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However, practically side-by-side with the residences of Metro Manila's elite are slums and squattered areas, most of which are in the outskirts of the aforementioned gated communities, as well as areas left behind by the rapid development of the rest of Metro Manila, such as Tondo and Sampaloc in Manila, Guadalupe in Makati, some parts of Marikina, Caloocan, and Valenzuela, and most parts of Navotas. Highway roadsides are often crowded with corrugated-steel-roofed huts and straw markets by which livelihood is obtained, in a stark contrast to the gated subdivisions present in Metro Manila. Less than 10% of the population actually live in the aformentioned neighborhoods, while the rest live in non-gated (normal) neighborhoods in regular houses, apartments, tenements and shacks.