Any commercial subcontractor Seattle will tell you that there is a low-hanging fruit in the Seattle construction market called ADUs and DADUs. The construction and permit process is much simpler than an altogether new project. This is mostly because the main structure is available and all you have to do as a commercial construction subcontractor Seattle is manage the process for your clients. The profit is there to be made but we dive into a topic seldom taught in design school. This deals with maximizing profit through small changes as a commercial building services Washington. However, we need to get some of the basics right before we fall into the details of the money-saving / making process. DADU vs. ADU One major advantage of a DADU is that it is a separate living space and can be used for parents growing teenagers or college-returning kids. It can also be rented out making it a money-making option. These are also great office spaces and workspaces since they offer privacy from the main house. However, making a separate structure requires considerable investment and structural changes. In the case of an ADU , an existing space can be simply renovated to make it workable. Budget and current structure can be a big factor in going for an ADU rather than a DADU.' DADU benefits: - Increased living space for family members and/or home office. - Potential for additional income through long/short-term rentals. - Enhanced property value.  ADU benefits - Potentially higher Return on Investment compared to DADUs for resale. - Opportunity to upgrade home's electrical, windows, insulation, heating, and plumbing, resulting in improved energy efficiency. - Potentially more flexibility compared to size-restricted DADUs. - Suitable option if the home does not meet the city's requirements for DADU, such as lot size or setbacks.