Consolidated Edison Building

Consolidated Edison
Company type	Public utility
Industry	Energy
Predecessor	Consolidated Gas Company
Headquarters	New York City, United States
Area served	New York City and surrounding areas
Key people	George B. Cortelyou (president in 1911)
Products	Electricity and gas services
Number of employees	7,000 (circa 1929)

The Consolidated Edison Building—also referred to as the Consolidated Gas Building or 4 Irving Place—is a 26-story skyscraper designed in the neoclassical style, situated in Manhattan’s Gramercy district, New York City. Created by the architectural teams of Warren and Wetmore and Henry Janeway Hardenbergh, it occupies the western portion of the block bordered by 14th Street, Irving Place, 15th Street, and Third Avenue. This structure functions as the central headquarters for the energy corporation Consolidated Edison (Con Ed).

Previously, this location was home to Tammany Hall, the Academy of Music, and offices belonging to Consolidated Gas, the predecessor of Con Ed. Initially, Consolidated Gas was based at 15th Street and Irving Place but required more space by the 1910s. Hardenbergh designed an expansion constructed between 1911 and 1914, which was subsequently incorporated into a larger edifice built by Warren and Wetmore from 1926 to 1929. Upon its completion, local press lauded the building, particularly highlighting its "Tower of Light" as a prominent feature of the skyline. The building earned designation as a New York City landmark in 2009.

Site

Situated within Manhattan’s Gramercy neighborhood near Union Square, the Consolidated Edison Building occupies an entire rectangular block enclosed by Irving Place, 15th Street, Third Avenue, and 14th Street. The property spans roughly 93,778 square feet, with approximately 420 feet of frontage along both 14th and 15th Streets and about 206.5 feet along Irving Place and Third Avenue. While officially addressed as 4 Irving Place, it also extends across parcels numbered between 2 and 10 Irving Place. Surrounding landmarks include Zeckendorf Towers, Irving Plaza, the Daryl Roth Theatre, and Christ Church Lutheran.

Originally inhabited by the Lenape people until 1651, this land was granted to Peter Stuyvesant, director-general of New Netherland. The Stuyvesant family held much of the estate well into the eighteenth century; portions were sold to Cornelius Tiebout in 1748 and later transferred to Cornelius T. Williams. The current site comprises land once owned by Stuyvesant, Williams, and auctioneer David Dunham. The establishment of Manhattan’s street grid in 1811 laid out Union Square one block to the west and facilitated development of rowhouses along Irving Place east of the square.

Before construction of the Consolidated Edison Building, this block featured rowhouses on 15th Street, the Fifteenth Street Presbyterian Church, and New York University’s School of Medicine on 14th Street. In 1855, Manhattan Gas Light Company acquired land at the corner of 15th Street and Irving Place to erect a Renaissance Revival office building. Nearby stood New York’s third opera house—the Academy of Music—which opened in 1854 but was destroyed by fire in 1866 along with a blockfront on 14th Street. It was rebuilt and continued as an opera venue until 1887 before converting into a movie theater. Subsequently, Tammany Hall purchased the former medical school property for its headquarters while a mansion at 2 Irving Place became home to the Lotos Club.

History

During the 1880s, amid fierce rivalry among gas providers in New York City, Manhattan Gas Light Company merged with several other firms to create Consolidated Gas Company. By around 1910, its offices at 15th Street had become insufficient for its operations, leading to expansion into adjacent buildings such as the former Lotos Club residence.

Construction

At the end of 1911, Consolidated Gas engaged Henry Janeway Hardenbergh to create a 12-story office building on the designated site. The construction was divided into two stages to ensure ongoing business activities were not interrupted. The property spanned 84 feet along Irving Place and 155.6 feet on 15th Street. Work commenced in January 1911 with a 62-foot-wide structure located at 124–128 East 15th Street, which reached completion by September. By October, Consolidated Gas began transferring its offices to the new building, with President George B. Cortelyou moving in during December.

Initially, the original headquarters and the Lotos Club building remained in use but were quickly deemed inadequate. By December 1911, the company revised its plans to replace these structures with a new 19-story edifice featuring a penthouse. In June 1912, Consolidated Gas expanded its holdings eastward, eventually securing nearly 300 feet of frontage by November. Hardenbergh promptly submitted $1.5 million worth of plans for an extension.

The first 12-story building was not engineered to carry additional floors as originally anticipated. To resolve this, two 19-story wings were constructed on either side of the existing structure, with seven extra stories suspended from girders installed above the original building—the first girders being placed in August 1913. The finalized building cost $2.5 million and accommodated around 2,000 employees across five departments.

Following completion in 1914, Consolidated Gas leased out surplus office space to tenants such as Dahlstrom Metallic Door Company, which provided doors and trim for the premises. In 1915, a two-story brick-and-steel showroom measuring 22 by 84 feet was added at 144 East 15th Street.

Expansion

During the 1920s, as Consolidated Gas extended its reach into New York City's outer boroughs, additional office capacity became necessary. In August 1925, the company acquired the Academy of Music, which ceased operations in May 1926 to allow construction of a new facility. Warren and Wetmore—architects responsible for several branch offices—were commissioned for the project, while T.E. Murray, Inc. handled construction. Plans for a 26-story annex were filed in October 1926. A notable feature included a set of bells weighing 2.5 tons installed in the clock tower in December 1927, followed by the dedication of a large telephone switchboard in April 1928. The 20-story wing was completed by November of that year.

In December 1927, Consolidated Gas purchased the Tammany Hall building on 14th Street through the real estate syndicate D&D Company after Tammany planned to relocate to 44 Union Square East. The property was resold to Consolidated Gas in January 1928 amid accusations that Tammany leaders profited from the transaction—claims denied by George Washington Olvany. The $70,000 gain from the sale was ultimately returned to Tammany. The society remained at its old location until July 4, 1928, before temporarily moving to 2 Park Avenue.

Annex blueprints were submitted in September 1928, and two houses on Third Avenue were acquired in October to provide an additional exit route. After acquiring Brooklyn Edison Company in 1928, Consolidated Gas began relocating Edison personnel to its building starting in May 1929. The tower’s summit was illuminated for the first time on July 4, 1929, and the annex reached completion by November. Following these expansions, the building offered nearly one million square feet of space accommodating approximately 7,000 employees.

Subsequent Use

Various tenants occupied the ground floor over time, including First National City Bank (currently known as Citibank), which established a branch there in 1928. By 1932, Consolidated Gas had gained recognition as the world's largest company supplying electrical services. After its incorporation as the Consolidated Edison Company of New York in 1936, the headquarters adopted this new name. The facade facing 15th Street was redesigned in 1954, with continual maintenance and renovations carried out in the following years.

During 1965–1966, the building's exterior was repainted using roughly of acrylic emulsion paint. By the decade of the 1970s, approximately 6,000 staff members worked at the headquarters. While expanding operations into adjacent states, Con Edison retained its base at Gramercy Park. In both 1975 and 1978, minor bomb incidents attributed to a Puerto Rican nationalist faction caused limited structural harm but no casualties. Additionally, the building served as the site for the Con Edison Energy Museum toward the latter part of the 20th century.

In 1994, the light bulbs illuminating the tower’s clock were replaced. Between 1997 and 2001, further restoration efforts addressed both the tower and facade, followed by lighting enhancements in 2008. The building was officially designated a city landmark by the New York City Landmarks Preservation Commission in 2010. At that time, tenants included New York Sports Club, Apple Bank for Savings, and a Raymour & Flanigan furniture outlet.

Architecture

The structure rises to a roof height of , with its lantern reaching an overall height of . The architects employed a limestone exterior featuring corners finished with simulated quoining and courses of stone arranged as projecting blocks. Since the expansions in the 1920s, few alterations have been made to this facade.

Hardenbergh Design

Among Hardenbergh's final architectural commissions was this original concept: a twelve-story limestone edifice with retail spaces occupying the first three floors. These lower levels were distinguished by double-height segmental arches spanning the ground and second floors. The central seven floors contained recessed windows set within vertical bays, each bay comprising three windows per story. The uppermost two floors displayed windows recessed between Ionic colonettes accompanied by ornate spandrels.

Initially, the main entrance was intended to be on 15th Street, framed by marble arches and illuminated backlit panels; however, this was later relocated to Irving Place in an expanded layout featuring a recessed portico supported by Ionic columns. The secondary entrance moved to 15th Street and adopted simpler detailing. The original twelve stories largely remained unchanged; a transitional thirteenth floor incorporated modest cornices, while floors fourteen through seventeen included piers upheld by Ionic pilasters and culminated with a projecting cornice on floor eighteen. The architectural composition combined Beaux-Arts elements at the base, Baroque influences midsectionally, and Renaissance Revival alongside neoclassical ornamentation near the top.

Lighting was a fundamental aspect of Hardenbergh’s vision for the facade: fixtures were suspended beneath cornices and along rooflines to illuminate storefronts as well. Limestone was selected for its reflective properties to enhance visibility during nighttime hours. This approach to exterior lighting was regarded as an innovative decorative technique within New York City at that time. Although illumination had been previously employed at entertainment venues such as Coney Island's Luna Park and during significant events like the 1909 Hudson Fulton Celebration, it remained uncommon for commercial office buildings. This lighting arrangement was discontinued during the 1920s following construction of the Warren and Wetmore-designed tower.

Warren and Wetmore design

The 26-story edifice located at Irving Place and 14th Street was conceived with a design approach akin to the Metropolitan Life Insurance Company Tower situated at Madison Avenue and 23rd Street. Flanking the central tower were two 18-story wings that reflected Hardenbergh's architectural influence, featuring ornamentation reminiscent of his work but executed with less intricacy. The building's base included a three-story colonnade supported by Doric columns. Decorative elements inspired by light—such as urns, torches, lamps, thunderbolts, and suns—symbolized Con Ed’s identity as a provider of power and illumination.

The structure ascended with setbacks in accordance with the 1916 Zoning Resolution. Its summit was adorned with urns and obelisks modeled on the Mausoleum at Halicarnassus, serving as a tribute to Con Ed employees who lost their lives during World War I. Crowning the tower was a "Tower of Light," designed to resemble a small temple, featuring a recessed loggia illuminated by columns beneath the apex. Each side of the tower displayed a clock face measuring 16 feet in diameter.

A bell system chimed every fifteen minutes, synchronized with a clock in Washington, D.C. At a height of 400 feet, these bells ranked as the second highest worldwide when installed, surpassed only by those on the Metropolitan Life Insurance Company Tower. The pinnacle was capped with an 8-foot bronze lantern that glowed after dark.

The lighting concept, first launched in 1929, was innovative for employing colored electric lights instead of conventional plain gas illumination. Light beams radiated outward in all directions, cycling through 21 colors every three minutes, which contributed significantly to the tower’s iconic status.

Features

Completed in 1914, the original Consolidated Gas Building included a spacious auditorium and a restaurant located on the nineteenth floor. By 1928, Consolidated Gas operated what was reputed to be the world’s largest privately owned telephone switchboard, featuring 60,000 jacks managed by a team of 75 operators. The building also contained a private library for Con Edison established on-site since 1906; by the 1980s, this collection comprised approximately 35,000 volumes and 380 periodicals.

The western and eastern wings along 15th Street were constructed as 19-story buildings; however, the central section initially rose only twelve stories and was not structurally capable of supporting an additional seven floors. Therefore, floors thirteen through nineteen are suspended above this central portion using trusses. Above the nineteenth floor of the center section lie eight girders weighing each, anchored to steel frames two stories tall on the adjacent western and eastern wings. Each frame consists of eight columns extending from the foundation upward, effectively creating a seven-story structure hanging approximately 200 feet above street level.

Critical reception

In 1983, Robert A. M. Stern observed that Hardenbergh’s stylistic influence within the original building—also evident in his design for the Plaza Hotel—demonstrated a "masterful blend of gemuetlichkeit and Classical discipline."

The addition completed in 1929 garnered widespread praise. The New Yorker lauded its seamless integration between neighboring buildings, describing it as "a robust shaft, classic in detailing and bold in silhouette," noting its effective setbacks despite a slightly misaligned cornice. The Architect magazine commended its design and ornamentation for imparting "unusual merit and distinction" to the structure, while W. Parker Chase in 1933 referred to it as one of New York City's most "beautiful and magnificent edifices." The lighting system received particular acclaim; the 1939 WPA Guide to New York City termed it a "welcome landmark," and in 1981, The New York Times identified the Tower of Light as one of Manhattan’s most striking "crowns of light."

References

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External links

Consolidated Edison Building at the CTBUH
Consolidated Edison Building via Emporis
Consolidated Edison Building on Skyscraperpage.com
Consolidated Edison Building listed on Structurae