Lovelace's professional career was entirely with Harland Bartholomew and Associates.
He became partner in 1943, senior partner in 1961, and chairman of the board upon the firm's incorporation in 1978.
He retired in 1981.

During the 46 years that Lovelace was with Harland Bartholomew and Associates, he prepared comprehensive plans for such cities as:
Washington, D.C.
Vancouver, British Columbia
Dallas, Texas
Waco, Texas
Corpus Christi, Texas
Lincoln, Nebraska
Oklahoma City, Oklahoma
Baton Rouge, Louisiana
Hamilton County, Ohio
Kansas City, Kansas
St. Louis County, Missouri 
Racine, Wisconsin
Kenosha, Wisconsin
He also prepared comprehensive plans for numerous smaller cities and suburbs, particularly those of St. Louis, Chicago, and Cincinnati.

Lovelace was recognized as an authority in long-range planning, including plans for military installations.
During his career, he prepared plans for naval facilities in Hawaii and the Philippine Islands as well as numerous Army and Air Force installations across the country.

In his long career, Lovelace also prepared land-use control programs and site planning projects in the United States and Canada.
 His site-planning projects included Kaanapali, Hawaii, and the grounds at the Gateway Arch National Park (then known as Jefferson National Expansion Memorial) in St. Louis, Missouri.

He offered expert testimony in numerous land use control litigation cases.

Lovelace devised methodologies for relating urban park and recreational plans to the needs and interests of a population.
Notable works in this field include the master plan for Balboa Park in San Diego, California, and for the park system of Charlotte and Mecklenberg counties in North Carolina.
He also prepared plans for recreation areas, including Cannon Reservoir, Missouri, and Babler State Park, also in Missouri.

In another facet of his career, Lovelace prepared campus master plans for universities and secondary schools in Wisconsin, Alabama, New York, and Hawaii.
He also prepared plans for private residences and neighborhoods.
One of Lovelace's last design interests was a courtyard for the University of Toronto Biological Station at Joker's Hill.

Lovelace investigated the problems of the extension of cities.
Along with Herbert Hare, he developed the concept of planning for flooding during urbanization.
Lovelace and William Weismantel developed concept of the Density Zoning.
Lovelace also worked on land protection.
Lovelace's professional career was entirely with Harland Bartholomew and Associates. He became partner in 1943, senior partner in 1961, and chairman of the board upon the firm's incorporation in 1978. He retired in 1981.
During the 46 years that Lovelace was with Harland Bartholomew and Associates, he prepared comprehensive plans for such cities as:
Washington, D.C.
Vancouver, British Columbia
Dallas, Texas
Waco, Texas
Corpus Christi, Texas
Lincoln, Nebraska
Oklahoma City, Oklahoma
Baton Rouge, Louisiana
Hamilton County, Ohio
Kansas City, Kansas
St. Louis County, Missouri 
Racine, Wisconsin
Kenosha, Wisconsin
He also prepared comprehensive plans for numerous smaller cities and suburbs, particularly those of St. Louis, Chicago, and Cincinnati.
Lovelace was recognized as an authority in long-range planning, including plans for military installations. During his career, he prepared plans for naval facilities in Hawaii and the Philippine Islands as well as numerous Army and Air Force installations across the country.
In his long career, Lovelace also prepared land-use control programs and site planning projects in the United States and Canada.  His site-planning projects included Kaanapali, Hawaii, and the grounds at the Gateway Arch National Park (then known as Jefferson National Expansion Memorial) in St. Louis, Missouri.
He offered expert testimony in numerous land use control litigation cases.
Lovelace devised methodologies for relating urban park and recreational plans to the needs and interests of a population. Notable works in this field include the master plan for Balboa Park in San Diego, California, and for the park system of Charlotte and Mecklenberg counties in North Carolina. He also prepared plans for recreation areas, including Cannon Reservoir, Missouri, and Babler State Park, also in Missouri.
In another facet of his career, Lovelace prepared campus master plans for universities and secondary schools in Wisconsin, Alabama, New York, and Hawaii. He also prepared plans for private residences and neighborhoods. One of Lovelace's last design interests was a courtyard for the University of Toronto Biological Station at Joker's Hill.
Lovelace investigated the problems of the extension of cities. Along with Herbert Hare, he developed the concept of planning for flooding during urbanization. Lovelace and William Weismantel developed concept of the Density Zoning. Lovelace also worked on land protection.
Eldridge Lovelace