One One Bar in Tempe offers a vibrant, elevated nightlife experience with an atmosphere that blends energetic party vibes and stylish rooftop elegance. Perched above Mill Avenue, the bar features sweeping panoramic views of downtown Tempe, giving it a distinctive open-air appeal. Its design combines modern sophistication with comfortable lounge seating, sleek metal and glass accents, and bold LED lighting that enhances the evening energy. A spacious dance floor, elevated DJ booth, and ambient lighting create an immersive party environment, while cozy seating areas allow guests to relax and socialize. Whether buzzing with music and dancing or enjoying a quiet evening under the stars, One One Bar delivers a unique rooftop atmosphere that’s both lively and memorable.