Is Venus inhabitable

Not under the existing environmental conditions.

The planet Venus has many of the elements found on Earth, but conditions there are not hospitable to human life. It is too hot (average 464 °C or 867°F) and the carbon dioxide atmosphere has a crushing pressure nearly 100 times that at sea level on Earth (92 bar). Under these conditions, there is also no liquid water on the planet's surface, and the only "rain" (high up in the atmosphere) consists of sulfuric acid!

Floating Cities

Several novel proposals have suggested establishing aerial colonies 50 kilometers above the surface, where the temperature and pressure are closer to Earth's.

(see related link below)