A place steeped in history.

Gut Klostermühle

The lakes north and south of Briesen are located in the Falkenhagener Rinne. It was formed after the Ice Age when the meltwater drained away. In the 14th century, monks built a watermill, a fisherman's cottage, and a forester's lodge at the narrowest point. From 1542 onwards, the land and buildings belonged to the Madlitz estate. In 1759, after the Battle of Kunersdorf, Frederick the Great took up quarters in the nearby Madlitz Castle and stopped at the mill. “The soup is delicious,” Old Fritz is quoted as saying after the meal. After these events, the road that now leads through the Klostermühle estate was called Königsstraße (King's Road) for many centuries. Throughout history, Emperor Wilhelm II often went hunting in the forests of Madlitz. He had a friendly relationship with his head forester, Curt Metzner, who lived in the forester's lodge and spent his free time building violins and researching sound. In the course of land reform, the estate owner was expropriated in 1945. The East German secret police established an officer training ground and a vacation facility for their employees at the Madlitz mill. Today, the grounds at Madlitz Lake, known as “Gut Klostermühle,” offer first-class relaxation for those seeking respite. It is a good place to hide away and find oneself. On this page, we will regularly compile short stories about the origins of this unique place for you.

Here, history is “carved” in stone.

What our reliefs mean.

The Klostermühle estate has been home to many residents in the past and is a place steeped in history. This inspired Mr. Brune to add exciting details to the facades of the Klostermühle and Fischerhaus, which were reconstructed based on original photos. Above each window, you will find reliefs handcrafted by the builder and architect that tell over 100 years of history.

“Harvest time” These reliefs depict the grain harvest of the farmers in the region around Alt Madlitz.

“Mill” The first relief shows the mill. The second shows the miller's family, with Mr. Brune sneaking his own likeness into the picture. The stagecoach on the third relief indicates that the mill also served as a coach station in the 19th century.

“Fishing” Fishing has always played an important role on Lake Madlitz. In the 18th century, the village had only 100 inhabitants. These included a blacksmith, a wheelwright, a miller, and a fisherman. The reliefs depict the fish population, such as eel, pike, and zander, as well as fishing nets.

“Stories” The fisherman and his wife, probably one of the architect's favorite stories, was immortalized in the first relief. Cannons in the second relief bear witness to the wars that this place has experienced. The most beautiful, elaborate, and meaningful relief towers above the mill's entrance door. It tells of the time when the Stasi still resided here and the later struggle with the lower nature conservation authority during the planning and construction of the hotel complex.

The Reception Then & Now

Hard to believe.

Our reception building tells a fascinating story: originally a low-rise building with seven prefabricated garages, it was lovingly adapted to the historic neighboring buildings by Mr. Brune during his planning in 2006. After completion and opening in 2008, it now shines in all its glory. In our hotel reception, you will find four workstations for our reception staff and a cozy lounge. In addition to the reception area, the building houses a small shop and our events office. Two storage rooms and a fully converted attic complete the picture. An exciting innovation is coming in the next few weeks: the gas boiler will be replaced by a new energy-saving heat pump to further strengthen our contribution to environmental protection.
 

Fully biological wastewater treatment plant

In the SBW process.

At Gut Klostermühle, we have been operating a fully biological wastewater treatment plant (sequential biological treatment) since we opened.

  • In a reaction chamber, the wastewater undergoes four stages of treatment with the aid of activated sludge.
  • First, bacteria are added to the wastewater.
  • In the second stage, the wastewater is aerated and circulated using a compressor.
  • After the settling phase, during which flocculants are added, all solid components sink to the bottom.
  • In the final step, the treated water is pumped out and fed into a small pond, where the reed belt quietly filters out the nitrogen.

The water is already so clean that many small creatures have settled in and around the pond. To regulate the water level, the water is regularly sprinkled with rain.

Bio Flam wood chip plant

For our own district heating system.

Since January 2010, we have been operating a wood chip heating system on the estate to generate heat for most of the hotel complex. Wood chips are small pieces (approx. 5 cm in size) of wood waste from natural forest wood.

  • The nominal output of the system is 407 kilowatts.
  • It is stored in a storage bunker next to our riding hall.
  • The wood chips are transported to the boiler for combustion as needed via a conveyor system.
  • The small amount of ash is automatically discharged by a vibrating mechanism.
  • Flue gas cleaning is carried out by a multi-cyclone dust separator and the heat demand is automatically regulated.
  • The Fontane and Debruyn houses with the Finckenlounge and tunnel facility, the Kleist house, the forest and fisherman's house, the spa area with theater forum, the monastery mill and monastery barn, and most recently the riding hall are supplied with the in-house district heating.
  • The use of this system with local fuel is CO2 neutral. Fun fact: 10-15 cubic meters of bulk material replace approx. 1000 liters of heating oil.

WE ARE SETTING AN EXAMPLE FOR THE ENVIRONMENT!

We have been GreenSign certified since October 27, 2021. GreenSign is the leading sustainability certificate for the hotel industry in Europe, but has also established itself internationally with over 270 certified hotels in 15 countries. What does this mean?

  • The award is presented by the InfraCert Institute for Sustainable Development.
  • The more than 100 criteria cover eight core areas of sustainable management (management and communication, environment, biodiversity and cultural heritage, purchasing, regionality and mobility, quality management and sustainable development, social and economic responsibility).
  • The integrated action plan offers ideal sustainability strategies for better structuring processes and working more efficiently.
  • An independent auditor checks the information directly on site.
  • Depending on the hotel's commitment, it is classified into GreenSign Levels 1 to 5.
  • Hoteliers receive a qualified report/sustainability statement.
  • The certificate is valid for 3 years.
     

Leisure time at Gut Klostermühle

And in the Oder-Spree Lake District

In the entrance area of the Fischerhaus, you will find our “interactive leisure planner” for the Oder-Spree Lake District. A screen that allows you to find out about the region in advance and put together your own individual plan. You can also find our excursion planner on our homepage, giving you the opportunity to plan your activities before you arrive.

Active on the estate:

  • Table tennis, badminton, and boules on the lake meadow (equipment is also available at the reception desk)
  • Our small playground is located behind the monastery mill.
  • Row across Lake Madlitz (rowboats can be borrowed at reception)
  • Geocaching around Lake Madlitz
  • The 4 km route around the lake is the perfect start to the day for running or walking.

Blue pearl necklace at the gates of Berlin

The Klostermühle estate in Altmadlitz is not only located directly on Lake Madlitz, it is also only a few kilometers away from the Falkenhagener Seen Ketten (Falkenhagener Lakes Chain). The lakes are strung together like a string of pearls. The northern chain of lakes flows into the Oder River and the southern chain into the Spree River. It is the perfect starting point for hikes through the Odervorland (Oder River Valley).

  • The Gabelsee lake is about 7 km from the Klostermühle estate. Via Wilmersdorf, you can hike through a charming hilly terminal moraine landscape far away from the major traffic arteries.
  • A few kilometers further on is the Schmielensee lake in the middle of a nature reserve.
  • Schwarzer See, about 8 km from the estate, is a wonderful place to walk around. The path leads through varied terrain, through forests, over bridges and footbridges. In summer, there are two bathing areas where you can cool off, and the Schweizer Haus invites you to take a coffee break with a magnificent view. The lake covers an area of approx. 35 hectares and has excellent water quality.
  • If you turn around at the Black Lake, you will immediately see the 25-hectare Burgsee. Only a road separates the two lakes at their narrowest point. The northern part of the lake is surrounded by forest, while most of the fishing spots are located on the southern shore.
  • A 10-minute walk takes you to the mill pond. There are also several swimming spots here, and the water quality is checked regularly.

Completely self-sufficient water supply

Even before the first hotel buildings were completed, heavy equipment was brought in here at Lake Madlitz. The plan was to supply the entire hotel complex with groundwater, either partially or, in the best case scenario, completely independently. It was a risky undertaking with strict requirements, but it was successful. Today, there are three wells on our property, which have been supplying the entire hotel complex since the beginning:

  • There are two 54-meter-deep drinking water wells and one 50-meter-deep firefighting well.
  • The pumps are located at the deepest point.
  • The drinking water filter system removes iron and manganese and enriches the water with oxygen.
  • The drinking water is subject to constant monitoring by an external laboratory.
  • The water law permit regulates the permitted withdrawal quantity very precisely.

The wastewater is treated in our own biological treatment plant, stored in a bio-pond, and in summer it rains down on the horse paddocks.

KLOSTERSCHEUNE THEN & NOW

The barn was also built by Carthusian monks in 1441. Before reunification, it served as a garage and storage room. The cellar, which had been filled in by the previous owners, was probably used by the monks as a house of prayer instead of a church. During the construction phase of the overall “Gut Klostermühle” project, the barn was used as a storage facility for materials. In 2006, planning and conversion began to create the current Klosterscheune restaurant. The interior was completely gutted, and a gallery and fireplace were installed. The cellar now serves as a wine cellar. A new extension was built for the kitchen and staff area. The vaulted cellar with its beautiful natural stone walls and valuable vaulted masonry was also exposed, elaborately lowered, and is now one of the highlights of the dining room. The necessary service rooms in the basement were built into the hillside. The exterior walls on the ground floor with their natural stone were preserved in their original form.
In 2021, a 645 sq ft extension with a view of Lake Madlitz was added to create more seating capacity. A modern lighting concept was installed, a new bar was built, and the new ambience was also adapted to the old building. The exterior façade of the extension was also elaborately upgraded with a natural stone base to preserve the overall appearance.

OUTLOOK FOR OFFICERS ONLY

HISTORY OF OUR RESIDENCE HOUSES

Our two residence houses, “Fontane” and “De Bruyn,” were also built on old foundations. Planning began in 2006, and the design takes into account the historical architecture found in Brandenburg villages. Both houses were deliberately designed to be environmentally friendly. Warm materials with lots of wood inside and outside were intended to promote integration into the heavily wooded landscape. The “Fontane” house stands on the foundations of a single-story building that used to house officers' apartments with beautiful lake views. The “De Bruyn” house was built on the foundations of a two-story building that STASI officers used as a forest café. The result was two hotel buildings with 32 rooms and suites, most of them with a fantastic view of Lake Madlitz.

The rooms are directly connected to the “Fischerhaus” on the level 10 meters below via an elevator and a tunnel system. The tunnel also provides dry access to the spa area and the “Finckenlounge” breakfast restaurant on the mezzanine level.

RIDING HALL INSTEAD OF BOWLING ALLEY

  • Before reunification, our imposing riding hall was supposed to serve as a bowling alley for the Stasi. The shell of the building, from the basement to the roof, had already been completed by the Stasi, but the bowling equipment had not yet been unpacked. Some also rumored that the long corridors in the basement were intended as a shooting range for small-caliber weapons.
  • Planning for the riding hall began in 2004. The aim was to use a construction method that was in keeping with the landscape and nature.
  • The conversion and demolition of the old barracks took a whole year, with everything except the windows being built by the Klostermühle estate's own employees. The roof truss is also made entirely of pine wood from the estate's own forest.
  • Sloping embankments allowed light to enter the basement rooms, creating spacious horse stalls and storage rooms.
  • On the ground floor, there is a 20x40 m indoor riding arena with a stage.
  • The outbuilding, a low-rise building with prefabricated garages, was also demolished and replaced with a spacious riding stable in the same architectural style, with 18 horse stalls, 9 with paddocks, a washing area, and its own horse solarium.
  • The facility, consisting of an indoor riding arena, riding stable, and a 50 x 100 m outdoor riding arena with a 20 x 60 m dressage arena, was completed in 2006.

If only our theater forum could tell stories...

...it would be entertaining audiences with amusing anecdotes from personalities such as Armin Müller Stahl, Jochen Kowalski, Ludwig Güttler, Jochen Busse, Gerlint Böttcher, Hugo Egon Balder, Anja Kruse, Jacky Schwarz, Wolfgang Winkler, Franziska Trögner, and Wolfgang Lippert. Cabaret, readings, ballet performances, and classical music evenings fascinated audiences alike. But first and foremost, our theater is one of Brandenburg's most beautiful conference rooms, whose history began long before it opened: when the Stasi still resided at Madlitzer See, the building on whose foundations the Theaterforum was built served as an officers' canteen.

  • Construction work began in 2007 and ended in 2008 with the grand opening.
  • The half-timbered structure was designed to allow the building to blend gently into the landscape. Inside, too, a lot of wood from local pine trees was used, and real oak parquet flooring was laid.
  • Lowerable, dimmable chandeliers made from imitation antlers lend the room warmth and a special charm despite its size. Spotlights installed on the sides put every event in the right light.
  • The 200 m² hall can accommodate 230 guests. Another 20 guests can enjoy a fantastic view from above from the wooden gallery. This is also where the control room for the lighting and sound technology is located.
  • The impressive stage with several curtains, a large screen, two artists' dressing rooms, a separate stage entrance, and the original Steinway grand piano is the highlight.
  • Both window fronts can be opened wide by floor-to-ceiling double doors to step out into the creative garden with its covered walkway and fountain. The room can be completely darkened.
  • The theater also has a foyer with a bar and a cloakroom.

ART & BEAUTIFUL THINGS

At Gut Klostermühle, you will always discover something new during your stay, including special art objects and furnishings. Over the years, the owner has collected little treasures and lovingly placed them throughout the property. Some were purchased at auctions, while others were commissioned specifically to make this place unique. We would like to introduce some of these objects to you here.

  • The first picture shows one of our highlights, the hands on the SPA lawn. The artist Jürgen Ebert named this object “Hold your health in your hands,” perfectly placed at Brune Balance med & SPA.
  • The bronze figure at the SPA entrance is by Fritz Klimsch.
  • The three horse statues, the cherubs and gargoyles, the Buddha figure and the fountain in the creative garden, as well as the countless equestrian and horse paintings, originate in part from auctions at Ahlen Castle and the House of Hanover.
  • A special highlight is the original Steinway grand piano from New York.
  • The illusion painting on the ceiling of the indoor pool and the wall design of the tepidarium are by the painter Harald K. Schulze, who comes from Letschin.

We hope you enjoy strolling through your favorite place with a new perspective during your next stay.

UNDERGROUND PASSAGE WITH SECRET DOORS

No, our tunnel is not a “remnant” of the Stasi, as many guests assume. It was deliberately planned and built by the architect. The owner wanted to create not a classic multi-story hotel building, but a kind of holiday village with many individual buildings on Lake Madlitz. It was important to him to create something special on the old foundations. Our tunnel allows guests and staff to walk from one building to another without getting their feet wet. It is always a special moment for our employees when they hand guests the site and tunnel map.

  • The tunnel connects five buildings: the Fischerhaus, the two residential buildings “Fontane” and “de Bruyn,” the “Finckenlounge,” and the Brune Balance med & SPA with the Theaterforum. The breakfast restaurant is a completely underground separate building. Only the terrace is visible from the outside.
  • Construction of the 160-meter-long tunnel began in 2007. It is accessible via three elevators and six exterior doors.
  • It was completed in various construction phases by 2008 and is made of reinforced concrete.
  • The district heating pipe runs under the stucco to the Fischerhaus.
  • The ceiling features extra rotating spotlights and a suspension system for pictures, so that the entire tunnel can be used as a professional gallery.
  • A large glass display case forms the centerpiece.
  • Eight wallpaper doors conceal storage and technical rooms as well as the staff entrance to the Finckenlounge kitchen.
  • The elevator and tunnel take you up three floors. The Fischerhaus is on the ground floor, while the first floor leads to the lower rooms of the residential buildings, our breakfast restaurant “Finckenlounge,” and the sauna area of the Brune Balance med & SPA. If you go up to the second floor, you reach the upper outdoor area of the complex.

FOREST SUPERINTENDENT, SOUND RESEARCHER, VIRTUOSO, VIOLIN MAKER

Around 1900, today's forester's lodge was the administrative building of the Alt Madlitz forest district. From 1900 to 1923, the head forester Curt Metzner, a former ensign in the navy, lived and worked there. After completing his state examinations and various internships in the Berlin area, he immediately took over as head forester of the forest district with its lodge in the Madlitz Forest. His Majesty Emperor Wilhelm II regularly traveled from Berlin to Alt Madlitz for hunting trips, preferably in the imperial saloon car, until his abdication in 1918/19. According to tradition, very confidential political and sometimes hobby-scientific conversations often took place between the emperor and Curt M., almost always after the traditional picnics in the forest. Metzner told the emperor about his experiments in sound physics and sound physiology with musical instruments, as well as outdoor range tests with his homemade violins. The violin maker's house contained a small wooden physics laboratory and an instrument workshop. The emperor opened a few doors for Curt Metzner, including at “his” Berlin Academy of Sciences. Metzner also became known through his publications in specialist journals. When the Stasi took over the site, what is now the violin maker's house served as a guardhouse. The large main gate was also located here. Two vacation apartments were created on the foundations of this traditional building, preserving some of the original structure. So today, you can literally breathe history in the upper or lower floors. Quelle: Chronik Briesen

THE MFS AT MADLITZER LAKE

Directly on the grounds of the Klostermühle estate, formerly used as an officers' settlement, there is an underground bunker that was intended to serve as accommodation and a transmission station for the various STASI commands in the GDR in the event of war. However, the bunker built here was only an outpost of the security and reporting system of the Ministry for State Security. The main bunker is located about 2 km away from the bunker here and also belongs to the property. It still contains remnants of the equipment, which suggests a high technical standard for the time. Construction began in 1977 on a site covering approximately 6 hectares. Underground rooms for approximately 200 people were set up there. Gravel was transported to the open construction pit around the clock by BMK Ost (Bau- und Montagekombinat), the largest construction company in the GDR. This was, of course, not particularly conducive to secrecy. The site was secured by a double wire mesh fence with a dog run and was permanently manned by around 50 personnel. As camouflage and to explain the heat radiation during aerial reconnaissance, fallow deer were kept in a so-called compulsory enclosure directly at the entrance. The bunker area covers around 250 m² with a floor covering of 4 m and a wall thickness of 0.5 m. It had its own water supply with a filter system. Wastewater was allowed to seep away. Containers filled with sawdust were used as toilets. The bunker was the result of general military doctrine. In 1987, the shell of the boiler house was demolished and the bunker facility was decommissioned.

“FLYING GEMS” AT MADLITZER LAKE

The kingfisher is known as the “flying gem” because of its colorful, blue-orange, and metallic plumage. It was named Bird of the Year in 2009. The Alcedo atthis, which is native to this region, is the only one of around 90 species to have made its way north. Almost all the others live in the tropics. It also spends the winter in its native habitat. Kingfishers are specialized fish hunters and usually catch sticklebacks or minnows by diving. In cold winters, when the waters are frozen, kingfishers in many places have no chance of finding food. Kingfishers can breed up to three times a year, and in exceptional cases even four times, successfully raising at least eight young per year. This means that winter losses can be compensated for after just a few years (assuming a few mild winters). They use burrows they dig themselves to breed, typically in steep banks, but also in the root plates of fallen trees or in gravel pits, for example. Depending on the previous winter, the total number of breeding pairs in Brandenburg is estimated at between 700 and 1,300. With a lot of patience and a keen eye, you can spot this little beauty on a hike around Lake Madlitz.
Photos: Steven Hahn Photography
Source: NABU Brandenburg

MILLWHEEL OF THE “KLOSTERMÜHLE”

  • The lakes north and south of Briesen are located in the Falkenhagener Rinne. It was formed after the Ice Age when the meltwater drained away.
  • In the 14th century, monks built a watermill, a fisherman's cottage, and a forester's lodge at the narrowest point.
  • After 1946, the mill ceased operation and the mill wheel was dismantled.
  • It was only when the mill was converted into a hotel that it was lovingly restored with a new mill wheel, as true to the original as possible, based on old plans and photos.
  • Today, the mill wheel generates 2 to 2.5 kW per day, which is fed into our grid. It is possible to produce up to 4 kW.
  • To prevent the water level in the lake from falling, the water level mark attached to the mill wheel must not be exceeded or fallen below.
  • Those who stay at the Klostermühle are awakened in the morning by the rushing mill wheel and gently lulled to sleep in the evening.

SEEHÜTTE THEN AND NOW

  • Before reunification, the lake hut also belonged to the Stasi.
  • Planning for the complete renovation and installation of additional windows began in 2008. It took two years to complete the work.
  • All work was carried out by our own technicians.
  • The hut's utilities are also interesting. For example, electricity, water, and telephone lines are laid from the mill through the lake.
  • Wastewater is collected in a 3,000-liter plastic tank and, depending on occupancy, disposed of by our technicians in the in-house wastewater treatment plant.
  • Due to its poor insulation, the lake hut is not suitable for rental during the winter months. It is heated with propane gas.

steg system

  • The jetty on the lawn in front of the fisherman's house has always been part of this building.
     
  • In the mid-1980s, it underwent complete renovation as part of a training exercise by NVA pioneers.
     
  • When the fisherman's house was renovated and converted into a hotel in 2003, the jetty was given a new look once again. Interestingly, architect Walter Brune insisted on reusing the old planks and beams. They were extensively sandblasted and water-blasted and were then used as ceiling and wall paneling in the former “Fischerhütte” bar.
     
  • In May 2020, we took advantage of the lockdown to upgrade the jetty with new planks.