Each city has a unique fabric corresponding to the dominant modes of production, legal control, and guidance systems in which it operates. Any periodic alteration in the settled mode of housing supply, in this sense, potentially results in an intrinsic change in ‘typological diversity’ and ‘spatial continuity’ within the collective fabric. If not coordinated by design and development control, the emergent variation in the housing typology may result in spatial fragmentation through the collective urban fabric. To test that point, the paper aims to reveal the subtle relationship between the two phenomena on a morphological basis. Through rapidly changing socio-economic dynamics in the last century, the cities of Turkey are subject to different housing production forms, therefore, offering a relevant context to examine the issue.

Along with a planning system without effective development control tools to ensure spatial coherence responding to the dynamic nature of the housing sector, the residential fabric of Ankara comprises all the dominant housing typologies that emerged within different periods in Turkey. Accordingly, following a historical review of the housing supply forms in Turkey, the paper maps the emerging patterns of modern housing typologies through successive development zones of the city. It examines their internal typomorphological characteristics via a series of transects. Utilizing the GIS-based coherency analysis, the level of morphological continuity on each transect is calculated. Consequently, in light of the findings of the analysis, a critical perspective on housing production and development control creating different forms of spatial fragmentation through typological variation is suggested.@en

Urban morphology has made remarkable progress within its quantitative track. This advancement signifies the potential contribution of the school of typomorphology to the growing literature on urban sustainability that tends to measure the relative performance of urban fabrics with metric variables. To that end, a joint framework combining the different metric definitions of the urban form provided by individual studies would ensure a terminological consensus, which is somewhat lacking in the current literature. Reviewing the indicators of the building fabric and the original definitions suggested in prominent studies in urban morphology, this paper proposed an expanded index for the so-called metric typomorphology. In this framework, following the conceptual and metric formulations of the form indicators, the building fabrics of the three neighbourhoods in Rotterdam in the Netherlands are mapped by typo-morphological analyses. This paper suggests an eventual computational basis for the typological characterization of tissues with a particular reference to the building fabric.

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