OKZT HUB 2019 - 2021

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description renovation of commercial base of a prominent 60’s development in Klagenfurt to offices and apartements
category offices
location Klagenfurt, Austria
built area 3.600 m²
design team

Stephan Buerger, Demetra Katsota, Savvas Kakalis, Myrto Tsarouchi


Taras Diachun


Oberessl & Kantz ZT GmbH (structural engineers), TB Kranbether (mechanical engineers), IB Hartl & Co KG (electrical engineers), AEE Energiedienstleistungen GmbH (building physics), IBA - Ingenieurbüro Anderwald (fire & safety)

client OK Immo GmbH
design year 2019
completion year 2021

The scheme reactivates the many years vacant commercial ‘base’ of a former sports outlet in a prominent, 70’s 13-storey development in the centre of Klagenfurt, Austria.

On the Feldmarschall Conrad Square front, a ground floor ‘hub’ space interconnected through an open, communicative staircase with two levels of offices for an engineering firm are accommodated. The interiors of the offices are designed to create a conversation between the exposed 70’s structural elements and new, crisp interventions.

A generous, central east-west passage connects the ground floor with the opposite west side (Geyerschütt), where the building is adopted into eight apartment units on the first and second level, a shop, parking and storage facilities. All apartment units feature a cantilevering balcony, animating the building’s rear side. Alongside the western party wall, a row of trees is proposed in order to minimise the current expansive hardscaped parking surface, providing natural shade and connecting to the opposite green space of the historic city wall. Beyond the ‘base’, renovation works are limited to a light renovation of the existing apartments’ entrance / stairwell and the provision of a disabled access.

The new façade constitutes an energy efficient envelope, horizontally striated with continuous meandering aluminium panels and generous glass panes. While on the Square front the articulation of the facade remains austere and follows the current envelope, on the rear, the banding adopts a more playful, cascading articulation.

Title Year Type Locaction Country
OKZT HUB 2019 offices Klagenfurt Austria
MAYRHOFEN STATION 2018 public Mayrhofen Austria
HOUSES A·2 2014 residential, hospitality Paros Greece
FERANT GARDEN APARTMENT 2017 residential Ljubljana Slovenia
CING LABORATORY BUILDING 2018 public Nicosia Cyprus
STUDENT STUDIOS PATRAS 2007 residential Patras Greece
PX SIX THRESHOLDS 2012 public Athens Greece
HOUSE B 2014 residential Crete Greece
HOUSE L 2016 residential, research Antiparos Greece
LANDHOTEL SILVESTAR 2016 commercial, residential, hospitality Motovun Croatia
AS IF 2014 residential, research Mykonos Greece
HOUSE E 2016 residential Artemida Greece
UNIVERSITY LIBRARY GRAZ 2015 public Graz Austria
HOUSE T 2016 residential Antiparos Greece
HOUSE H 2012 residential Corfu Greece
KURA CULTURAL CENTRE 2013 public Mingachevir Azerbaijan
THREE SPACES 2013 exhibition Athens Greece
KUBAN RIVERSIDE HOTEL 2013 commercial, hospitality Krasnodar Russia
STUDENT STUDIOS THESSALONIKI 2017 residential Thessaloniki Greece
HOUSE A+B 2008 residential Paros Greece
COOP BANK HEADQUARTERS 2012 commercial Nicosia Cyprus
PX THREE CORNERS 2012 public Athens Greece
AUSTRIAN AMBASSADOR RESIDENCE 2013 residential Athens Greece
COASTAL DOMAINS 2017 exhibition Athens Greece
ANNENHEIM CUBES 2012 residential, hospitality Treffen Austria
FERLACH TECHNICAL SCHOOL 2016 public Ferlach Austria
CASPIAN SEA RESORT 2012 public, residential, masterplan, hospitality Baku Azerbaijan
6 VOIDS: PXATHENS 2012 exhibition Venice Italy
BELGIAN EMBASSY 2009 public Athens Greece
CAUCASUS CONFERENCE CENTRE 2012 public Qabala Azerbaijan
GERMAN SCHOOL ATHENS 2017 public Athens Greece
LAKE APARTMENTS 2012 residential Bodensdorf Austria
PX ATHENS 2012 public, masterplan Athens Greece
LARNACA AGORA 2011 public Larnaca Cyprus
NOVARA ELEMENTARY SCHOOL 2018 public Vienna Austria
OFFICE A 2010 commercial Athens Greece
HBWBC SCHOOL 2010 public Vienna Austria
DASOUPOLI HIGH SCHOOL 2010 public Nicosia Cyprus
RATHAUSPARK 2009 public Vienna Austria
TOWNHOUSE K 2009 residential Nafplion Greece
VILLA W1 2008 residential Corfu Greece
HELLENIC PARLIAMENT 2008 research Athens Greece
KYRIAZI DEVELOPMENT 2008 commercial, residential Athens Greece
GERMAN DEVELOPMENT 2008 masterplan Sofia Bulgaria
SUPERSTORE V 2008 commercial Athens Greece
MELINA PAVILION 2007 exhibition Athens Greece
GLEISDORF DEVELOPMENT 2007 residential Gleisdorf Austria
HELEXPO PAVILION 2007 exhibition Thessaloniki Greece
VILLA S 2006 residential Vienna Austria
VERTICAL ATTICA 2006 masterplan, research Attica Greece
SCHLOSSMUSEUM 2006 public Linz Austria
EXHIBITION 102x 2006 exhibition Athens Greece
HOUSE M 2004 residential Athens Greece
SKYWALK BRIDGE 2004 public Vienna Austria
HELLENIKON PARK 2004 masterplan Athens Greece
DARNITSA DEVELOPMENT 2003 commercial Kiev Ukraine
TRANSITIONAL INTERSTICES 2003 residential Ano Liosia Greece