The State House has experienced numerous expansions and renovations to meet the growing needs of the state since its original construction. Designed by Jonathan Doane, the original structure has seen architectural inputs from other notable architects across the centuries. The State House underwent a significant restoration and modernization project in 1987, and another renovation project that started in 2017, with a major focus on the governor's office and related Executive Branch agencies.
The New Jersey State House deviates from the architectural trend of most U.S. capitol buildings, which are reminiscent of the U.S. Capitol, and is integrated into an urban setting instead of a park-like campus. It offers daily tours to the public and provides an educational platform for middle and high school students.
History
After the legislature relocated to Trenton from Perth Amboy in 1790, it purchased 3.75 acres (0.0152km2) land for £250.[3] Construction on the new state house, designed by Philadelphia-based architect Jonathan Doane, began in 1792.[4] The Doane building was covered in stucco, measured 150 by 50 feet (46m ×15m) and housed the Senate and House chambers in opposite wings. To meet the demands of the growing state, the structure was expanded several times during the 19th century.
In 1845, Philadelphia architect John Notman created a three-stepped office wing on the north side of the original building facing West State Street. The new entrance was built with a two-story porch with fluted Doric columns. A large rotunda and stair hall connected the old and new wings under a spherical dome and cupola. Additionally, a two-story portico with Corinthian columns and classical pediment was added to the river-side facade. In 1865, the river-side portico was extended. In 1871, architect Samuel Sloan was commissioned to design new wings to house both legislative chambers flanking the extended portico.[3]
On March 21, 1885, a large fire destroyed the West State Street wing. In 1889, architect Lewis Broome of Jersey City led the reconstruction of the building in a simplified Second Empire style. He added the current rotunda and 145ft (44m) dome made of cast iron covered with copper and gold leaf, as well as limestone facing.[3] On the rotunda, the Latin phrase "Fiat justitia ruat caelum" is written which translates to ""Let justice be done though the heavens fall."[5] Broome went on to design the City Hall for Jersey City.[6]
In 1891, James Moylan, an architect and sitting assemblyman, led the replacement of the Assembly wing. He redesigned it in a late Victorian style, rotating the wing to be parallel to the building's center wing. There was also an addition to the west wing to add private offices for the governor and judges, as well as a third floor added to the south end of the center wing. In 1900, the wing was extended again.[3] In 1903, Merchantville architect Arnold Moses reconstructed the Senate wing in the American Renaissance style.[3] The New Jersey State House's original east wing was replaced with a four-story office section in 1906 and attained its current size in 1912 with extensions to the east and west wing. The only major change in the decades since has been modernization of the main corridor in 1950.[3]
Renovation work continued on the front portico into late 2024
A lengthy renovation and restoration project began in 1987. The project encompassed the legislative section of the building, an upgrade of mechanical and electrical systems, and the construction of the South Addition (office space). A parking garage, pedestrian tunnel, and other amenities were also constructed.[3]
From 1996 to 1999, the exterior of the State House dome was restored through the "Dimes for the Dome" program with money raised by New Jersey school kids. The dome is gilded with 48,000 pieces of gold leaf with each piece costing $1.00 at the time. As a thank you for their contribution, the dome was rededicated in honor of the children of New Jersey.[5]
In 2017, a $300M restoration of the entire building mainly focused on the governor's office and related Executive Branch agencies began[12][13] and was scheduled to finish in 2023.[3] The building was restored to how it looked in the early 1900s.[14] Drop ceilings were removed, revealing long-hidden skylights.[14] Modern sprinklers, fire alarms, heating, and air conditioning were installed, windows were replaced, and internal fire escape stairwells were added.[14]
The governor's office and other areas that were closed for renovation were officially re-opened at a dedication ceremony on May 1, 2023.[15]
In May 2025, the State House's Welcome Center was renamed in honor of longtime Senator and former Governor Richard Codey.[16]
Design
New Jersey Legislature
Senate
General Assembly
The New Jersey State House is unusual among state capitol buildings in the United States, the majority of which are reminiscent of the U.S. Capitol. The building consists of two parallel structures connected by the dome-capped rotunda, resembling the letter H, with its long arm parallel to State Street. A long portico wing, added by Notman and subsequently enlarged, extends west from the rotunda toward the Delaware River. To this portico, a number of architecturally dissimilar, unusually shaped structures have been added. These structures have been the subject of subsequent renovations to blend them with the original wing. The State House is set not on a park-like campus, as are many state houses, rather it is integrated into an urban setting along historic State Street and is surrounded by other legislative buildings. The most scenic view of the building is from the west, near the Delaware River, and is the side dominated by the various additions. Viewed from State Street, the dome is scarcely visible and there is little sense of the scale or design of the building. The governor's office occupies the remaining portion of the original 1792 State House.
Following the American Revolutionary War, the Congress of the Confederation met for two months in Trenton at the French Arms Tavern from November 1, 1784, to December 24, 1784. During this time, Congress appropriated $100,000 to acquire "suitable buildings" for national purposes in the city. In 1785 however, representatives from the southern states prevailed in defeating the Trenton proposal and the Compromise of 1790 secured the location along the Potomac River for Washington, D.C. as the nation's capital.
In 1790, the proposed national capital site along the Delaware River was chosen to be the location of the New Jersey state capital.
Tours are offered by reservation daily Monday through Friday, except state holidays. The tours typically include the Senate and Assembly chamber galleries, the rotunda, and governor's office reception room.[18]
1 2 Messler, Mary J. "Chapter IV: Some Notable Events of Post-Revolutionary Times"Archived February 2, 2017, at the Wayback Machine from A History of Trenton: 1679–1929, Trenton Historical Society. Accessed November 17, 2025. "The question now resolved itself into a quarrel between the North and the South. New England favored Trenton, whereas the Southern States felt that in the selection of any site north of Mason and Dixon's line their claims for recognition were being slighted, and their interests sacrificed to New England's commercialism."
↑ Hauck, Eldon (1991). American Capitols: An Encyclopedia of the State, National and Territorial Capital Edifices of the United States. Jefferson, NC: McFarland and Co. pp.150–1. ISBN0899505511.
↑ Princetoniana: Nassau Hall published on Princeton University's website and adapted from Leitch, Alexander. A Princeton Companion (Princeton, New Jersey: Princeton University Press, 1978). Website accessed November 16, 2025.
This page is based on this Wikipedia article Text is available under the CC BY-SA 4.0 license; additional terms may apply. Images, videos and audio are available under their respective licenses.
