Blaa Planet København, Copenhagen Aquarium Building, Award, Kastrup Architecture Photos

Blaa Planet Kastrup, Copenhagen

Danish Aquarium Building: Visitor Attraction in Denmark design by 3XN

post updated 4 September 2021 ; 3 Oct 2013

The Blue Planet wins World Architecture Festival Award

Location: Kastrup, Copenhagen

Architect: 3XN

Blaa Planet
photo from 3XN

Blaa Planet Copenhagen Aquarium

Denmark’s new National Aquarium, designed by 3XN, has won the Display Award at the prestigious World Architecture Festival (WAF)

Inspired by the shape of water in endless motion, Denmark’s new National Aquarium, The Blue Planet is shaped as a great whirlpool, and the building itself tells the story of what awaits inside.

The WAF judges were delighted by the entrance experience and the sculptural form. They said, “It deals successfully with the site and finds opportunity where there is little context. It overcomes significant engineering and technical challenges.”

Blaa Planet
photo from 3XN

The whirlpool concept originates in a narrative about water, and as an image, is at once both abstract and figurative. It stirs attention with its distinctive vortex blades, but at the same time, as a building, changes dramatically depending on viewing angle, distance and daylight conditions. From the air, almost entirely white, its contours are reminiscent of a starfish. From the front, the building’s organic lines are evocative of silvery-grey waves or a vast sea creature, and on closer inspection, the facade patterning is reminiscent of fish scales. This is a building that invites interpretation.

The World Architecture festival culminates with a prestigious awards ceremony on Friday evening, October 4th, where Principal of 3XN, Kim Herforth Nielsen will collect the WAF award for The Blue Planet. ”It is amazing to be among the WAF award winners, especially because we are competing against some of the very best architecture projects in the world”, says Kim Herforth Nielsen.

Blue Planet Building
photo from 3XN


The Blue Planet is located on an elevated headland towards the sea, north of Kastrup Harbor. The building’s distinctive shape is clearly visible for travelers arriving by plane to the nearby Copenhagen Airport. The facade is covered with more than 33,000 small diamond-shaped aluminum shingles, which adapts to the building’s organic form.

The whirlpool concept was chosen as ideal not only for its visual associations, but also because it resolved a a practical challenge in the design brief: it ensures that one or more of the whirlpool arms, with relative ease and without disrupting the building’s integrity nor the operation of the aquarium, can be extended with more than 30 % in order to create more exhibition space.

The Arrival and Interior

Visitors reach the entrance by following the first and longest of the whirlpool’s arms, already starting in the landscape. With a smooth transition the landscape surpasses for the building, while the outdoor ponds mark the unique experience that awaits the aquarium visitors as they enter: the whirlpool has pulled them into another world – a world beneath the surface of the sea.

A circular foyer is the center of motion around the aquarium, and it is here visitors choose which river, lake or ocean to explore. By enabling multiple routes the risk of queues in front of individual aquariums is reduced. The interiors range from grand to intimate settings, allowing the architecture and the exhibits to jointly convey an array of diverse environments and moods. The curved ceilings of the aquarium are reminiscent of the baleens of a large whale.

The exhibition is a total concept offering all visitors a sensuous and captivating experience of life in and under the water. A mixture of light, sound, advanced AV-technology, projections, film, interactivity, graphics, illustrations and signs aimed at all age levels ensures that every visitor, regardless of background or interests, has the best experience possible. As the only aquarium in Denmark, The Blue Planet focuses on all aquatic life – from cold and warm waters, fresh and salt. In total, The Blue Planet contains app. 7 million liters of water and 53 aquariums and displays.

Blaa Planet Building Copenhagen aerial photo
photo from 3XN

Construction and Location

The building extends beyond the original coastline, placing special requirements on the facility’s structures in a terrain with tendency to subsidence. The structure is founded on piles and all of the sewage structures are suspended in the concrete structure. The building’s architectural facade design forms the basis for the design of the steel structures. The load-bearing system consists of 54 unique steel frames, which via their radial positioning and geometry forms the base of the curved facades.

A service line was built 1.7 km out into the Øresund to obtain suitable water for the aquariums. Moreover, the cooling system for aquariums and climate system for public areas also use seawater.

The Blue Planet has an outstanding location on the shores of Øresund, only eight kilometres from the Copenhagen City Hall Square. Motorways, Copenhagen Airport, the Øresund Bridge, Metro and international trains are within few hundred meters.

About the World Architecture Festival Awards

The World Architecture Festival (WAF) is the world’s largest festival and live awards competition dedicated to celebrating, and sharing architectural excellence from across the globe. The first WAF took place in 2008 and is returning for its sixth successive year in Singapore from 2nd to 4th October 2013. Over 2000 attendees have gathered in Singapore from over 68 countries for three days of live crits, parties and seminars from some of the world’s best-known architects.

The Blue Planet Copenhagen – Building Information

Responsible for construction:
Client: Bygningsfonden Den Blå Planet
Architect: 3XN A/S
Consulting engineers: Moe & Brødsgaard A/S
Consultant, landscape: Henrik Jørgensen Landskab AS
Consultant, exhibition: Kvorning design & kommunikation
Large constructions: MT Højgaard, Hoffmann A/S, Kai Andersen A/S, E. Pihl & Søn A/S
Aquarium technique, total construction AAT Advanced Aquarium Technologies
Client consultant: PLH Arkitekter A/S
Lighting Design: Jesper Kongshaug

Blaa Planet Facts:
Building completion: December 2012
Total budget, 2013 prices: App. 730 million DKK – inclusive the value of the building site etc.
Gross area: App. 10,000 square meters, whereof app. 5,000 square meters exhibition. Outdoor area app. 2,000 square meters plus parking area for 200 vehicles, in total parking for 575 vehicles

Main sponsors:
Realdania: app. 300 million DKK
Knud Højgaards Fond: 100 million DK
Tårnby Municipality: The building site etc.
Dronning Margrethes og Prins Henriks Fond: 100,000 DKK

Blue Planet Copenhagen images from 3XN Architects

World Architecture Festival Awards


The Blue Planet, Copenhagen, Denmark – building opening news
The Blue Planet Copenhagen
photo from architect
The Blue Planet – 20 Mar 2013

The Blue Planet, Copenhagen, Denmark – building background
Blue Planet Copenhagen
renderings © 3XN
Blue Planet

Location: Blaa Planet, Kajakvej, 2770 Kastrup, Copenhagen, Denmark

Architecture in Copenhagen

Copenhagen Architecture Designs – chronological list

Danish Architecture

Copenhagen Architecture Tours

Copenhagen Building News – Selection

KPMG Headquarters Copenhagen by 3XN
KPMG Copenhagen Building
picture © Adam Mørk

NOMA Restaurant : GXN
NOMA Lab building
picture : Adam Mørk

Copenhagen Buildings

Copenhagen Architect Offices

Copenhagen Architecture Photos
Copenhagen Buildings
photo © Adrian Welch

Bella Hotel Building : 3XN
Bella Sky
picture : Adam Mørk

Comments / photos for Blaa PlanetDanmarks Akvarium design by 3XN Archiects page welcome