Your Home Away From Home

Welcome to The Palace at Osowa Sien, your private retreat in the heart of the Polish countryside. Whether you’re planning a quiet family getaway or a lively gathering with friends, this estate becomes your exclusive home, offering space to relax, reconnect, and make memories that last a lifetime.

Perfect for celebrating special occasions—be it a cherished holiday, a milestone event, or simply a summer escape—the palace provides the ideal setting to slow down and savor time together.

Picture cooking meals together in the fully equipped kitchen, unwinding in spacious family suites, or celebrating after a mean game of croquet in the park.

Every corner of the palace is crafted to inspire comfort, warmth, and togetherness—whether you’re gathering for a festive meal or simply enjoying each other’s company. At The Palace at Osowa Sien, every moment feels like home—because it’s not just a place you stay; it’s a place that becomes yours.

Venue Highlights

Accommodation

The castle comfortably hosts up to 46 guests in uniquely designed suites and rooms, perfect for singles, couples, families, and friends. With flexible layouts, rooms can be configured with double or single beds, and even pets are welcome—with their own plush beds. Thoughtfully designed for extended stays or weeklong getaways, every detail creates a warm, inviting atmosphere.

Exclusive Use

While here, the entire castle is yours to enjoy. This exclusive setting ensures total privacy, where children can explore, adults can relax, and everyone can come together in a personal, intimate environment. The relaxed, family-friendly atmosphere invites you to unwind, connect, and create lasting memories—maybe even start new traditions

Versatile Spaces for Celebration

The castle is designed to bring people together. Host dinners or themed parties in the ballroom, then move to the adjacent dance floor. Gather around the kitchen table for casual snacks or cook together in the fully equipped kitchen—the heart of any home.

Unwind in the cozy fireplace salon, perfect for reading, relaxing, or exchanging gifts by the fire in winter. Enjoy movie nights in the wellness studio with a 3.5 x 2.5-meter (11.5 x 8.2 feet) screen, or step outside to the serene park for games, picnics, BBQs, or stargazing.

Every space is designed to let you savor the moment.

Hear From Our Friends & Family Groups

"The Palace is beautiful. Our group of 11 had the perfect ending to our 13-day trip to Europe. Accommodations were fantastic, breakfast was great and we had the fairy tale dinner. I can't say enough about the treatment we received and how nice the hosts are. I would highly recommend visiting and would love to go back again."

— Brett Fickler, Friend's Group, 2022

See hundreds of our other 5-star reviews on Google, here.

Services & Experiences

Cooking & Catering

Whether your group loves to cook together, bring in a private chef, or have everything taken care of, we offer flexible options to suit your style. Go fully self-catered with a well-equipped kitchen, mix home cooking with local dining, or let us handle it all with farm-to-table, family-style dining experiences.

Wellness and Recreation

Unwind in the Finnish sauna, book a yoga session with our trusted local instructor, Martyna, or treat yourself to massages inspired by local traditions of herbs, wine, and honey. For a change of pace, explore nearby lakes like Lgiń, with its new swim lanes and pier, or Lake Sława, where you can swim, go motorboating, or simply enjoy the scenery. Find more inspiration on our Explore tab.

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Transportation

Getting here is easy—whether by car, plane, or transit. We're just off the highway for a smooth drive, with POZ (Poznań) and WRO (Wrocław) airports nearby and charters from Berlin straight to our doorstep. Guests can also take a train to Leszno or Wschowa, then continue by taxi or private transfer for seamless travel.

Our Offer

Plan Your Friends or Family Getaway

Exclusive-use castle stays for you and yours — meant to feel like home, if home were a castle.

Every stay includes:

Private use of the castle and 5-hectare estate — no other guests, ever.
Accommodation for up to 46 guests (40 beds) across 12 unique rooms and suites.
Essentials provided: Wi-Fi, linens, towels, utilities, and parking.
Flexible dining options: self-catered stays, stocked pantries, or full-service catering.
Wellness add-ons: sauna, massages, yoga, and more.

Whether you’re planning an annual party weekend with friends from Berlin or a weeklong retreat for the whole family, The Palace at Osowa Sien gives you the location, amenities, and atmosphere to make it one-of-a-kind.

It’s not just a venue.
It’s your private castle—your home for the stay.

Ready to start planning?

Send us a note at hello@castlerental.com with your preferred dates, guest count, and whether you’d like to self-cater, have the pantry stocked, or go all in on our farm-to-table experiences.

Friends
& Family