Once considered to be less stylish than other neighborhoods in the Upper East Side, Carnegie Hill is now on of the most sought after, prestigious residential areas in Manhattan. Named for the Andrew Carnegie Mansion, Carnegie Hill is the northern most affluent neighborhood in the Upper East Side, allowing it to maintain its historic integrity. Wood-framed houses and Neo-Gothic mansions border apartment buildings on the sunny, tree-lined avenues. On the side streets, brownstones with stoops are next to townhouses. Mansions have mostly been converted into offices for organizations, such as museums and universities. Many private schools make this old Europe-esque neighborhood especially appealing to upper-class young families. Even though there is high demand for real estate in this area, local groups wage legal battles against the construction of high-rises and condominium projects. These actions have kept Carnegie Hill as an oasis, with open streets and young trees next to old storefronts, making the neighborhood more desirable to residents who want something more personal and old-fashioned.