Project list

Natural Swimming Pool Beelitz

New development and construction of a natural outdoor pool in Beelitz on the site of the old overhead water tank.

Ort: Beelitz
Ausführungszeit: 2021-
Bauherr: Stadtverwaltung Beelitz
Leistungsphasen: 1 - 9
Baukosten: 3.3 M Euro
Planungshonorar: 400,000 Euro

Waterpark Wennigsen

In 2021, the renovation of the water park in Wennigsen was successfully implemented so that the pool could be opened in August 2021.

Ort: Wennigsen am Deister
Ausführungszeit: 2021
Bauherr: Wasserpark Wennigsen e.V.
Leistungsphasen: 1 - 8
Baukosten: 900,000 Euro
Planungshonorar: 180,000 Euro

Natural Swimming Pool Loon-Plage

In the Loon-Plage biological bathing site, opened in 2013, there were breaches in the water quality limits, especially for the parameter Pseudomonas aeruginosa.To rectify this situation, in 2018 the municipality commissioned the consulting company SINBIO to carry out an accurate diagnosis of the situation. In 2019, SINBIO SCIO, in collaboration with Polyplan-Kreikenbaum, carried out the […]

Ort: Loon-Plage
Ausführungszeit: 2019 to 2021

Straussvej Courtyard

In the pilot project Courtyard "Straussvej" in the middle of Copenhagen, rainwater from the roof surfaces is collected, purified and stored.

Ort: Copenhagen, Denmark
Ausführungszeit: 2019 to 2020
Leistungsphasen: 1 - 4
Baukosten: 450,000 Euro
Planungshonorar: 32,000 Euro

Natural Swimming Pool Ennigerloh

The Ennigerloh outdoor pool was converted into a pool with biological water purification; the existing pool and building fabric were largely retained.

Ort: Ennigerloh
Ausführungszeit: 2019 to 2020
Bauherr: Business and pool operation of the city of Ennigerloh
Leistungsphasen: 1 - 9
Baukosten: approx. 2 M Euro
Planungshonorar: 380,000 Euro

Dong Feng Lake

Polyplan-Kreikenbaum Gruppe GmbH was responsible for developing measures to improve the quality of Dong Feng Lake.

Ort: Dongfeng Lake, Yo Nan, China
Ausführungszeit: 2018 to 2023
Bauherr: WADI Engineering and Design Co., Ltd.
Leistungsphasen: 1 - 3
Baukosten: approx. 30 M Euro

Stiftspark Outdoor Pool Bassum

Bassum's natural swimming pool is getting on in years after its first renovation in 2006, we were authorized to plan a refurbishment and we successfully implemented it in 2021.

Ort: Bassum
Ausführungszeit: 2018 to 2021
Bauherr: Stadt Bassum
Leistungsphasen: 1 - 8
Baukosten: 480,000 Euro
Planungshonorar: 105,000 Euro

State Horticulture Show Ingolstadt

The Polyplan-Kreikenbaum group and Wasserwerkstatt had the task to design a water treatment system , its hydraulic interaction and the pump control.

Ort: Ingolstadt
Ausführungszeit: 2018 to 2019
Bauherr: Stadt Ingolstadt
Leistungsphasen: 1 - 9
Baukosten: 940,000 Euro
Planungshonorar: 214,000 Euro

TIBEAN Aabach-Talsperre

The deep water aerator (TIBEAN) ensures a constant oxygen supply to the dam, which provides drinking water for >250,000 inhabitants.

Ort: Bad Wünnenberg
Ausführungszeit: 2018 to 2019
Bauherr: Wasserverband Aabach-Talsperre
Leistungsphasen: 1 - 9
Baukosten: 450,000 Euro

Auenweiher in Fulda

A sustainable attractiveness of the lakes was planned with regard to their bathing use and open space design.

Ort: Fulda
Ausführungszeit: 2017 to 2022
Bauherr: Magistrat der Stadt Fulda
Leistungsphasen: 1 - 4
Baukosten: 1.5 M Euro

Bicycle Repair Cafe “neusi’s

Polyplan-Kreikenbaum designed and planned the technical building equipment in the bicycle repaiir cafe "neusi's" in Bremen's Neustadt.

Ort: Bremen
Ausführungszeit: 2017 to 2019
Bauherr: Hochschule Bremen
Leistungsphasen: 1 - 5
Planungshonorar: 12,000 Euro

Damm Aquaculture GmbH & Co.KG

The project "Damm Aquakultur GmbH & Co KG" is a Biofloc plant for shrimp production and has been in operation since 2018.

Ort: Niedenstein
Ausführungszeit: 2017 to 2018
Bauherr: Sven Damm
Leistungsphasen: 1 - 9
Baukosten: 1.5 M Euro

Natural Swimming Pool, Hainholz

Polyplan-Kreikenbaum was responsible for the refurbishment of the water technology in the natural swimming pool Hainholz/Hanover in this project.

Ort: Hannover
Ausführungszeit: 2017 to 2018
Bauherr: City of Hannover Department of Sports and Pools
Leistungsphasen: 1 - 9
Baukosten: 600,000 Euro
Planungshonorar: approx. 100,000 Euro

Urban stormwater management modelling

Polyplan has developed a biological water treatment system in Koge, Denmark, to keep total phosphorus concentrations below 100 μg/l.

Ort: Køge, Denmark
Ausführungszeit: 2017 to 2018
Bauherr: KLAR Forsyning A/S
Leistungsphasen: 2 - 8
Baukosten: 623,000 Euro
Planungshonorar: approx. 104,000 Euro

Harbour bath Aarhus

Planning and realisation of a water treatment system for the harbour bath in Aarhus (Denmark).

Ort: Aarhus, Denmark
Ausführungszeit: 2017 to 2018
Bauherr: AarhusKommune, Team Byggemodning
Leistungsphasen: 1 - 9
Baukosten: 1.4 M Euro
Planungshonorar: 85,000 Euro


New construction of a natural outdoor pool and a sauna bath in combination with an attached indoor pool with fitness center.

Ort: Neustadt am Rübenberge
Ausführungszeit: 2017 to 2018
Bauherr: Wirtschaftsbetriebe Neustadt am Rübenberge GmbH
Leistungsphasen: 2 - 9
Baukosten: 711,000 Euro
Planungshonorar: 104,000 Euro

Natural Swimming Pool Weende

The water purification in Weende is operated in a biological manner with the help of sprinkled and swamped ground filters, which are integrated into the open space design of the park.

Ort: Göttingen
Ausführungszeit: 2016 to 2018
Bauherr: Göttinger Sport und Freizeit GmbH & Co. KG
Leistungsphasen: 1 - 3
Baukosten: approx. 2.3 M Euro

Bois de Vincennes Paris

In the traditional park Bois de Vincennes North Paris, Polyplan-Kreikenbaum was responsible for the design planning of a seasonal bath in the listed park lake.

Ort: Paris, France
Ausführungszeit: 2016 to 2018
Bauherr: Mairie de Paris
Leistungsphasen: 1 - 2
Baukosten: 2.8 M Euro
Planungshonorar: 27,000 Euro

Singapore Sports and Community Hub

A natural water treatment system with two different types of treatment schemes and a phosphate adsorber.

Ort: Singapore
Ausführungszeit: 2016
Bauherr: Sport Singapore
Leistungsphasen: 1 - 3
Baukosten: 2 M Euro

Outdoor Pool Hänigsen

In 2016, the outdoor pool in Hänigsen was awarded the "Public Value Award for the Public Pool 2016" by the "German Association for the Bathing Industry".

Ort: Hänigsen
Ausführungszeit: 2015 bis 2016
Bauherr: Freibadgenossenschaft Hänigsen
Leistungsphasen: 1 - 9
Baukosten: 393,800 Euro
Planungshonorar: 78,500 Euro

“Los Condes” Santiago de Chile

As part of the permitting design for the new Cuervo Reservoir (13,149 ha) in Patagonia, Polyplan performed water quality forecasting calculations.

Ort: Santiago de Chile, Chile
Ausführungszeit: 2015
Bauherr: Austral Energy
Baukosten: 80,000 Euro

Outdoor Pool Tostedt

The new outdoor pool was designed as a combi-pool consisting of a natural pool (biological water purification) with a swimmer's pool (chemical water purification).

Ort: Tostedt
Ausführungszeit: 2015
Bauherr: Samtgemeinde Tostedt
Leistungsphasen: 1 - 9
Baukosten: approx. 2.9 M Euro
Planungshonorar: 491,500 Euro

Swimming Pool Gothenburg

In Gothenburg, we planned a floating bath with biological water treatment together with Raumlabor Berlin.

Ort: Gothenburg, Sweden
Ausführungszeit: 2015
Bauherr: Frihamnen AB
Leistungsphasen: 1 - 9

Natural Swimming Pool Herrenberg

The bath is a combination of chlorinated pool according to the DIN 19643 standard and a bath with biological water treatment.

Ort: Herrenberg
Ausführungszeit: 2014 to 2015
Bauherr: Stadt Herrenberg
Leistungsphasen: 1 - 9
Baukosten: approx. 5.6 M Euro
Planungshonorar: 712,810 Euro

TIBEAN Wahnbach Dam

The deep water aerator in the Wahnbachtalsperre has the task of oxygen transportation and distribution as effectively as possible.

Ort: Siegburg
Ausführungszeit: 2014
Bauherr: Wahnbach Dam Association
Leistungsphasen: 1 - 5
Baukosten: 400,000 Euro

Natural Swimming Pool Borden

Polyplan was responsible for the pool function, the water treatment scheme, the pump and piping design, and the microcontroller system.

Ort: Edmonton, Canada
Ausführungszeit: 2013 to 2018
Bauherr: City of Emdonton
Leistungsphasen: 1 - 8
Baukosten: 6 M CAD
Planungshonorar: approx. 250,000 Euro

Natural Swimming Pool Ruds Vedby

Construction of the first natural pool with biological water treatment in Ruds Vedby, Denmark.

Ort: Ruds Vedby, Denmark
Ausführungszeit: 2013 to 2015
Bauherr: Jesper Fussing Hjortgaard
Leistungsphasen: 1 - 8
Baukosten: 1.5 M Euro
Planungshonorar: approx. 120,000 Euro

Waterark Świętochłowice

In Swietochlowice near Katowice, in cooperation with local architects, we planned and implemented the water treatment technology for the first public natural swimming pool in Poland.

Ort: Świętochłowice, Poland
Ausführungszeit: 2013 to 2014
Bauherr: OSiR Świętochłowice-Skalka
Leistungsphasen: 1 - 8
Baukosten: 500,000 Euro
Planungshonorar: 100,000 Euro

Natural swimming pool Riehen

The natural swimming pool Riehen in the municipality of Murg on Germany's border with Switzerland, according to self-promotion is one of the biggest attractions in the region.

Ort: Riehen
Ausführungszeit: 2013 bis 2014
Bauherr: Municipality of Riehen
Leistungsphasen: 1 - 9
Baukosten: 9.6 M Swiss Franc

Gracht Hannover

In 2013/14, the expansion of the Lister Gracht in Hanover with biological water treatment and targeted planting was planned and implemented.

Ort: Hannover
Ausführungszeit: 2012 to 2014
Bauherr: Apothekerversorgung Niedersachsen, Hannover
Leistungsphasen: 1 - 8
Baukosten: 450,000 Euro
Planungshonorar: 68,000 Euro

Water treatment, Old Danube

Polyplan was responsible here for the conceptualization of the facillity's technology and the open space planning.

Ort: Vienna- Danube City, Austria
Ausführungszeit: 2012 bis 2016
Bauherr: DWS Hydro-Ökologie GmbH, Vienna
Leistungsphasen: 1 - 6
Baukosten: 1.4 M Euro

Lake Bellandur

Development of a restoration concept for Lake Bellandur in 2012 by Polyplan-Kreikenbaum Group GmbH.

Ort: Banglore, India
Ausführungszeit: 2012 bis 2014
Bauherr: Bio Fermenta
Leistungsphasen: Conceptual Study
Baukosten: 2.5 M Euro

Parkbad Kriens

The refurbishment of the bath was planned as ARGE Planungsteam Wegmüller-Schacher / Wasserwerkstatt Bamberg and Polyplan-Kreikenbaum.

Ort: Kriens, Switzerland
Ausführungszeit: 2011 to 2012
Bauherr: Community Kriens/Lucerne
Leistungsphasen: 1 - 9
Baukosten: 13.8 M Swiss Franc

Cemetry Riensberg

Implementation of a water monitoring program in the form of regular measurements, maintenance and the initiation of improvement measures.

Ort: Bremen
Ausführungszeit: 2011
Bauherr: Umweltbetrieb Bremen, Stadtgemeinde Bremen
Baukosten: 70,000 Euro

Südsee-Camp Wietzendorf

Restoration of the swimming lake eliminated the annual blue-green algae blooms, making it possible to use the lake permanently.

Ort: Wietzendorf
Ausführungszeit: 2011
Bauherr: Südsee-Camp Wietzendorf
Baukosten: 260,000 Euro

Natural swimming pool Tessiner Südsee

The natural bath Tessin was built as a bath with biological water treatment, according to the FLL 2011 Bath technology, PLC control and monitoring were carried out by Polyplan.

Ort: Tessin
Ausführungszeit: 2010 to 2012
Bauherr: City of Tessin
Leistungsphasen: 1 - 9
Baukosten: 1.3 M Euro
Planungshonorar: 150,000 Euro

Tianjin Airport Urbanes Gewässer

Design of a central urban water facility in Tianjin Logistics Park, China.

Ort: Tianjin, China
Ausführungszeit: 2010 to 2011
Bauherr: Studio Dreiseitl, Überlingen
Leistungsphasen: 1 - 8
Baukosten: 1.5 M Euro

Natural outdoor pool Kirchheim

A natural swimming lake was built on the grounds of the Eisenberg vacation village in 2010/2011.

Ort: Feriendorf Eisenberg/Kirchheim
Ausführungszeit: 2010 bis 2011
Bauherr: State capital Hanover
Leistungsphasen: 1 - 9
Baukosten: 350,000 Euro


A natural outdoor pool directly attached to the indoor pool, surrounded by water plants and an adjacent pier.

Ort: Laatzen
Ausführungszeit: 2010 bis 2011
Bauherr: aquaLaatzium Freizeit GmbH
Leistungsphasen: 1 - 9
Baukosten: approx. 416,000 Euro
Planungshonorar: 81,000 Euro

Natural swimming lake, Lake Steinbrunn

The natural swimming lake Steinbrunner See is a small open pit lake 3 km away from the center of Steinbrunn (Austria, Burgenland).

Ort: Lake Steinbrunn, Austria
Ausführungszeit: 2010
Bauherr: Steinbrunn municipality
Leistungsphasen: 1 - 9
Baukosten: 80,000 Euro

Tianjin Culture Park

The lake in Tianjin Culture Park is used to absorb and release incoming rainwater from the surrounding areas. This water is purified by natural processes.

Ort: Tianjin, China
Ausführungszeit: 2009 to 2011
Bauherr: Ramboll Studio Dreiseitl
Leistungsphasen: 1 - 8
Baukosten: 15 M Euro

Naturbad Zeven

A conventional outdoor pool has been transformed into an attractive natural pool with biological water purification and a variety of bathing attractions.

Ort: Zeven
Ausführungszeit: 2009 to 2010
Bauherr: City of zeven
Leistungsphasen: 1 - 9
Baukosten: 1.7 M Euro

Natural Pool Hallenberg

Outdoor pool with biological water treatment and integration of the Nuhne River, which flows by, as a source of filling water.

Ort: Hallenberg
Ausführungszeit: 2009
Bauherr: Stadt Hallenberg
Leistungsphasen: 1 - 9
Baukosten: 790,000 Euro
Planungshonorar: 130,000 Euro

Natural Swimming Pool Bingen

Refurbishment of the Bingen-Bingerbrück natural adventure pool with biological water treatment by Polyplan-Kreikenbaum Gruppe GmbH.

Ort: Bingen am Rhein
Ausführungszeit: 2008 to 2009
Bauherr: Municipal utilities Bingen
Leistungsphasen: 1 - 9
Baukosten: approx. 1.8 M Euro
Planungshonorar: 230,000 Euro

Natural swimming pool “MuRheNa”

The natural swimming pool "MuRheNa" in Murg is beautifully located directly on the Rhine and was designed together with Wasserwerkstatt Bamberg.

Ort: Murg
Ausführungszeit: 2008 to 2009
Bauherr: Municipal administration Murg
Leistungsphasen: 1 - 9
Baukosten: 2.4 M Euro

Natural Swimming Pool Froschloch

Since 2008, the Froschloch outdoor pool has been converted into a natural outdoor pool and completely rebuilt, including the buildings.

Ort: Dortmund
Ausführungszeit: 2007 to 2008
Bauherr: Sportwelt Dortmund GmbH
Leistungsphasen: 1 - 8
Baukosten: approx. 1.7 MEuro
Planungshonorar: 280,000 Euro

Stadionbad Bremen

The bath was planned as a combined bath. This means that the non-swimmer area is treated biologically and the swimmer area with chlorine.

Ort: Bremen
Ausführungszeit: 2005 to 2006
Bauherr: Bremer Bäder GmbH
Leistungsphasen: 1 - 9
Baukosten: 2.5 M Euro
Planungshonorar: 220,000 Euro

Natural Bathing Lake Schladen

Due to the algae blooms appearing in summer, a new filter concept based on biological methods had to be developed for the Schladen bathing lake.

Ort: Schladen
Ausführungszeit: 2001
Bauherr: Samtgemeinde Schladen
Baukosten: 110,000 Euro

Cemetry Osterholz

Implementation of various rehabilitation and restoration measures from 1998 to 2018 at the Osterholz Cemetery in Bremen.

Ort: Bremen
Ausführungszeit: 1999 to 2012
Bauherr: Umweltbetrieb Bremen; Municipality of Bremen


In the Achtern Diek bathing lake (12 ha), there were severe algae blooms, especially in the late summer, which impaired bathing use.

Ort: Otterndorf
Ausführungszeit: 1998
Bauherr: Stadt Ottendorf
Leistungsphasen: 1 - 5
Baukosten: 220,000 Euro

Flood Protection Object Protection Plus: Weserstadion Bremen

In collaboration with hydraulic engineers, planning was carried out for flood protection of the Bremen Weser Stadium up to +6.50 m NN.

Ort: Bremen
Bauherr: Senator Wirtschaft und Häfen / BWS
Leistungsphasen: 1 - 9
Baukosten: 6.7 M Euro
Planungshonorar: 600,000 Euro

Natural Swimming Pool Mont-près-Chambord

A new neptune filter and drum filter for natural water treatment was retrofitted at the Mont-Près-Chambord natural swimming pool in France.

Ort: Mont-Près-Chambord

Lüttnsee Tornesch

Lake Lüttensee represents the heart of the new urban district development. In addition to local recreation, a far-sighted, holistic drainage concept was to be created.

Ort: Tornesch
Bauherr: Stadt Tornesch

Sailing harbor Osterdeich

Near-natural redesign of the shore area and staging of the existing vegetation in the course of a necessary shore protection at the Segelhafen.

Ort: Bremen
Baukosten: 763,000 Euro

Weser-promenade “Tiefer”

Upgrading of paths and a staircase, installation of exterior lighting and development of the theater ship at the Tiefer, Bremen.

Ort: Bremen
Bauherr: Bremen Ports
Leistungsphasen: 1 - 9
Baukosten: 3.5 M Euro
Planungshonorar: 65,000 Euro