The City of Los Angeles encourages the construction of these accessory units, and the permitting and construction process is a breeze if you have the right building partner. Here is a list of the Top Reasons A Homeowner Would Build an ADU In Los Angeles. Increase Your Property Value , Housing For Aging In Place, Guest House, Recent Graduates Returning Home and Long Term or Short Term Rental Income. So, as you can see there are many reasons why homeowners are building ADUs in their backyards. Your reason will be as unique as your property and we are here to help determine how the ADU laws can be best used to unlock the potential in your property. Vist, Working Class American Construction to buy service in San Fernando valley Los Angeles CA.