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Location: 200 E Bay St, Charleston, SC 29401

In mid-nineteenth century Charleston, South Carolina, the U.S. Custom Service had outgrown its offices in the 1771 Exchange Building on East Bay Street. Responding to increased trade activity in the Atlantic port city, Congress appropriated funds in 1847 for the purchase of a site for a new custom house. The waterfront site on the Cooper River, purchased for $130,000 in 1849, was then known as Fitzsimmon’s Wharf.
In early 1850, private architects were invited to compete for the commission to design the building. Ultimately, none of the entries was chosen as submitted, and Supervising Architect of the Treasury Ammi B. Young incorporated elements from four competition drawings into one cohesive design.
Construction began in 1853, with workers finding the remains of a Colonial-era fortification, Craven’s Bastion, while digging the foundation. Due to the marshy location, a grillage of timber was constructed to support the weight of the building. By 1859, the walls and columns had been constructed, but Congress, concerned about escalating costs and the possibility of South Carolina secession, did not appropriate funds needed to complete construction.
The onset of the Civil War brought construction efforts to an indefinite close, and the building sustained considerable damage when it was struck by shells during the bombardment of Charleston. In 1870, work resumed under revised plans that eliminated the original design’s domed cupola and side porticos. The building was completed and occupied nine years later at the total cost of $2.8 million. In 1893, a stone wharf was constructed at the east front of the building.
The building served Charleston into the next century, but in 1956, plans to raze it were announced. Due to widespread support for its preservation, however, the government allocated funds for restoration in the 1960s.
In 1960, the building was included in the designation of the Charleston Historic District, which was in the first group of districts recognized as National Historic Landmarks in the United States. The U.S. Custom House was individually listed in the National Register of Historic Places in 1974.
Located in the Charleston Historic District, the U.S. Custom House sits on a site bounded by East Bay, Market, Concord, and Cumberland streets. The building has a cross plan with two facades: the first faces downtown on the west, and the second faces the Charleston Harbor to its east.
Architect Ammi B. Young incorporated Greek and Roman elements into his Classical design. The three story building sits on a podium, and the east and west facades have temple fronts. The basement story is rusticated granite, and broad steps lead to the main entries on the first floor. The bronze doors have molded limestone surrounds and are topped by triangular pediments supported by acanthus leaf consoles. Windows have a similar treatment, with the acanthus leaf consoles supporting both pediments and sills.
Two-story, limestone Corinthian columns support colossal pedimented porticos on the east and west facades. Aligned with the portico columns, Corinthian pilasters separate the bays on both facades, and engaged fluted columns continue around the building. Above the columns, a full entablature has a molded architrave, wide frieze, and dentiled cornice. The frieze is unadorned except on the west facade, where “United States Custom House” was carved in 1964. A balustrade and low pitched roof top the building.
Lobbies at the east and west entries to the building have floors covered with fossiliferous black and white marble tiles laid in a diamond pattern. In the west lobby, a cast-iron stair with decorative railing leads to the second floor. On the second floor, a narrow circular staircase leads to the attic.
The building’s interior revolves around the two-story cortile, which early records reference as the Business Room. Originally intended to be a rotunda with a sky-lit dome, the cortile is square and spans approximately fifty feet in both directions. Similar to the lobby, black and white marble tiles cover the floor. Fourteen cast-iron Corinthian columns border the space and support an ornate cast-iron balcony. Fluted Corinthian pilasters decorate the second floor walls. A coved, stenciled ceiling with eight artificially lit skylights tops the cortile. Painted red, white, blue, and gold, the ceiling is divided into rectangles adorned with patriotic symbols, including American flags and shields, and classical motifs.
Most offices open onto the cortile. Some offices contain original marble fireplaces with classical carvings including columns and rosettes. Interior doors retain white marble surrounds and some have original embossed door knobs and hinges featuring Treasury Department and Customs Service symbols.
The exterior has changed little since the building was constructed, though the interior has been modernized. In 1906, a modern heating system replaced the original stoves and coal grates, and in 1910, plumbing and electric lighting systems were installed.
After the building was saved from potential demolition, the cortile ceiling was restored in 1968. The second-floor courtroom was restored during the 1990s. Between 2000 and 2011, projects included door and plaster restoration, window refinishing, security and elevator upgrades, and repainting public spaces using original color palettes.

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Rates for Alaska, Hawaii, and U.S. territories and possessions are set by the Department of Defense.
Rates for foreign countries are set by the Department of State.
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An SBA program that helps provide a level playing field for small businesses owned by socially and economically disadvantaged people or entities that meet eligibility requirements.
A multiple-award IDIQ governmentwide acquisition contract offering complete and flexible IT solutions worldwide. A best-in-class GWAC and preferred governmentwide solution, Alliant 2 offers:
It provides best-value IT solutions to federal agencies, while strengthening chances in federal contracting for small businesses through subcontracting.
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A simplified method of filling anticipated repetitive needs for supplies or services by establishing "charge accounts" with qualified sources of supply (see subpart 16.7 for additional coverage of agreements). See 13.303-1 at acquisition.gov for more info.
Types of funds to use on specific expenses.
The work done to make a structure or system ready for use or to bring a construction or development project to a completed state.
A GSA SmartPay card that is a centrally billed account. The agency is invoiced for purchases and the federal government pays contractor banks directly. Examples include purchase, fleet, and some travel cards or accounts. See more on how to recognize card types.
Negotiated firm-fixed pricing on airline seats for official government travel. The locked-in ticket prices for the fiscal year save federal agencies time and money. Federal employees enjoy flexibility to change their plans without incurring penalties or additional costs. All negotiated rates have:
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A space where individuals work independently or co-work collaboratively in a shared office. The work environment is similar to a typical office, usually inclusive of office equipment and amenities. Typical features of co-working facilities include work spaces, wireless internet, communal printer/copier/fax, shared kitchens, restrooms and open seating areas. May also be referred to as a “shared office.”
Any item of supply (including construction material) that is sold in substantial quantities in the commercial marketplace, offered to the government in the same form in which it is sold in the commercial marketplace, and does not include bulk cargo, as defined in 46 U.S.C. 40102(4), such as agricultural products and petroleum products. See FAR 2.101 at Acquisition.gov for more.
From 5 USC 5701(6), "continental United States" means the several states and the District of Columbia, but does not include Alaska or Hawaii.
An employee who negotiates and awards contracts with vendors and who has the sole authority to change, alter or modify a contract.
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An SBA program that gives preferential consideration for certain government contracts to businesses that meet the eligibility requirements.
The primary regulation for federal agencies to use when buying supplies and services with funds from Congress.
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The travel and relocation policy for all federal civilian employees and others authorized to travel at government expense.
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A Department of Homeland Security program that allows members to use expedited lanes at U.S. airports and when crossing international borders by air, land and sea.
A charge card for certain U.S. Government employees to use when buying mission-related supplies or services using simplified acquisition procedures, when applicable, and when the total cost does not exceed micro-purchase thresholds.
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An online shopping and ordering system at gsaadvantage.gov that provides access for federal government employees and in some cases, state and local entities, to purchase from thousands of contractors offering millions of supplies and services.
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A type of contract when the quantity of supplies or services, above a specified minimum, the government will require is not known. IDIQs help streamline the contract process and speed service delivery.
A fee paid by businesses who are awarded contracts under Multiple Award Schedule to cover our cost of operating the program. The fee is currently 0.75% of reported sales under MAS contracts unless otherwise stated in the solicitation. Contractors under the Transactional Data Reporting program have the option to pay the IFF on a monthly basis, but all contractors are required to pay the IFF within 30 calendar days following the completion of each quarter.
An investment in our nation’s infrastructure and competitiveness. The law provides funding for LPOE modernization projects that will create new good-paying jobs, bolster safety and security, and make our economy more resilient to supply chain challenges.
A written agreement entered into between two federal agencies, or major organizational units within an agency, which specifies the goods to be furnished or tasks to be accomplished by one agency (the servicing agency) in support of the other (the requesting agency).
A facility, also known as a border station, that provides controlled entry into or departure from the United States for persons or materials. It houses the U.S. Customs and Border Protection and other federal inspection agencies responsible for the enforcement of federal laws related to entering into or departing from the U.S.
An employee who is responsible for preparing, negotiating, awarding and monitoring compliance of lease agreements.
Criteria used to select the technically acceptable proposal with the lowest evaluated price. Solicitations must specify that award will be made on the basis of the lowest evaluated price of proposals meeting or exceeding the acceptability standards for non-cost factors.
The rate of reimbursement for driving a privately owned vehicle when your agency authorizes it. Current rates are at gsa.gov/mileage.
Long-term governmentwide contracts with commercial firms providing federal, state, and local government buyers access to millions of commercial products and services at volume discount pricing. Also called Schedules or Federal Supply Schedules.
The standard federal agencies use to classify business establishments for the purpose of collecting, analyzing, and publishing statistical data related to the U.S. business economy.
A family of six separate governmentwide multiple award, IDIQ contracts for management and advisory, facilities, technical and engineering, logistics, intelligence services, research and development, environmental, and enterprise solutions.
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An identification card that allows credentialed government personnel to access facilities, computers, or information systems. May also be referred to as HSPD-12 card, LincPass, smart card, or CAC.
Furniture and equipment such as appliances, wall hangings, technological devices, and the relocation expenses for such property.
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You should only drive a privately owned vehicle for official travel after your agency evaluates the use of:
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A document used in negotiated procurements to communicate government requirements to prospective contractors (firms holding Multiple Award Schedule contracts) and to solicit proposals (offers) from them.
A document used to communicate government requirements, but which do not solicit binding offers. Quotations submitted in response are not offers. The Multiple Award Schedule order is the offer, and then the contractor can do something to show acceptance, like ordering supplies or contacting subcontractors.
A Small Business Administration program that gives preferential consideration for certain government contracts to businesses that meet the eligibility requirements.
A Small Business Administration program that gives preferential consideration for certain government contracts to business that meet the eligibility requirements.
To improve and stimulate small business utilization, we award contracts to businesses that are owned and controlled by socially and economically disadvantaged individuals. We have contracting assistance for:
A Small Business Administration program that gives preferential consideration for certain government contracts to business that meet the eligibility requirements.
The basis for the lease negotiation process, which becomes part of the lease. SFOs include the information necessary to enable prospective offerors to prepare proposals. See SFO minimum requirements.
Specific supply and service subcategories within our Multiple Award Schedule. For the IT Category, a SIN might be new equipment or cloud services.
An online system at sam.gov, which the U.S. Government uses to consolidate acquisition and award systems for use by contractors wishing to do business with the federal government. Formerly known as FBO.gov, all contracting opportunities valued over $25,000 are posted at sam.gov.
When you use a government purchase card, such as the "GSA SmartPay" travel card for business travel, your lodging and rental car costs may be exempt from state sales tax. Individually billed account travel cards are not tax exempt in all states. Search for exemption status, forms and important information.
The finishes and fixtures federal agency tenants select that take a space from a shell condition to a finished, usable condition and compliant with all applicable building codes and standards.
A statute that applies to all Multiple Award Schedule contracts, unless otherwise stated in the solicitation or contract, which requires contractors to sell to the U.S. Government only products that are manufactured or “substantially transformed” in the U.S. or a TAA-designated country.
Vendors report transactional data — information generated when the government purchases goods or services from a vendor — to help us make federal government buying more effective.
See our TDR page for which SINs are eligible and which line-item data to submit.
A unique number required to do business with the federal government.
An indicator of how efficiently a federal agency is currently using space, it is traditionally calculated by dividing the usable square feet of the space, by the number of personnel who occupy the space.
A Small Business Administration program that gives preferential consideration for certain government contracts to business that meet the eligibility requirements.
A governmentwide acquisition contract exclusively for service-disabled veteran-owned small businesses to sell IT services. Get more information about VETS 2.
An SBA program that helps provide a level playing field for small businesses owned by women that meet eligibility requirements.