President Donald Trump has proposed painting a historic federal office building next to the White House with what he has described as a “magic paint,” but preservation specialists are warning that the material may not be suitable for the structure’s granite exterior.
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The proposal centres on the Eisenhower Executive Office Building, an ornate 19th-century structure adjacent to the White House. According to documents reviewed by CNN, Trump has privately promoted the use of a mineral silicate coating that he believes could protect the stone while giving the building a bright white appearance.
However, heritage experts say the product is unlikely to work as intended and could potentially damage the building.
Proposed makeover for historic complex
The proposal will be reviewed by the U.S. Commission of Fine Arts, the federal body responsible for overseeing design changes to government buildings in Washington. The commission is expected to consider the plan during an upcoming meeting.
Renderings submitted for review present two possible approaches: painting the entire structure white, or applying white paint while leaving the exposed granite of the basement and sub-basement untouched.
In briefing materials prepared ahead of the meeting, the White House said the building’s exterior has suffered from decades of neglect since its completion in the late 1800s. Officials cited staining, cracks and abrasions in the granite that they attributed to years of inadequate maintenance.
Trump has reportedly argued that the coating — which he has described as “magic paint with silicate” — would reinforce the stone, prevent water damage and staining, and reduce the need for frequent repainting.
Preservationists question the science
Two preservation groups — the DC Preservation League and Cultural Heritage Partners — dispute those claims. They have commissioned an analysis from 25 specialists experienced in restoration projects involving mineral silicate paints.
The experts concluded that such paints are generally unsuitable for granite surfaces because the stone does not chemically bond with the material. According to their findings, applying a primer in an attempt to improve adhesion could permanently damage the stone.
They also said the paint would not strengthen granite or significantly improve its durability, and could even make discoloration more noticeable compared with the natural stone surface.
The groups have suggested alternative measures to improve the building’s appearance and condition, including conservation-grade cleaning, restoration of ironwork, improved lighting, window film to brighten the façade and new landscaping.
Legal challenge underway
The preservation organisations have also filed a lawsuit in the U.S. District Court for the District of Columbia seeking to halt any exterior alterations until a full environmental and historic-preservation review is completed.
They argue that bypassing the standard review process could lead to irreversible changes to one of Washington’s most prominent historic structures.
Completed in 1888, the Eisenhower Executive Office Building originally housed the State, War and Navy departments. Today it provides office space for senior presidential staff, including personnel from the vice president’s office, the National Security Council and the Office of Management and Budget.
The building contains more than 500 rooms with elaborate architectural features such as gilded interiors, stained-glass rotundas and ornate cast-iron details.
A controversial building since its debut
Despite its grandeur, the structure has been a subject of debate since it was completed. Designed by architect Alfred B. Mullett in the French Second Empire style, the building took around 17 years to construct.
By the time it was finished, the style had fallen out of favour with many critics. The American writer Mark Twain is widely quoted as describing it as “the ugliest building in America”.
White House officials have not yet responded publicly to the preservation groups’ findings.
Adapted by ASEAN Now. Source 13 April 2026
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