Before contracting for an ADU in Seattle, it is important to know the different kinds of permits and the processes involved. Since it is usually a legal battle, it becomes a struggle costing you money, time, and reputation in the market. You must also fully understand what constitutes an ADU and its differences from a DADU. Many instances in the past have involved the wrong permit process initiation because of how the state defines an ADU and how your client does it. Let us dive into some of the steps you must take as a commercial construction subcontractor Seattle to ensure that your legal aspect is as good as your construction practice. ADU vs DADU Zoning Laws Seattle/s zoning laws allow the construction of ADU and DADU on most single-family homes. Generically, the difference is between the square footage and setback rules. As a general code, the commercial project management Seattle should additionally check for Lot zones and overlays like environment, public buildings and critical zones, etc. Proper Assessment Pre-planned site assessment is a special art that leads to better end results for any construction management subcontractor. It goes the same for any construction project but specially for an ADU since this is constructed in an already built property . The zone and code violations usually come into play at the end of the project and therefore extreme care should be exercised at the very start. Some of the important aspects to be checked are local zoning laws, lot size, slope, utility access and setbacks. Encourage clients to get a Pre-Application Site Visit (PASV) from the Seattle Department of Construction & Inspections (SDCI) if the site has complexity. 

In today’s fast-paced construction environment, commercial buildings are no longer just boxes built for function—they’re thoughtfully designed spaces that reflect brand identity, sustainability goals, and future adaptability. As a result, modern commercial architecture has evolved dramatically, and so has the way buildings are framed. At the heart of this evolution is metal framing, a construction method that supports design flexibility, structural integrity, and long-term efficiency. From sleek office towers to expansive retail centers, commercial metal framing has become a cornerstone of commercial building design. In this article, we’ll explore the many ways metal framing enhances modern commercial architecture and why it continues to be the preferred choice for architects, engineers, and contractors alike.