Pier 4 is a mixed-use project on the South Boston Waterfront that will include approximately 1 million square feet of hotel, residential, retail and civic uses. Boasting a highly visible and accessible location on the bustling waterfront and neighboring the Financial District, Pier 4 will become a vibrant place to shop, dine, live, work, and visit - day and night. The Hanover Company and UDR, Inc. have begun construction of 100 Pier 4, the first phase of development of Pier 4. The groundbreaking of 100 Pier 4 marks a watershed moment for the city's rapidly developing waterfront community as it is one of the first and largest apartment developments to take shape in the emerging South Boston waterfront neighborhood. When complete, 100 Pier 4 and the entire Pier 4 project will offer an active, urban professionals and growing families.
| Demographics | 1 Mile Radius | 3 Mile Radius | 5 Mile Radius |
| Population (2011) | 14,132 | 287,725 | 790,283 |
| Households (2011) | 7,708 | 128,549 | 331,152 |
| Average Household Income (2011) | $124,159 | $95,439 | $84,302 |
| Number of Businesses (2011) | 6,318 | 26,971 | 45,577 |
| Daytime Employment (2011) | 127,738 | 533,130 | 780,198 |