In 1887, Cornell built the Hyde Park Hotel (left, 1887–1963) on the former site of his home at Lake Park and East Hyde Park Boulevard.
 The hotel was expanded in 1891.
 In 1914, the hotel expanded (for a second time), which doubled its capacity to 300 rooms (see right).

Paul Cornell also purchased the swampland and prairie 8 miles (12.9 km) south of the Loop at the intersection of the Lake Shore and Michigan Southern Railway and the Illinois Central Railroad at a location that now is 75th Street and South Chicago Avenue in 1855.
 He subdivided parcels for sale through the 1870s.
 The area, which was first named Cornell, became Grand Crossing.
He had accumulated a total of 960 acres (1.5 sq mi; 3.9 km²) land at one point.
 The reason that the name was changed was the pre-existence of Cornell, Illinois.

Paul Cornell established the Cornell Watch Factory at 76th Street and the Illinois Central tracks in 1876 in Grand Crossing.
Among his other ventures, Cornell founded Republic Life Insurance Company and the American Bronze Company.
He served as secretary for a group of Chicagoans who purchased 167 acres (0.68 km²) in 1853 to create Oak Woods Cemetery.
 He has a 15 feet (4.6 m) tall zinc monument at the cemetery.
In 1887, Cornell built the Hyde Park Hotel (left, 1887–1963) on the former site of his home at Lake Park and East Hyde Park Boulevard.  The hotel was expanded in 1891.  In 1914, the hotel expanded (for a second time), which doubled its capacity to 300 rooms (see right).
Paul Cornell also purchased the swampland and prairie 8 miles (12.9 km) south of the Loop at the intersection of the Lake Shore and Michigan Southern Railway and the Illinois Central Railroad at a location that now is 75th Street and South Chicago Avenue in 1855.  He subdivided parcels for sale through the 1870s.  The area, which was first named Cornell, became Grand Crossing. He had accumulated a total of 960 acres (1.5 sq mi; 3.9 km²) land at one point.  The reason that the name was changed was the pre-existence of Cornell, Illinois.
Paul Cornell established the Cornell Watch Factory at 76th Street and the Illinois Central tracks in 1876 in Grand Crossing. Among his other ventures, Cornell founded Republic Life Insurance Company and the American Bronze Company. He served as secretary for a group of Chicagoans who purchased 167 acres (0.68 km²) in 1853 to create Oak Woods Cemetery.  He has a 15 feet (4.6 m) tall zinc monument at the cemetery.
Paul Cornell (lawyer)