<![CDATA[Consolidated cities face increasing challenges in managing extreme pluvial events, particularly in contexts of high urban density and low ground absorption capacity. This situation is exacerbated by climate change, which has intensified the frequency and severity of rainfall, generating greater volumes of surface runoff. In Resistencia (Chaco, Argentina), a lowland city with minimal drainage slope, recent rainfall exceeded 125 mm within hours, affecting between 40% and 50% of the urban surface. This research aims to update critical data for sustainable urban planning. Urban surfaces were quantified and characterized according to their absorption capacity, revealing a predominance of built-up areas (73.10%) and a low proportion of absorbent ground (16.46%). Vacant plots and inner-block spaces with potential for reconversion were identified, and blocks were classified according to their degree of hydrological favourability and vulnerability. These findings enable the visualization of critical zones and provide technical criteria to guide future interventions. The study contributes to the strengthening of territorial diagnostic tools, articulating spatial analysis, sustainability and adaptive urban planning in a climate scenario of increasing hydrological risk.]]>
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