Title: List of tallest buildings in Las Vegas
Content:   The city of Las Vegas, Nevada and its surrounding unincorporated communities in the Las Vegas Valley are the sites of more than 160 high-rises, 42 of which stand taller than 400 ft. The tallest structure in the city is the Strat tower, which rises 1149 ft just north of the Las Vegas Strip. The tower is also the tallest observation tower in the United States. Since the Strat tower is not fully habitable, however, it is not considered a building. The tallest building in Las Vegas is the Fontainebleau Las Vegas, which rises 735 ft and was topped out in November 2008. This building, however, remained unfinished for several years due to the late-2000s recession. The tallest completed building in the city is the 
Title: List of tallest buildings in Las Vegas
Content:  This list ranks completed and topped out skyscrapers in Las Vegas that stand at least 400 feet (122 m) tall, based on standard height measurement. This includes spires and architectural details, but does not include antenna masts. An equal sign (=) following a rank indicates the same height between two or more buildings. The "Year" column indicates the year in which a building was completed. Freestanding observation towers, while not habitable buildings, are included for comparison purposes, but not ranked. Many Las Vegas skyscrapers are located on the Las Vegas Strip, the majority of which is located outside the Las Vegas city limits. This list includes all skyscrapers which are included within the city limits of Las Vegas and the surrounding communities which use Las Vegas as an official address. The United States Postal Service uses "Las Vegas, NV" as the official mailing address for the unincorporated places of Paradise, Winchester, and Spring Valley, and as such the distinction between the city and the surrounding communities is often not apparent.
Title: List of tallest buildings in Las Vegas
Content:  skyscrapers that are proposed, approved or under construction in the city that are planned to rise over 400 ft in height. The tallest building approved for the city is the World Jewelry Center, which is planned for construction in Downtown Las Vegas. The 815 ft tower is part of a proposal to construct a hub for the world's jewelry industry, across from World Market Center Las Vegas. The tallest building under construction in Las Vegas is the Fontainebleau Las Vegas, which has also been the tallest building in the city since its topping out in November 2008; construction on the building was suspended in mid-2009. Following numerous delays, the project is now scheduled to open in late 2023 as the original name, Fontainebleau.
Title: List of tallest buildings in Las Vegas
Content:  Palazzo, which rises 642 ft and was completed in 2007. Beginning with the completion of the Diamond of the Dunes Tower in 1961, high-rise hotels began to become more concentrated on the Las Vegas Strip. The first high-rise hotel and casino resort to rise higher than 492 ft was the 529 ft New York-New York Hotel & Casino, completed in 1997. Las Vegas entered into a skyscraper-building boom in the late 1990s that has continued to the present; of the city's 40 tallest skyscrapers, 39 were completed after 1997. As of 2012, the skyline of Las Vegas is ranked 66th in the world and 18th in the United States with 176 completed high-rises. In what is being dubbed a "Manhattanization wave", there are over 
Title: List of tallest buildings in Nevada
Content:  This list of tallest buildings in Nevada ranks buildings in the state of Nevada by tallest height. This list, which includes buildings with a minimum height of 250 ft, features the 57 tallest buildings in the state, starting at 260 feet. The tallest structure in the state is the Stratosphere Tower in Las Vegas, with a height of 1149 ft. The tower, located north of the Las Vegas Strip, is also the tallest observation tower in the United States. Because the Stratosphere Tower is not fully habitable, it is not considered a building. The tallest building in the state is the unfinished Fontainebleau Resort Las Vegas, with a height of 735 ft; the building was topped out in November 2008, but was put on hold the following year. Nevada's tallest completed building is the 52-story Palazzo, which stands at 642 ft and was completed in 2007. Outside of Las Vegas, the tallest building is the 38-floor Silver Legacy Resort & Casino, located in Reno and completed in 1995, with a height of 410 ft.
Title: List of tallest buildings in Las Vegas
Content:  There are currently three buildings under construction in the Las Vegas Valley that are planned to rise at least 100 meters (328 ft).
Title: List of tallest buildings in Las Vegas
Content:  This lists buildings that are approved or proposed in the Las Vegas Valley and are planned to rise at least 100 meters (328 ft).
Title: List of tallest buildings in Nevada
Content:  From 1927 to 1956, most of the state's tallest buildings were located in Reno. Since 1956, the state's tallest buildings have been located in the Las Vegas Valley, beginning with the opening of the Fremont Hotel and Casino in Las Vegas. The Stratosphere Tower, completed in 1996, is excluded from this timeline.
Title: List of tallest buildings in Las Vegas
Content: A. ^ According to the Council on Tall Buildings and Urban Habitat, freestanding observation towers are not considered to be buildings, as they are not fully habitable structures. These structures are included for comparative purposes. 
Title: List of tallest buildings in Las Vegas
Content:  This lists buildings that once held the title of tallest building in Las Vegas as well as the current titleholder, Fontainebleau Las Vegas. The Strat observation tower has been the tallest free-standing structure in the city since its 1996 completion, but since it is not a fully habitable building it is not included in this list.

Question: how tall is the tallest building in las vegas?
Answer: The Drew Las Vegas.
1,149 feet.