The Capitol and the White House are two different buildings that house two different branches of the federal government. Congress meets in the Capitol to write federal laws. The president lives and works at the White House and runs the executive branch from there. The two buildings sit about 1.5 miles apart in Washington, D.C., they look nothing alike, and they are guarded by separate police forces under separate rules. News footage cuts between them so often that people mix them up, but almost everything about them is different.
Which Branch Each Building Houses
The split comes from the Constitution itself. Article I gives Congress “all legislative powers,” meaning the authority to write, debate, and pass federal laws.1Congress.gov. Article I – Legislative Branch – Section: Section 1 Legislative Vesting Clause That work happens in the Capitol: bills get introduced, committees hold hearings, and both chambers vote before anything reaches the president’s desk. Congress also controls the federal budget and holds the sole power to declare war.2U.S. Senate. Constitution of the United States
Article II hands a different job to the president: executing those laws once they are passed.3Constitution Annotated. ArtII.1 Overview of Article II, Executive Branch That means running federal agencies, issuing executive orders, directing foreign policy, and appointing officials from Cabinet secretaries to federal judges. The White House is where that work gets coordinated. Fifteen executive departments handle the daily administration of government under the president’s authority.4The White House. The Executive Branch
The third branch sits across the street from the Capitol. The Supreme Court Building at One First Street, NE, occupies its own block on Capitol Hill, keeping the judiciary within a short walk of the legislature but in a completely separate structure.5Supreme Court of the United States. The Supreme Court Building
How to Tell Them Apart by Sight
The Capitol is the one with the massive dome. It stands 288 feet from the base to the top of the Statue of Freedom and is visible from across the city.6Architect of the Capitol. U.S. Capitol Building Below the dome sits the Rotunda, a large circular room used for ceremonies and to honor historical figures. Two long wings extend from the center: one for the House chamber, one for the Senate. The exterior is gray-white marble from decades of expansions.
The White House is much smaller and has no dome. Its most recognizable features are the columned North and South Porticos framing the entrances to the residence. The West Wing holds the Oval Office; the East Wing holds additional offices; the central section is the president’s home. The building’s original Aquia Creek sandstone is painted white, which gives it a cleaner, more uniform look than the Capitol’s marble.7U.S. Geological Survey. Aquia Creek Sandstone
Where They Sit in Washington
The White House stands at 1600 Pennsylvania Avenue NW, near the northern edge of the National Mall and steps from the Treasury Department. The Capitol sits roughly 1.5 miles to the east, on an elevated rise called Jenkins Hill that locals just call “the Hill.” Pennsylvania Avenue runs in a straight line between them and serves as the route for inaugural parades.
The Capitol’s hilltop position was deliberate. It marks the eastern end of the National Mall, and the dome is visible from much of the city. A cluster of congressional office buildings surrounds it, connected to the Capitol by a private underground subway that lets members and staff travel between offices and voting chambers without going outside. The system has three lines and six stations and has been running in some form since 1909.
Who Works Inside
The Capitol houses the 535 voting members of Congress: 100 senators and 435 representatives.8U.S. Capitol – Visitor Center. How Your State Gets Its Seats Congressional Apportionment Thousands of legislative aides, committee staff, researchers, and clerks work alongside them. Rank-and-file members of both chambers earn $174,000 a year, a figure that has not changed since 2009. Congress blocked a potential 3.2 percent adjustment for 2026 through the legislative branch appropriations process.9Congress.gov. Congressional Salaries and Allowances: In Brief
The White House is both the president’s home and workplace, with the Oval Office and senior staff concentrated in the West Wing. The president earns $400,000 a year plus a $50,000 tax-free expense allowance.10Office of the Law Revision Counsel. 3 USC 102 – Compensation of the President The vice president receives $292,300 and, interestingly, has a ceremonial office inside the Capitol as president of the Senate.11Federal Register. January 2026 Pay Schedules Cabinet members and policy advisors work out of both the West Wing and the nearby Eisenhower Executive Office Building.
Different Police Forces Guard Each Building
Each building has its own dedicated law enforcement agency. The United States Capitol Police protect the Capitol complex and members of Congress. Their authority comes from 2 U.S.C. §1961, which lets them make arrests within Capitol Buildings and Grounds for violations of federal, state, or D.C. law.12Office of the Law Revision Counsel. 2 USC Ch. 29 – Capitol Police The force is overseen by the Capitol Police Board, made up of the Senate Sergeant at Arms, the House Sergeant at Arms, and the Architect of the Capitol.
The White House is protected by the Secret Service Uniformed Division, a permanent police force established under 18 U.S.C. §3056A. Their mandate covers the White House complex, the vice president’s residence, foreign embassies, and any location where Secret Service protectees are present.13Office of the Law Revision Counsel. 18 USC 3056A – Powers, Authorities, and Duties of United States Secret Service Uniformed Division Regular Secret Service agents handle close personal protection of the president; the Uniformed Division handles the perimeter, the gates, and the grounds.
Trespassing at either building is a federal offense. Under 18 U.S.C. §1752, knowingly entering restricted buildings or grounds without authorization carries up to one year in prison. If the trespasser carries a weapon or causes serious bodily injury, the charge becomes a felony punishable by up to 10 years.14Office of the Law Revision Counsel. 18 USC 1752 – Restricted Building or Grounds The statute explicitly covers the White House, its grounds, the vice president’s residence, and any location secured by the Secret Service.
How to Visit Each Building
Capitol tours are free and much easier to arrange. The Capitol Visitor Center under the East Front plaza is open Monday through Saturday from 8:30 a.m. to 4:30 p.m., with the last guided tour starting at 3:20 p.m. Reservations are recommended but not required, and same-day passes are sometimes available for early arrivals.15U.S. Capitol – Visitor Center. Book a Tour Everyone passes through magnetometers, and all bags go through X-ray screening.16U.S. Capitol – Visitor Center. Prohibited Items Liquids, aerosols, and various other items are banned. Bringing prohibited items can lead to confiscation, arrest, or criminal penalties.17United States Capitol Police. Prohibited Items
White House tours take more work. U.S. citizens submit requests through their member of Congress; foreign nationals go through their country’s embassy in Washington. Requests can be made up to three months in advance but no fewer than 21 days before the desired date.18National Park Service. How to Tour The White House Tours are self-guided and generally available Tuesday through Thursday from 7:30 to 11:30 a.m. and Friday through Saturday from 7:30 a.m. to 1:30 p.m.19The White House. Visit The White House Schedules shift with little notice based on the president’s calendar or the weather.
All guests must submit personal information through an online RSVP link before arriving. Adults 18 and older need government-issued photo ID, and U.S. citizens in that age group must also provide a Social Security number for security clearance. Children 17 and younger are exempt from both requirements.20The White House. Visit The White House FAQs Expect multiple checkpoints on arrival, and plan to leave early: tour slots are first-come, first-served, and cancellations happen often.
Rules for Protests at Each Site
Both buildings allow public demonstrations, but the permit rules differ because different agencies control the land. On Capitol Grounds, the Capitol Police require a permit for rallies, marches, commercial filming, and similar organized activities. Applications go through the USCP Special Events office, and demonstrations are limited to designated areas.21United States Capitol Police. Permits and First Amendment Applications
The land around the White House, including Lafayette Park and the White House sidewalk, falls under National Park Service jurisdiction. Groups of 25 or fewer can demonstrate without a permit. Larger gatherings need one, submitted at least 48 business hours in advance. Lafayette Park caps demonstrations at 3,000 people; the White House sidewalk allows a maximum of 750. Signs on the sidewalk must be hand-held and made of cardboard, posterboard, or cloth, with wooden supports no thicker than three-quarters of an inch. Freestanding structures are not allowed on either site.22Federal Register. Special Regulations, Areas of the National Park System, National Capital Region, Special Events and Demonstrations