Numerous aged residential neighborhoods in Israel are under the process of urban regeneration. The declaration of national or municipal regeneration process indicates an inherent anti adaptive component in the structure and dynamics of these neighborhoods. A rigid inflexible element that causes difficulty to adapt to spontaneous change over time, led them towards obsolescence, weathering and stagnation.

An urban regeneration plan, which provides the basis for spatial development, holds a double opportunity: a physical improvement for the regenerating environment alongside the reformulation of urban connections between the regenerating complex and its surroundings.

Urban adaptability is a set of features that enables spatial flexibility and gradual change, provides dynamism in the area's functioning, and over time contributes to the consolidation of the urban network. Therefore, imparting adaptive features to a regenerating complex is equivalent to realizing the goals of urban regenerating and conforms to its very definition. An area built following a plan that reflects adaptive components could handle the city's complexity as an ever-changing open-ended system.

This research examines whether an urban regeneration plan lays an adaptive planning framework, mirrors adaptive characters and thus actualizing the purpose of urban regenerating.

To this end, 5 pairs of plans were analyzed - the regeneration plan compared to the existing plan according to which the existing neighborhood was built. The analysis was conducted using an (Anti) Adaptive evaluation tool that was developed as part of the study. The evaluation tool is based on 3 main spatial layers: (1) pattern of street network, (2) built elements, and (3) land use, which the research finds as principle influential foundations for urban quality. Each layer consists of 2 measures that can be investigated using the plan documents. A value scale (1-5), based on professional literature and calibrated according to reference case studies, was attached to each measure. The use of the value scale correlates with urban adaptability as a-binary feature that has a range and enables comparison between plans.

Placing the results on a radar chart - an informative tool for presenting data allows intuitive evaluation and compression, forms a polygon that represents the plan's image of adaptability. It enables placing the plan along the adaptability spectrum and illustrates its component's interdependence.

Relatively low values obtained from the analysis of existing plans support a premise in the study, that neighborhoods facing the regeneration process present anti adaptive features in their plans.

Viewing the results of all cases examined indicate an improvement in the adaptive infrastructure between existing and new plans. The proportion of improvement differs among plan pairs. Nevertheless, in all cases, it is inferior in comparison to the potential adaptation value demonstrated in the reference cases. The study's findings indicate that benefit does not correlate with location or other spatial circumstances such as topography, consequently leading to the conclusion that improvement mostly depends on the planner's appreciation of the implications of their professional decisions.

Data reveals a pattern of change in each of the 3 main spatial layers. It was found that a change in the pattern of street network mainly depends on the awareness of the prevailing concept of road planning at present time. Contemporary, branched, multi-junction road network, as opposed to a hierarchical and confined modern roads system in the past. Parallel to that, the pattern of change in the layer of land-use reflects a situation where awareness subsists, yet improvement does not appear due to immovable planning norms. Despite the popularity of the mixed-use topic in the theoretical discourse, in practice, the provisions of the plans rarely allow their flexibility. In the study, the most significant improvement pattern between existing and new plans occurs in the layer of the built elements. This could be attributed to the gap left for improvement by the anti-adaptive starting point of the existing state, inward-turned design, which is widely spread, not following street paths and including extensive open spaces. The research suggests observing the pattern of change limitation as an expression of an economic norm, a crucial driving force that on the one hand, contributes indirectly to strengthening adaptability, and on the other hand, narrows the perspective and limits adaptability improvement to the point of realization of economic feasibility.

Research insights, following the theory of the neoliberal spirit that describes, among others, the mechanism of self-replication, and in light of claims about the centrality of economics in urban renewal processes, drives a call for a change in view regarding regeneration plans and urge to characterize them as projects for the public good. The research considers it will be a first step towards altering the norms and reformulate the links between regeneration and economic value, and in order to create quality values in planning (also) in the form of adaptive traits.

Good enough planning is an efficient and optimal design that maximizes possibilities and reduces negative effects. The prism of adaptive features provides good foundation for it and can create a sustainable, high quality, flexible and adaptable urban space.