<P> 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 feet ( 122 m ) . The tallest structure in the city is the Stratosphere Tower , which rises 1,149 feet ( 350 m ) just north of the Las Vegas Strip . The tower is also the tallest observation tower in the United States . Since the Stratosphere Tower is not fully habitable , however , it is not considered a building . The tallest building in Las Vegas is The Drew Las Vegas , which rises 735 feet ( 224 m ) and was topped out in November 2008 . This building , however , is currently on hold . The tallest completed building in the city is the 52 - story Palazzo , which rises 642 feet ( 196 m ) and was completed in 2007 . </P>
how tall is the tallest building in las vegas
The Drew Las Vegas