On December 12, 2023, the Landmarks Preservation Commission voted to calendar the Heckscher Building at 730 Fifth Avenue for future designation. The building, now the Crown Building, is one of Fifth Avenue’s early skyscrapers. 

On October 17, 2023, the Landmarks Preservation Commission voted to calendar the Tremont Branch of the New York Public Library for future designation. The library, located at 1866 Washington Avenue in the Bronx, is one of the 67 circulating libraries created with funding by Andrew Carnegie. 

On August 15, 2023, the Landmarks Preservation Commission voted to calendar the Old Croton Aqueduct Walk for consideration as a scenic landmark. The Aqueduct Walk, located between the University Heights and Kingsbridge Heights sections of the Bronx, is a linear park along Aqueduct Avenue between West Kingsbridge Road and Burnside Avenue. 

On May 23, 2023, the Landmarks Preservation Commission voted to designate the former Colored School No. 4 as an individual landmark. The former school, located at 128 West 17th Street in Chelsea, is the city’s sole surviving school building that exclusively served African American students in the second half of the 19th century. 

On May 9, 2023, the Landmarks Preservation Commission voted to designate the Linden Street Historic District in Bushwick. The district consists of 32 brick and brownstone row houses located from 3 through 13 Linden Street on the south side of the street and 15 through 55 Linden Street on the north side of the street between Bushwick Avenue and Broadway. The historic district is the first within Bushwick. 

On March 14, 2023, the Landmarks Preservation Commission voted to calendar a firehouse and an FDNY telegraph office for designation as individual landmarks. The Firehouse for Engine Company 88/Ladder Company 38 is located at 2225 Belmont Avenue in the Belmont section of the Bronx.