The city's first motorized streetcars began service in 1888. They generated growth in areas of the district beyond the City of Washington's original boundaries. Washington's urban plan was expanded throughout the district in the following decades. Georgetown's street grid and other administrative details were formally merged to those of the legal City of Washington in 1895. However, the city had poor housing conditions and strained public works. The district was the first city in the nation to undergo urban renewal projects as part of the "City Beautiful movement" in the early 1900s.