The complex features 3 office towers, a hotel, an open-air retail plaza, and a 1200-car parking garage.

It remains to be seen if this will have an impact in increasing tenancy at City Square, though it will serve to connect the area to Downtown Phoenix.

Besides having a fitness center, there are also cafes, a day care, a barber shop, law offices, accounting firms, engineering consultants, etc.

The Webb Corporation planned the complex as a "dramatic, high quality, self-contained complex of buildings around a landscaped plaza that, in time, will mean to this area (downtown Phoenix) what New York's Rockefeller Center or Philadelphia's Penn Center means to the East."

The redesign was designed by Cornoyer-Hendrick Architects and Planners, Inc. and the renovation was completed by Kitchell Contractors, Inc.[2] The past couple decades have seen a lot of activity around the City Square development.

[3] At the time the Phoenix metropolitan area was experiencing drastic increases in commercial tenancy rates.

Parallel Capital Partners maintains properties in San Diego, Phoenix, Los Angeles, Orange County, Dallas, Denver, and Honolulu.

[5] In 2007, a news release noted that the Arizona DES had extended their lease and increased office space to nearly 140,000 square feet.

The basic construction loan was furnished by Massachusetts Mutual Life Insurance Company and Coldwell Banker was the building leasing agent.

On the ground floor was a branch of the First National Bank of Arizona, a Rosenzweig jewelry store and other business firms.

The office structure is rectangular, with all utility rooms, elevators and stairs built around a central core.

The exterior originally used precast stone and mosaic tile panels and trim of gold anodized aluminum.

The 3800 tower was radically redesigned in 1987, with the stone and mosaic tiles panels and aluminum trim removed and replaced with a new marble and blue glass exterior.

The front spray fountain was removed in favor of a grand new entrance with additional retail shops and a prominent clock tower.

The original appearance of the structure was identical to the Bank of the West Tower in Albuquerque, New Mexico also built by Webb.

When built, the guestrooms featured individual guest controlled air conditioning and heating, and telephones equipped with message-reminder service, and balconies overlooking the swimming pool in cabana wing rooms.

Hotel management changed for a final time in 2003, and the property was renamed the Hilton Garden Inn.

Businesses inside 4000 Tower include Arizona Drug Screening & Investigations, First Community Financial Corporation, and Parsons & Goltry Law Firm.

In 1968 a new three story structure was constructed directly north of the Continental Bank building for Pepsi-Cola as their Management Institute.