17_Superblock ZT | In der Wiesen Ost



Project title: IN DER WIESEN Ost (Component South)

Recommending party
The project has been submitted by:

Verena Mörkl, CEO Superblock ZT GmbH


Country: Austria

City: Vienna

Address: In der Wiesen 7a / Helene-Thimig-Weg 10, 1230 Vienna


Designer or design team architects:
Superblock ZT GmbH


Plot area – Superficie lotto: mq 9.378

Gross Area – Superficie lorda totale: mq 18.325

Of which
residential – Di cui Residenziale:
% 65

Public/communal areas – Spazi collettivi/comuni: % 31

Facilities for the public – Attrezzature pubbliche: % 4

Business/trade – Commerciale: % 0

Offices – Uffici: % 0

Number of residential units – Numero di alloggi: 172

Typology of users – Tipologia di utenti:
Families – Famiglie
Old-aged people – Anziani
Students – Studenti
Foreigners/immigrants – Stranieri o immigrati
Temporary residents – Residenza temporanea
Other – Altro

Total building costs Euros – Costo di costruzione totale in Euro: € 18.162.480

Building Cost = Total Bulding Cost / Gross Area – Costo di costruzione = Costo di costruzione totale /Superficie lorda totale: 991 €/mq

Floor area ratio = Gross Area / Plot Area – Densità = Superficie lorda totale /Superficie lotto: 1,9

Work started on date – Data inizio lavori: Friday, 1st January 2016

Work completion date – Data ultimazione lavori: Monday, 13th May 2019


EISENHOF Gemeinnützige Wohnungsgesellschaft mbH

Allotment rule – Regola di assegnazione: Competition for subsidized Housing

Reduction cost percentage compared to the market value – Percentuale di riduzione di costo rispetto al valore di mercato: 

assignement %: 90%

rent %: 37%


The costs of construction are about 30% lower than comparable free-financed projects, but the most important issue is the providing of land for  subsidized housing projects, which is managed by the Land Advisory Board. As a winner of the public property development competition the  developer was able to buy the site less than one tenth that of usual costs!

Rental/sale cost compared to market price
Costo di affitto/ vendita rispetto al mercato:

As it is a subsidized rental housing project, the cost limit is very tight to achieve a low rent, which is covered with gross 7,50 € per m2. This is 40-50% lower than comparable projects in Vienna.

Rules of allocation – Regole di assegnazione:
The rent is covered with gross 7,50 € per m2. To become eligible for a flat, the tenant must be holder of the “Vienna-Ticket”, which is a  confirmation of registration for subsidized and city-owned flats. People who have already been living in Vienna over a longer period will receive preferential treatment, the income must be below a certain limit.

Protection of fragile categories
Tutela categorie fragili:
The aim of the project was to offer economical housing that provides  intelligently conceived, high standard living and additional space for  young families, couples, single parents, and singles. Subsidized housing projects in Vienna include everybody.

Involvement of inhabitants in the building process – Coinvolgimento degli abitanti nel processo:  The focus of the competition was on urban gardening, therefor we provided a lot of gardening facilities. The use of this facilities, as well as the use of all community spaces was managed in a negotiation process with interested tenants by social workers from reality LAB, a company which was commissioned by the developer.

Community accompaniment in the life of the building – Accompagnamento della comunità nella vita dell’edificio: 
Social workers from reality LAB, a company which was commissioned by the developer, still accompany the tenants to create a lively neighborhood and a better understanding for each other. The process is monitored by reality LAB within 2 years of moving in.

Functional mixitè – Mix funzionale

The project includes -apart of various community rooms- a supervised flat-sharing community for homeless girls.

Common spaces and shared living – Spazi comuni e abitare condiviso:
Although attention is devoted to compact, well thought-out, and flexible floor plans, a lot of community spaces are provided to extend the private, such as a sports hall, community kitchen, common laundry room, green houses, roof top terraces and a kid’s playing room. The community hall and the sports hall are open to other residents of the neighborhood.

Techniques and strategies for environmental saving: 
The project is built as a low-energy house with a low-temperature district  heating and green roofs. The project is situated within walking distance of a metro station and every flat has a balcony. The focus on urban
gardening provides a lot of recreational facilities, so the leisure mobility is reduced to a minimum.

Description of the project:

Our reflection is about the search of new qualities in housing, that develop in the interaction between individual and collective. It’s about combinating qualities of individual housing with the efficiency and sustainability of collective housing. Therefore, we propose to associate in a single operation very different typologies : individual and crossing houses with terrace and small garden in street front, reversed duplex with access from corridor and loggia open to the sky, attic duplex with large terrace, panoramic housing.


The project searches to create conditions that favor the emergence of a great typological diversity, in order to answers to the different inhabitants’ wishes, and to give a wealth and complexity to the scale of the block.


An important point of our project is to have mixed social and free sector housing in the same building. Moreover, they have been distributed randomly in the building so that everyone can cohabit and interact freely. Indeed, the project is aimed at all types of families. The residents of the mixed program have different living standards but the same quality of life highlighted by the different typologies of units.


The 53 dwellings are distributed into two builgings, with 68 parking spaces semi-buried. The project develops a volumetry formed by a 3-levels base on which two volumes of two levels in attic are placed, composed exclusivly of duplex housing. The center courtyard is a natural space, mostly planted in burial and surrounded by a deck forming the semi-buried parking’s roof. Pathways integrated into the garden allow to cross the courtyard from the north to the south and to distribute all the intermediate housing with a serie of footbridges above the embankment.