Dillon Building

The Charter Oak Bank Building is a historic commercial building at 114-124 Asylum Street in downtown Hartford, Connecticut. Built in 1861, it is the city's only surviving example of commercial Italianate architecture from the mid-19th century. It was listed on the National Register of Historic Places in 1978.

Hartford Female Seminary in Hartford, Connecticut was established in 1823, by Catharine Beecher, making it one of the first major educational institutions for women in the United States. By 1826 it had enrolled nearly 100 students. It implemented then-radical programs such as physical education courses for women. Beecher sought the aid of Mary Lyon in the development of the seminary. The Hartford Female Seminary closed towards the later half of the 19th century. The school was first hosted in a third-floor room in a building at Main and Kinsley Streets in Hartford, then in the basement of the North Church. In 1827 the school moved into a new neoclassical building at 100 Pratt Street (41.7677°N 72.6751°W / 41.7677; -72.6751).Harriet Beecher Stowe taught at the school beginning in November 1827.

The Pratt Street Historic District of Hartford, Connecticut, encompasses all of Pratt Street, between Main and Trumbull Streets, in the city's downtown. This block, which includes 15 buildings (one of which faces Trumbull Street), is the only place in the city where its typical early 20th-century streetscape is retained. All of the buildings in the district were built between 1830 and 1928, a significant number of them designed by major local architects. The district was listed on the National Register of Historic Places in 1983.

The Stackpole, Moore, and Tryon Building is a historic commercial building at 105-115 Asylum Street in downtown Hartford, Connecticut. Built in the mid-19th century, and extensively altered in 1896, it is a good local example of a period building with a Beaux Arts cast-iron facade. It was listed on the National Register of Historic Places in 1978.

The Neiditz Building is a historic commercial building at 111 Pearl Street in Hartford, Connecticut. Built in 1950, it was the first major new office building to be built following the Great Depression. It was listed on the National Register of Historic Places in 2020.

Christ Church Cathedral is a historic church at 955 Main Street in downtown Hartford, Connecticut. Built in the 1820s to a design by Ithiel Town, it is one of the earliest known examples of Gothic Revival architecture in the United States. It was listed on the National Register of Historic Places in 1983. It is the cathedral church of the Episcopal Diocese of Connecticut, whose offices are next door at 45 Church Street.

The Second Church of Christ, known more recently as the South Congregational Church, is a historic church in Hartford, Connecticut. Built in 1825–27, it is one of the oldest surviving public buildings in the city. It is the third home of its congregation, which was founded in 1670, and is one of the oldest purely Congregationalist groups in the nation. The building was listed on the National Register of Historic Places in 1978.

777 Main Street (formerly known as the Hartford National Bank and Trust Building) is a residential skyscraper in Downtown Hartford, Connecticut. Built in 1967, it is a prominent local example of Mid-Century Modern architecture, designed by Welton Becket. It was listed on the National Register of Historic Places in 2014, and was converted to residential use. The building is LEED Platinum® certified by the U.S. Green Building Council, and is Connecticut's first microgrid. Clean, combustion-free renewable energy to power and heat the building is created on-site from 336 Rooftop Solar panels and a 400 kilowatt fuel cell. These clean energy sources also power the 31 electric charging stations in the building's garage, helping to bolster clean commuting.

City Place I is a 38-story, 163.7 m (537 ft) skyscraper at 185 Asylum Street in Hartford, Connecticut. It is the tallest building in the state, and two meters taller than Travelers Tower, built in 1919. City Place I was designed by Skidmore, Owings & Merrill, and completed in 1980. The majority of the building is office space, though there are various restaurant and retail establishments found on the lower floors. The building was sold on April 2, 2012 to CommonWealth REIT, a real estate investment trust based in Newton, Massachusetts, for $99 million, by the original owner, CityPlace LLC. This price is approx. $112 per square foot.

Hartford 21 is a 36-story, 134 m (440 ft) skyscraper located at 211 Trumbull Street in Downtown Hartford, Connecticut. It is the fourth tallest building in Hartford and the fifth in the state.

The XL Center (originally known as the Hartford Civic Center) is a multi-purpose arena and convention center located in downtown Hartford, Connecticut. Owned by the City of Hartford, it is managed by the quasi-public Capital Region Development Authority (CRDA) under a lease with the city and operated by Spectra. In December 2007, the center was renamed when the arena's naming rights were sold to XL Group insurance company in a six-year agreement. The arena is ranked the 28th largest among college basketball arenas. It opened in 1975 as the Hartford Civic Center and was originally located adjacent to Civic Center Mall, which was demolished in 2004. It consists of two facilities: the Veterans Memorial Coliseum and the Exhibition Center. On March 21, 2007, the CRDA selected the Northland/Anschutz Entertainment Group proposal to operate the arena complex; Northland also developed the Hartford 21 residential tower on the adjacent Civic Center Mall site. It was revealed that Northland will assume total responsibility for the building paying for any and all losses, and will keep any profits. In 2012, the CRDA put the contract out to bid with hopes of combining the operations with Rentschler Field. In February 2013, Global Spectrum of Philadelphia was chosen to take over both the XL Center and Rentschler Field with Ovations Food Services taking over all food and beverage operations.

The R. and F. Cheney Building, also known as the Brown Thomson Building, is a commercial building designed by noted American architect H. H. Richardson. It is located at 942 Main Street, Hartford, Connecticut, and is now on the National Register of Historic Places.