Landscape designs and military service After his time at Cornell, Peaslee moved to
Washington, D.C., where he began working as a landscape designer for the United States Office of Public Buildings and Grounds, assisting his Cornell lecturer
George Burnap. He taught landscape architecture as a visiting fellow at the
University of Illinois Urbana-Champaign from 1914 to 1916. In 1914, Peaslee and Burnap joined other officials from his office and members of the
United States Commission of Fine Arts (CFA) on a tour of European gardens. They visited France, Italy, Spain, and Switzerland, seeking inspiration for planned gardens and parks in the United States. Peaslee studied the details of park designs in Europe, photographing and sketching water features and ornamentations. At the time, Burnap was designing
Meridian Hill Park, an urban park in Washington, D.C., but was dismissed from his position in 1916. Peaslee was selected to replace him as lead designer, overseeing the park's construction from 1917 to 1935. His work on Meridian Hill Park would become his best known design. in
Washington, D.C. is Peaslee's best known design. According to Peaslee, "From a beginning as Landscape Architectural Designer in 1915, through successive stages as Landscape Architect, and then Architect of the Office of Public Buildings and Grounds, and finally as Architect or Consulting Architect in independent practice, I either personally prepared, or directly supervised the preparation of all drawings for the visible construction of [Meridian Hill Park] and drafted the specifications covering visible design." In addition to his work on Meridian Hill Park, in the late 1910s Peaslee designed the Field House in
East Potomac Park, worked with Burnap to design
Montrose Park in
Georgetown, and designed the Fort Lincoln Cemetery chapel and gatehouse in
Brentwood, Maryland. He authored eight articles in
The Park International in the early 1920s which were focused on park building designs. Another one of the city's early woman architects,
Gertrude Sawyer, worked for Peaslee for around a decade.
Residential designs Some of Peaslee's early residential designs included a house for
Henry Berliner in 1922, located at 2829 Tilden Street NW in the
Sheridan-Kalorama neighborhood, the
Colonel William Robert Davis House in 1924, located at 3020 Albemarle Street NW in the
Forest Hills neighborhood, 29 and 33 Kalorama Circle NW in 1925, and 3001 Garrison Street NW in 1928, also located in Forest Hills. The 25-acre (10 ha) estate on Garrison Street NW was the residence of
Charles Hook Tompkins, whose construction company built the
Lincoln Memorial Reflecting Pool and the
White House East Wing, and now serves as the
Peruvian ambassadorial residence. In 1925, Peaslee was hired to combine and expand two properties in Georgetown. The house, located at 3410 Volta Place NW, was expanded again several years later following designs by Greely. In 1925, Peaslee designed a house for Colonel
Clarence O. Sherrill at 2440 Kalorama Road NW in Sheridan-Kalorama, incorporating salvaged items from a demolished building. Two years later, Peaslee designed the Dr. W. Calhoun Sterling House, located at 2618 31st Street NW in the
Woodland Normanstone neighborhood. He incorporated arches into Sterling's house that were salvaged from the
Hay–Adams House, shortly before it was demolished and replaced with the
Hay–Adams Hotel. Peaslee also repurposed a door from the Hay–Adams House into a residence he designed at 3014 Woodland Drive NW in 1928, also located in Woodland Normanstone. Although many of Peaslee's residential designs were
Colonial Revival, in 1927 he chose
Art Deco when designing
The Moorings apartment building at 1909 Q Street NW in
Dupont Circle. From 1931 to 1941, Peaslee worked with Greely and architect Harvey Baxter in designing
Colony Hill, a
planned community in Washington, D.C., consisting of a few dozen houses. The community's first eleven Colonial Revival houses were designed by Peaslee, some of which were featured in
The American Architect,
House Beautiful, and
Architectural Forum. Additional examples of residential buildings Peaslee designed include the house at 417 6th Street SE in
Capitol Hill, built in 1937, and three houses in Forest Hills: 4600 Linnean Avenue NW, 3000 Garrison Street NW, and 5020 Linnean Avenue NW, built in 1931, 1938, and 1941, respectively.
Monument and public art designs (Iwo Jima Memorial) in
Arlington Ridge Park. In 1921, Peaslee designed the
Dante Alighieri statue landscaping in Meridian Hill Park. Several years later, he designed a base for the
Noyes Armillary Sphere, also located in Meridian Hill Park. In 1923, Peaslee designed a base for the
Edmund Burke statue, located on
Massachusetts Avenue NW in Burke Park. That same year the
Zero Milestone, located in
President's Park south of the
White House, was dedicated. Peaslee had been chosen to design the monument by Dr. S. M. Johnson, an advocate for the
Good Roads Movement. Peaslee was one of five finalists in a competition to design the
Tomb of the Unknown Soldier at
Arlington National Cemetery, but architect
Lorimer Rich was chosen in 1927. Peaslee and
Nathan C. Wyeth served as associate architects on
Frederick H. Brooke's design of the
District of Columbia War Memorial, which was built on the National Mall in 1931. In the 1950s, Peaslee was chosen to design the
Marine Corps War Memorial (more commonly known as the Iwo Jima Memorial) along with sculptor
Felix de Weldon, based on the photograph
Raising the Flag on Iwo Jima by
Joe Rosenthal. Peaslee also designed the 7.5-acre (3 ha) surrounding area, including a reviewing stand, pathways, and parking. In order to match the 10-foot (0.3 m) base with the volcanic sand color of the large sculpture, Peaslee used black
diabase granite from a Swedish quarry, mixing it with black sand and concrete.
Restorations In addition to designing new buildings and landscape work, Peaslee also took part in restoration projects. Working with architect
Fiske Kimball from 1928 to 1932, Peaslee's first major renovation project was the headquarters of the
National Society of the Colonial Dames of America, which had purchased
Dumbarton House in Georgetown. Around this time Peaslee also oversaw exterior and interior renovations of
Belle Grove Plantation's manor house near
Middletown, Virginia. Additional projects in the 1930s included reconstruction of the original 1676
Maryland State House in
St. Mary's City, Maryland, and renovations and additions to the
Friendship House in Capitol Hill. In the 1950s, Peaslee oversaw restoration of two churches designed by noted architect
Benjamin Henry Latrobe: the
Christ Church in Capitol Hill, and
St. John's Episcopal Church, adjacent to
Lafayette Square. His work at St. John's included extensive renovations of the recently purchased
Ashburton House, which was converted into a parish hall. ==Personal life and legacy==