written by:
photos by:
July 15, 2009
Originally published in Urban Revival

In Vienna, a dazzling penthouse by Delugan Meissl has boldly inserted itself between traditional rooftops of the city’s Wieden district like a recently landed alien intruder. 

Sweeping diagonals cut across the façade of House Ray 1 to provide privacy and a modicum of safety for a dramatic outdoor terrace.
Sweeping diagonals cut across the façade of House Ray 1 to provide privacy and a modicum of safety for a dramatic outdoor terrace.
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The penthouse is boldly inserted within the traditional rooftops in Vienna's Wieden district.
The penthouse is boldly inserted within the traditional rooftops in Vienna's Wieden district.
Photo by 
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The engineering of House Ray 1’s load-bearing structure was extremely complex. Since the house had to be built on top of an old building, the architects opted for lightweight steel skeleton construction. The living/dining area has sliding glass walls that
The engineering of House Ray 1’s load-bearing structure was extremely complex. Since the house had to be built on top of an old building, the architects opted for lightweight steel skeleton construction. The living/dining area has sliding glass walls that open to the back terrace and pool.
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The biggest challenge for the architects in building House Ray 1 was to create a home for themselves. They transformed the ideas of their architectural philosophy into the architectural reality of each detail, designing each element of or within the house
The biggest challenge for the architects in building House Ray 1 was to create a home for themselves. They transformed the ideas of their architectural philosophy into the architectural reality of each detail, designing each element of or within the house on their own, ranging from door handles to the light switches to the furniture. Here we see the view from daughter Nora’s bedroom down the length of the penthouse interior.
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The cavity for the bathtub is part of the same continuous form-world as House Ray 1’s sloping roof­scape. The white tub is made from Corian; the faucet is by Dornbracht.
The cavity for the bathtub is part of the same continuous form-world as House Ray 1’s sloping roof­scape. The white tub is made from Corian; the faucet is by Dornbracht.
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The “culinary cockpit” (a.k.a. the kitchen) stands at the center of the apartment on a raised platform. A long, white slanted counter contains hi-fi speakers and a BUS-system panel of 18 buttons for controlling lights, curtains, heating, ventilation, etc.
The “culinary cockpit” (a.k.a. the kitchen) stands at the center of the apartment on a raised platform. A long, white slanted counter contains hi-fi speakers and a BUS-system panel of 18 buttons for controlling lights, curtains, heating, ventilation, etc.
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Nora, the architects' six-year-old daughter, hangs out next to her built-in bed.
Nora, the architects' six-year-old daughter, hangs out next to her built-in bed.
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The stair and entry module bulges out over the back of the seven-story building.
The stair and entry module bulges out over the back of the seven-story building.
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The kitchen window looks out to stairs that lead up to a small roof terrace. The kitchen faucet is by Dornbracht. The recessed lighting is by Guzzini.
The kitchen window looks out to stairs that lead up to a small roof terrace. The kitchen faucet is by Dornbracht. The recessed lighting is by Guzzini.
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Architect and homeowner Meissl considers the eight-story drop to the street.
Architect and homeowner Meissl considers the eight-story drop to the street.
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A narrow terrace—one of three—hangs precariously over the street.
A narrow terrace—one of three—hangs precariously over the street.
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The walls of the toilet room are decorated with an abstract composition of overlapping black lines printed on a screen that is lit from behind.
The walls of the toilet room are decorated with an abstract composition of overlapping black lines printed on a screen that is lit from behind.
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Roman and Nora stand on the terrace, and look out over the reflecting pool and beyond.
Roman and Nora stand on the terrace, and look out over the reflecting pool and beyond.
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The long floating counter is a sculptural element that continues the line of duct-like exterior elements. The sloping floors are made from a rich-looking African cherry wood called Doussie. The metal disks beside the ramp are smoke and heat vents. The arc
The long floating counter is a sculptural element that continues the line of duct-like exterior elements. The sloping floors are made from a rich-looking African cherry wood called Doussie. The metal disks beside the ramp are smoke and heat vents. The architects aimed to create an interior without any barriers or columns in order to have an uninterrupted spatial continuum. They appear to have succeeded in their efforts.
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Converging lines of sheer glass, sloping floors, and ceiling planes create the impression of multiple perspectives and vanishing points. There are no interior walls except for those around the bedrooms (as seen here, in the master).
Converging lines of sheer glass, sloping floors, and ceiling planes create the impression of multiple perspectives and vanishing points. There are no interior walls except for those around the bedrooms (as seen here, in the master).
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Meissl and Delugan’s favorite part of the house is definitely the “relaxation zone,” which features a black leather platform of their own design that appears to float between layers of tempered glass. The pillows are by Herman Miller.
Meissl and Delugan’s favorite part of the house is definitely the “relaxation zone,” which features a black leather platform of their own design that appears to float between layers of tempered glass. The pillows are by Herman Miller.
Photo by 
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Sweeping diagonals cut across the façade of House Ray 1 to provide privacy and a modicum of safety for a dramatic outdoor terrace.
Sweeping diagonals cut across the façade of House Ray 1 to provide privacy and a modicum of safety for a dramatic outdoor terrace.
Project 
House Ray 1

House Ray 1 (as in ray gun) projects from the roof of a Viennese apartment building like an exploding stealth bomber. It was designed by Elke Meissl and her partner/ husband, Roman Delugan, as a penthouse addition for their family, but it feels more like a prosthetic device that has attached itself temporarily and will move to a new destination as soon as it gets what it wants.

This Alien sense of glomming is particularly evident in a cantilevered section that sticks out the back of the penthouse and looms above the building’s courtyard. It connects to the home’s main stairwell and contains the entry foyer. From there the apartment unfolds not in a conventional hierarchy of rooms but rather in a sequence of vectors that rush in and out toward the surrounding roofscapes of Vienna’s Wieden district, combining a sense of perpetual motion and vertigo.

Architects Meissl and Delugan like to talk about the “speed” of a space rather than its shape or function, but there’s a hint of something else going on here. While the design has characteristics of blob/digital deconstruction (think Zaha Hadid on ecstasy), there is a lightness that makes it all work: “There’s a touch of James Bond,” says Delugan, a dark and slender Italian who loves Hollywood action movies.

The biggest challenge for the architects in building House Ray 1 was to create a home for themselves. They transformed the ideas of their architectural philosophy into the architectural reality of each detail, designing each element of or within the house
The biggest challenge for the architects in building House Ray 1 was to create a home for themselves. They transformed the ideas of their architectural philosophy into the architectural reality of each detail, designing each element of or within the house on their own, ranging from door handles to the light switches to the furniture. Here we see the view from daughter Nora’s bedroom down the length of the penthouse interior.

Converging lines of sheer glass, sloping floors, and ceiling planes create the impression of multiple perspectives and vanishing points. Floor-to-ceiling glass walls enhance the illusion of total transparency. There are no interior walls except for those around the bedrooms. Most of the furniture is built-in and plays its part in the spatial continuum. Ramps lead up to the living zone, while the kitchen sits on a central plateau, which the architects refer to as their “culinary cockpit.” A long white bar stretches down the center of the apartment and serves as both kitchen counter and visual continuity for the exterior. In the “relaxation zone,” a broad, pillow-laden platform—a kind of updated conversation pit—appears to be suspended between planes of glass.

The living area wraps around a back terrace with a precariously positioned pool—a mini version of the pool and terrace that John Lautner used at the Arango House (1973) in Acapulco, Mexico. On an earlier visit to House Ray 1, about a year ago, I watched as Meissl clambered onto that precipitous railingless ledge and wondered how it would work for a family with a young child. Now the answer seems, if not obvious, a little more reassuring. Water rises flush to the level of the larch floors and creates a strong visual as well as physical barrier. Nora, the architects’ six-year-old daughter, is allowed to take cautious toe dips in the pool, but it’s primarily there as a buffer to the seven-story drop, as well as adding another reflective surface and extending the sense of horizon.

The penthouse was always intended as a daring move, one calculated to challenge the existing codes and counteract Vienna’s museumlike character. Within the city’s arcane building code, there are provisions for rooftop/attic expansions, but they are exacting: a mansard-style silhouette with a 45-degree slope.

Taking extreme liberties, the architects still managed to stay within the strict letter of the building code but pushed it to the nth degree by shifting planes of glass and metallic sheeting. Their penthouse follows the existing ridgeline of neighboring roofs, and the terraces were set back to evoke the impression of a standard gable roof.

The “culinary cockpit” (a.k.a. the kitchen) stands at the center of the apartment on a raised platform. A long, white slanted counter contains hi-fi speakers and a BUS-system panel of 18 buttons for controlling lights, curtains, heating, ventilation, etc.
The “culinary cockpit” (a.k.a. the kitchen) stands at the center of the apartment on a raised platform. A long, white slanted counter contains hi-fi speakers and a BUS-system panel of 18 buttons for controlling lights, curtains, heating, ventilation, etc.

The building faces Platz am Mittersteig, a small triangular plaza created by the odd intersection of several streets. The architects’ own office is located above the plaza directly across from their penthouse. Along this street elevation, House Ray 1 presents a dizzying array of extruded and folded lateral barriers, with metallic surfaces that appear to be scooping air and light for internal consumption. One is reminded of air-intake systems and jetways. (It’s no coincidence that while working out the intricate interfaces of their own penthouse, the architects were designing an extension to the Vienna International Airport and a proposal for the Italian Space Agency.) The flow and force of House Ray 1’s forms also derive from the urban traffic patterns on the converging streets below. One section of the roof juts out much farther than the rest and extends beyond the envelope required by city zoning laws. To achieve this elevation, the architects exploited a certain gaube (dormer) law so that their addition could stick out beyond the prescribed envelope.

The building to the left of the penthouse is quaintly roofed in terra-cotta, while on the other side is a ’70s-style building with small balconies. House Ray 1 stretches between these two roof treatments like a recoiling apparatus. It whimsically plays off the Cold War modernism of the existing apartment building while reviving and refreshing the outmoded architecture of its neighbors. (Good design can do that: stand inde­pendently while transforming the surrounding context.)

The outer skin of the roof is made from Alucobond, a thin manufactured panel of coated aluminum. From inside the home, these panels act as blinders, allowing a degree of privacy within the all-glass apartment, while at the same time blocking or directing attention toward the enviable panoramic views. You can stand in the middle of the penthouse and see all the way to the snow-capped mountains, St. Stephen’s Cathedral at the heart of the old city, and even the brash new high-rises of Donau City.

A narrow terrace—one of three—hangs precariously over the street.
A narrow terrace—one of three—hangs precariously over the street.

Though a relatively young firm, Delugan and Meissl have already made a substantial mark on the Viennese skyline. Their 35-story Mischek Tower in the new Donau City area was not only one of the first high-rise apartment buildings in all of Austria, but also remains its tallest. The Beam, an apartment complex that overlooks the Danube River, is raised above the ground on narrow pilotis. More recently, they finished work on the seven-story Stadthaus on the Wimbergergasse that has seductively folded roofs covered with real grass. And now here, in the birthplace of psychoanalysis, we find this new hybrid for domestic adventure, what its designers have cryptically referred to as a “placeless point of entry.”

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