The Costa Blanca in the province of Alicante (Spain) represents an emblematic example of suburban development around Mediterranean medium-sized cities, with the existence of a wide range of residential settlements devoted both to the native population and foreign-born groups. Condominiums, gated communities and single-family housing have few facilities and inadequate space for outdoor activities related to leisure and recreation. Such settlements are characterized by a fluctuation in population which increases in the summer, fostered by the high demand for sun, sand and sea tourism. At the same time, they display a lack of vibrant public spaces and a narrow range of accommodation options and activities. Urban sociability, understood as social opportunities afforded by space characteristics, is highly dependent on physical features such as variety in space, diversity of housing types and configuration of urban activities. The aim of this study is to analyze these aforementioned factors in two predominantly residential settlements, i.e., Gran Alacant and La Marina-Oasis. Our research indicates a likely relationship among the following urban features in terms of whether or not they promote social life: the existing number and location of activities (retail, facilities and residential tourism related services), the distribution and diversity of dwellings, and the configuration of open spaces. Each of the aforementioned urban features is analyzed in order to understand how they may contribute to sociability.