The aim to explore and monitor housing-market fundamentals (prices, dwelling features, area density, residents, etc) at a macrolocational level is motivated by various policy-related and business-related goals (for example, see Tu, 2000). Housing-market segmentation (that is, the emergence of housing submarkets), a concept with increasing relevance, relates to the differentiation of housing through the income and preferences of residents and in terms of administrative circumstances. The causes of segmentation processes pertain to a multitude of impacts related to geographical location (including topographical constraints), structural (that is, house-specific and site-specific) attributes, prices, consumer preferences and incomes, government regulation, and asymmetric information and power positions between market participants (for example, see Watkins, 2001). The monitoring of segmentation has various practical implications when a comparative evaluation of attractiveness is required.However, the research problem of determining segments and tracking the processes behind segmentation has also received attention as a purely academic endeavour within housing economics. According to Maclennan and Tu (1996), submarkets are the product of market imperfections in relation to local-level supply-and-demand structures. Thus, differentiation of preferences and product groups, trade friction and search processes lead to a complexity and variety in the housing commodity; furthermore, any equilibrium tends to be unstable, in the short term at least. Although depending on the exact definitions used, in any one housing-market context segments are likely to occur over time and space, which implies that the verification of segmentation is predominantly an empirical issue. Although a national housing market is Using the self-organising map to identify regularities across country-specific housing-market contexts Abstract. The aim of exploring and monitoring housing-market fundamentals (prices, dwelling features, area density, residents, and so on) on a macrolocational level relates to both public and private sector policymaking. Housing market segmentation (that is, the emergence of housing submarkets), a concept with increasing relevance, is defined as the differentiation of housing in terms of the income and preferences of the residents and in terms of administrative circumstances. In order to capture such segmentation empirically, the author applies a fairly new and emerging technique known as the`selforganising' map (SOM), or`Kohonen map'. The SOM is a type of (artificial) neural network öa nonlinear and flexible (that is, nonparametric or semiparametric) regression and`machine learning' technique. By utilising the ability of the SOM to visualise patterns, one can analyse various dimensions within the variation of the dataset. Segmentation may then be detected depending on the resulting patterns across the map layers, each of which represents the data variation for one input variable. Utilising an inductive modelling strategy, t...