density only with quality - perspective.brussels · expansion areas in the city – former railway...
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Density only with quality
A contribution to the discussion from Vienna
Brigitte JILKADirector general for planning, development and construction
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The villages around Vienna 1773 - 1781
Historical walls,
fortifications and
natural borders
have alwaysenforced density
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Monocentric City with radial axis
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Expansion areas in the City – former railway areas
implementation ofdensity in a densecity pattern
the challenge tomend the wounds
Nordbahnhof
Nordwestbahnhof
OstbahnhofSüdbahnhof
Westbahnhof
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Urban Expansion
benefits of density in urban delopmentareas
edificial energy effiency
short distances to manage every days life
less costly infrastructure
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Principles to balance density• Subsequence and broad offer of usable open
spaces
• A lot of commonly shareable services
• Rooms and spaces to establish joint enterprisesof the residents
• Safe and as far as possible carfree network ofpaths
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Sonnwendviertel – a network of common services and jointprojects as addit value to balance the high density
Quelle: https://farm4.staticflickr.com/3931/15233793217_cdc7fab3bc_b.jpg
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Sonnwendviertel – common facilities are linked via open spaces andfootpaths
© Univ. Prof. Arch. DI Klaus Kada
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Addi
tval
uein
form
of
a br
idge
forw
alke
rs
Urban developmentcontracts to monitorthe quality of therealization
Triiiple
Wienerberg City
Riverside
Heumarkt
Danube Flats
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Central Quarter Park
Courtyard Design
Urban gardening
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Masterplan (J. Tovatt)„The score of public space“ (J. Gehl)Brandbook. aspern Die Seestadt Wiens
Aspern advisory council
Accompanying research by ASCR(energy efficiency, digitalization, housing)
Legal proceduresEnvironmental assessment, landuse andbuilding plan, program for social housing, program for educational institutions etc.
Aspern Seestadtplanned density
monitored quality
© Wien 3420 AG
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SEESTADT
A S P E R N
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Seestadt FEELING
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typical shopping centerfrom the 1990ies
laminar, surfaceconsuming, waste of thescarce ressource„ground“
creating a second level of usein the 2010ieshousing (mainlyduplex/maisonettes) on therooflarge elevated courtyard
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Donau City and Danube Flats five decades of densification
© project a01 architects
70ies
90ies
2000ies
2010ies 2020ies
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Urban Renovation
benefits of more density in alreadydensely built up areas
use of existing infrastructure andimplementation of last mile
enhancing the quality of layout of flats andoffices
optimization of roof uses and yards
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Haus des Meeres im Flakturm
Dachaufbau Radetzkystraße Zubau Studentenheim Gasometer
Modern structures build
into courtyards in addition to the
traditional perimeter block
development
Zentagasse, Siebenbrunnengasse
Annexes, moreor less brachial
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• Definition of focus areas for refurbishment - basis for theapplication of housing aid to achieve socially unerring and affordablehousing
• Cooperative development procedures
• Derivative of blockrenovation Development of livable quarters
• Management of present stock - restructuring of theGB*/Stadtteilmanagement both spatially and as regards content
• Groundfloor management – activation of vacant units
Development strategy for the period of promotorism ja, aber sozial ausgewogen, mit Qualität und stadtstrukturellem Mehrwert
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Large areas build up in Wilhelminian style (period of promotorism)
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Analyses
Status and condition of theexisting housing stock
very good – goodgood – mediummedium – badbad – very bad
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Row houses
Big scale
New building
Garage
Demolition of roofs
Demolition of yard
Bestand
Konzept Breiteneder LiegenschaftenScheme of restructuring
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How it appears today
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Block development Fünfhaus Nord
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quality in every detail
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draftconcept for the landscaping design
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Gloomy appearance of the old backyards
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Micro green – light and shady
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Development strategy for housing estates50ies / 60ies / 70ies
MASTERPLAN POSTWAR-ESTATES
Multilateral approach combining several politics – purposeful cooperationbetween political ressorts
• Design typologies for further development and building
• Implement cooperative development procedures
• Launch showcases for residents participation
• Determine lighthouseprojects and pilot areas
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It looks unfinishedthere is nourban feeling
Five steps for reform
• Analyses and evaluation of potentials
• Cooperative development procedures with owners and inhabitants
• Measures to enhance the functional quality of the estates in order to improvethe quality of life
• qualitative controlling of the realization of annexes and extensions in order tosecure social balance
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Analyses and evaluation of development potential
Each structure shows deficits and bears potential to create added value
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Referenceproject for a reuse or multiuse of a parking lot
The garage below the new buildings will serve also for the former users of theparking lot
Roofs of newbuildings will be used forurban gardening
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Referenceprojects for theenhencement of former garages
Danube
Presence
Future
Severalsimilarsituations
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Typs of action for further development andbuilding
• „to double down“ (add another storey, upgrade attic floors, convertroofs)
• „to build up“ (annexes, additional elements to close open structuresabove all by using parkings spaces thatb are already part of thesealed surface, cover fire-proof walls)
• „to demolish and build new“ (scenario for cases where renovation isnot economically presentable or where blatant deficiencies areobvious)
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Thank you