Home additions can increase the value of your home, as well as give you all the space you’ve ever wanted. The possibilities for home additions are limitless; you can even add an entire new floor if you wish. A few common home additions include: garages, sun rooms, kitchens with dining rooms, bedroom with a bathroom. It is typically cheaper to build an addition than to buy a new home that equals the space of your existing house plus addition. At the very least, the closing costs involved with selling your old house and buying the new house would push this option over the top.The greatest advantage : Addition is 100% your creation. One part to remember : choose your contractor wisely - you will be dealing with him 5-6 days a week. It is like building a house but you are living right next to it and all the noise, dust and commotion construction process creates.