The short answer to this is yes. However, the Decentraland team plans to build a much more user friendly version of the current SDK builder in the future.
More info on this here: https://dclplazas.com/ways-to-build-in-decentraland-are-simplifying/
DCL Plazas has also collated a library of building resources for those who are more adventurous and looking to learn new skills.
More info on this here: https://dclplazas.com/build-on-decentraland/Follow DCL Plazas...