All beers are regional craft selections available in 500 ML bottles. Wines have been carefully chosen from boutique family vineyards from Germany, France, and Italy.

Happy hour is excusive to your group and may be set up on the palace terrace, in the lobby, lounge or in the cellars below. 

The Park

Our estate features a large historical park with open space as well as refuge from the sun under the canopy of our 300-year old trees. This offers the ideal space for event planners to set up their own games, activities, mix and mingle sessions, or attractions like bouncy castles. 


The palace is located minutes away from the Przemęcki Park Krajobrazowy, a beautiful forest full of trails and characterized by its many lakes and streams. For more adventurous groups who wish to take an afternoon hike, this is the perfect oasis. Afterwards, guests are encouraged to return to the palace for a happy hour or grill session