This extension in Asker is perhaps Norway’s toughest

The eye-catching, fold-out enclosure is covered with a raw coffee and maintenance-free zinc plates.

This extension in Asker is perhaps Norway's toughest

This extension in Asker is perhaps Norway's toughest

This is the same cabin

This extension in Asker is perhaps Norway's toughest

Clean the bathroom? It’s just getting started

This extension in Asker is perhaps Norway's toughest

This house is voted England’s coolest

This extension in Asker is perhaps Norway's toughest

The coolest house in the woods

– To tie the modern extension with the older main house I gave the architect-designed newcomer in the sink the same roof angle as the white 70s villa already on the site, says architect Thor Arne Kleppan in Tupelo Architecture in Oslo.

His starting point was that he did not want to deny that this was a new building.

Then it was great that the builders gave him free hands to create something architecturally very special.

This extension in Asker is perhaps Norway's toughest

TOTAL FRISLEPP: The architectural sign added, the garden room opens maximum to the sun. The building measures almost four meters at the highest and well two meters at the lowest. The windows are set in slick, non-supporting steel frames that do not steal any of the views. They give solidity to the huge glass facade, but the powerful pillars are further into the room and the back wall of concrete that carries the construction. The glass also continues around the corner to the left towards the middle and the main house. Photo: Nils Petter Dale

Djerv and dramatic

This extension in Asker is perhaps Norway's toughest

ELEGANT GANGPARTI: The intersection has an extra window in the back towards the other main part of the garden. Here you can see how the materials sink, untreated ash and the white painted panel stand to each other. Photo: Nils Petter Dale

This extension in Asker is perhaps Norway's toughest

A HIGHER: – This is an extension of a typical seventies building, says architect Thor Arne Kleppan in Tupelo Architects. The plant consists of the older, inward-facing house, an intermediate building and the outward-facing extension with a folding, self-supporting construction. Photo: Nils Peter Dale

This extension in Asker is perhaps Norway's toughest

MATCHING MATERIALS: Both the light sill and the door stops are made of solid stainless steel – and of course in a style that matches the extension. Photo: Nils Petter Dale

The architect was early in the planning process, imagining that it could take time to get a built-up building such a traditional house.

But he was pleasantly surprised when the municipality showed an unexpected excitement for his daring drawings that resulted in a very special house.


There are several reasons why the Kleppan layer has been expanded in zinc. First of all, zinc is a very durable material and it allows for such special constructions as this.

In addition, there are zinc in many types of surface treatments, and it reflects the light in exciting ways.

– And the material is far from as cool as many believe, the architect argues.

Pavilion with a rugged folding shape

The folding, self-supporting roof structure gives the garden room a completely open main room.

All of this living arrangement is organized around an L-shaped concrete wall with visible, sanded surfaces on the inside of the building.

The concrete wall is therefore both a bearing and a separate decorative element in the building.

Full front to the sun

The front designed architect so that the entire main room opens up to the light and the sun as much as possible.

Important Engineering Worker

– The engineer in this project was particularly important, Kleppan explains.

– Because of all the glass, concrete walls and the almost four meter tall steel columns that are far into the room, which also contribute to the construction.

Totally opened to the sun

Otherwise, the architect’s main idea was to tie the plant together by building the exquisite, extravagant extension of discrete materials facing each other – and to the main house.

A project with many moments

Above the high windows, air has been added.

All outer cladding is made of zinc, with the exception of untreated ash on the back of the new gangway towards the main house.

The sink plates that cover the ventile double-roof structure reflect the color tone of the concrete inside the living room.

Ceiling and wall is a single surface

The floor is in Oppdals slate, and to make the wall and ceiling seem like a continuous surface, both of these were painted white.

Conventional – after all

– Otherwise, it was important that the extension was built in a relatively conventional way, so that we got someone to perform this unusual construction assignment, commented architect Thor Arne Kleppan.

Well in the living room

A number of technical details and features tell us that this is a thoughtful house.

Below a solid metal claw in the living room is a well in the floor. It combines most of the extras connectors, thermostats for the floor heating as well as outlets for television antennas.

This is a standard industrial product commonly used in public projects. Solid door stops and light bulbs outside complete the picture.

A material that lasts

This extension in Asker is perhaps Norway's toughest

FULL METAL JACKET: Rough and stylish at the same time. All exterior cladding located outside the ventile double construction is made of zinc platters. They have a hue that clings the rough concrete wall surfaces inside the living room. Photo: Nils Petter Dale

From the back you look extra well how the building is dressed up by maintenance-free zinc platters.

This extension in Asker is perhaps Norway's toughest

COLLECTOR TECHNOLOGY: In this well with lid, all of the connectors and wires are assembled. Photo: Nils Petter Dale

– Zinc is an element in line with many others, and the varnished not and is used mostly as it comes from nature, says Torleiv Ranheim, head of the Norwegian branch of VM Zinc.

– The material can be finer over the years and can be over a hundred years. Just think of all the matt-gray cuttings in the mansions along the avenues in the heart of Paris. They are over a hundred and twenty years and are still amazing, says Ranheim.

– Because zinc is recyclable, it is also environmentally friendly, says Torleiv Ranheim.

This extension in Asker is perhaps Norway's toughest

HELÅRS LYSTHUS: The task of the architect was to create a summery gazebo, but with floor heating and good UV values ​​on the glass facade the room can be used all year. Here you can see the load-bearing concrete wall in the back of the living room. The same white color on the wall and ceiling makes these two elements almost like a flat. Photo: Nils Petter Dale

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