The benefits of keeping a guest room are numerous. Not only does it allow you the freedom of having friends and family come-and-go without the needed for extensive notice, the extra storage and breathing space they offer can be a much-needed addition to any fast-paced modern lifestyle. Sadly, over the last few decades, welcoming guests into your home has become less common and contemporary dwellings often lack the homely vibe of multi-generational living a guest room can facilitate. Plus, a guest room can increase the resale value of your house and, in the short term, it constitutes a blank canvas for experimenting with interior design and colour palettes which may not match with the rest of the home. Here are 21 luxury guest rooms which will inspire you to pick up the phone to the in-laws in no time!