Most opera houses ask you to buy a ticket before you get anywhere near them. The one on Oslo's harbour asks you to walk on it.
From the edge of the fjord, a broad white slope rises gently towards the sky. People climb it in trainers, with prams and with ice creams, and stop at the top to look out over the water and the cranes of the new city.
That slope is the roof of the Oslo Opera House, home of the Norwegian National Opera and Ballet. It is one of the few public buildings anywhere that you can climb without ever going inside.
A harbour that needed a new face
The opera house stands in Bjørvika, at the very head of the Oslofjord. For much of the twentieth century this was not a place anyone visited for pleasure. It was a working container port, with a busy main road running between the old town and the water.
Norway also had a long-running problem: the national opera company had no purpose-built home. In 1999, after years of debate, the Storting decided that a new opera house would be built here, as the first piece of a new waterfront district.
The idea was bold. Instead of tucking a cultural building into an existing neighbourhood, the city would place it on the empty harbour and let a new neighbourhood grow around it. You can read more about how that thinking reshaped the shoreline in our look at modern Scandinavian architecture on Oslo's waterfront.
Snøhetta and the winning idea
An open design competition drew around 350 entries. The winner was Snøhetta, an Oslo architecture practice named after one of the highest mountains in the Dovrefjell range.
Their scheme was less a building than a landscape. The architects described three ideas working together: a wave wall, where the stage world meets the public; a factory, holding the workshops and rehearsal rooms; and a carpet, the sloping white surface that would belong to everyone.
Construction began in 2003 and finished in 2007, ahead of schedule. The project came in around NOK 300 million under its budget of NOK 4.4 billion.
The gala opening took place on 12 April 2008. King Harald attended alongside Queen Margrethe II of Denmark and President Tarja Halonen of Finland, and about 1.3 million people came through the doors in the first year.
Walking the Oslo Opera House roof
The roof is the part that made the building famous. It angles down until it meets the plaza at ground level, so you can stroll from the waterfront straight up to the top without a single step.
The surface is covered in white granite and La Facciata, a white marble from Carrara in Italy. Look closely and you will see that it is not one smooth sheet. The pattern of the stones was worked out together with the artists Kristian Blystad, Jorunn Sannes and Kalle Grude, with small ridges, steps and changes of texture so that no two parts feel quite the same.
At the top you are standing level with the stage tower. To the south lies the fjord and its islands. Inland you look across the new towers of Bjørvika, and to the south-east, beyond the railway tracks, rises the green slope of Ekeberg.
Visiting the roof is free and open to everyone, not just ticket holders. On warm summer evenings people sit on the marble as if it were a beach.
In winter, take more care. The pale stone can be slippery with ice and snow, and parts of the roof may be closed off when conditions are bad.
The building that rises from the water
Seen from a boat or from the far side of the harbour, the opera house looks a little like an iceberg pushing out of the fjord. The white surfaces slide down to the water's edge, and the building almost seems to float.
Rising above the roof is the stage tower, the tallest part of the structure. Rather than stone, it is clad in white aluminium panels. The design, by Løvaas & Wagle, uses patterns inspired by old weaving, so the surface catches the light differently through the day.
Size is easy to underestimate here. The building holds around 1,100 rooms across some 49,000 square metres. It is often described as the largest cultural building in Norway since Nidaros Cathedral in Trondheim, completed around the year 1300.
Inside: oak, glass and a chandelier
Walk in from the plaza and the mood changes. The foyer is wrapped in glass windows up to 15 metres tall, with slim frames and thin angled columns, so the fjord stays in view almost everywhere you stand.
Facing you is the wave wall, a great curving surface of oak that encloses the main auditorium. After all the cool white stone outside, the warm wood feels deliberate, like stepping into a large wooden instrument.
The main auditorium is a classic horseshoe shape and seats 1,364 people. An oval chandelier made of about 5,800 hand-made crystals lights the room. Seat-back screens let audiences follow the libretto in Norwegian or English as well as the original language.
Two smaller stages, seating around 400 and 200, host chamber pieces, contemporary dance and experimental work. The main stage itself is 16 metres wide and 40 metres deep, which gives an idea of the scale of machinery hidden behind the curtain.
Art in and around the opera
Art was built into the project from the start, and some of it is easy to miss. In the foyer, perforated wall panels by the Danish-Icelandic artist Olafur Eliasson cover the roof supports. Lit from behind, the hexagonal openings are meant to suggest melting ice.
The main stage curtain is the work of the American artist Pae White. She scanned a crumpled piece of aluminium foil, and the image was woven into fabric that looks three-dimensional from the seats. The finished curtain is about 23 metres wide and weighs around 500 kilograms.
Out in the water, just off the building, sits She Lies by Monica Bonvicini. The sculpture of stainless steel and glass panels rests on a concrete platform in the fjord and turns with the tide and the wind, so it never looks exactly the same twice. Queen Sonja unveiled it on 11 May 2010.
The Oslo Opera House architect's legacy
The building quickly won the culture award at the World Architecture Festival in 2008 and the European Union Prize for Contemporary Architecture in 2009, often called the Mies van der Rohe Award.
Its bigger achievement was what came next. The opera was meant to lead the way for Bjørvika, and it did. The old main road was moved into a tunnel under the harbour, and the empty dockside slowly filled with offices, flats and promenades.
Two of Oslo's most important cultural buildings now stand within a few minutes' walk. Deichman Bjørvika, the main public library, opened in 2020, and the MUNCH museum followed in 2021. The opera has become the anchor of a whole cultural waterfront rather than a lone white shape on an industrial shore.
Oslo Opera House tour and tickets
If you want to see more than the foyer, a guided tour is the best way in. The opera offers tours in English on Saturdays and Sundays, lasting about 50 minutes, with a maximum of 25 people per group.
The tours cover the architecture, the art in the building, the stage technology and, of course, opera and ballet. At the time of writing the price is NOK 180 for adults and NOK 105 for children. Tickets for each weekend are released on the Tuesday of the same week, so plan a few days ahead.
For performances, Oslo Opera House tickets are sold through the opera's own website and box office. The programme runs from full-scale opera and classical ballet to concerts and contemporary dance, so it is worth checking what is on before you travel.
Getting there and making a day of it
The opera's address is Kirsten Flagstads plass 1, named after the Norwegian soprano who became one of the great Wagner singers of the twentieth century. It is only a short walk from Oslo Central Station, which makes it an easy first stop on arrival or a last one before a train.
Trams 13 and 19 stop at Bjørvika nearby before climbing the hill on Ekebergbanen. Our guide to riding the Oslo tram explains the lines and how tickets work.
A good half day might start on the roof in the morning light, continue to the library and the MUNCH museum along the promenade, and end in the ruins of the medieval town at Middelalderparken, a short walk east. The story of those streets is told in our piece on Oslo Old Town and the medieval city underfoot.
Whichever way you come, do what everyone else does first. Walk up the marble slope, find a spot near the top and watch the harbour for a while. It is the simplest way to understand why this building changed the way Oslo meets the sea.
About Sofia Berg
Sofia Berg is a lifelong Oslo resident and travel writer with a passion for uncovering the city's hidden gems. She has been exploring and writing about Oslo for over ten years.