Free version for home use Very easy to learn No built-in rendering Not a collaborative tool Originally a Google-backed project, Sketchup is now owned and developed by Trimble, who release a new version at least once a year. After a few easy to follow tutorials, designers should be able to work rapidly to construct complex solid geometry using it. The free release has made Sketchup very popular, generating a large and active community of Sketchup users on hand to help the inexperienced. The user-base has also contributed to an extensive object library, a vast resource of pre-constructed parts to drop into any project. It might not be suitable for designing a building entirely, but it is an excellent tool for rapidly prototyping a design when it is still at a conceptual stage. Sketchup offers a free tier, although it has limited features. You can download Sketchup here Other architecture software options to consider While we've featured some of the most powerful and popular AutoCAD and 3D design software programs in this roundup, especially for use in designing buildings and other architectural interests, there are plenty of alternative options to consider. Some of these are worth looking at because they better serve as an introduction for beginners, while others are notable for being free while retaining useful features. Even so, it may be a good piece of software to try in order to simply get used to basic functions, though be warned that there are no command line options here which more advanced programs tends to offer.