From Site Prep to Siding: How to Plan an Efficient DADU Construction Project

Viktor Zherdiev • August 1, 2025

With construction-friendly laws aimed towards helping people build DADUs in already built homes or properties, the demand for a good commercial subcontractor Seattle has skyrocketed. This is when even GCs are looking for an efficient commercial construction subcontractor Seattle to hand over their usual projects. However, not any construction management subcontractor can just come in and get a DADU done. Without research and experience, a construction management subcontractor might remain stuck in the permit process altogether. Therefore, we at United Seattle have come up with a blueprint that any homeowner, commercial construction subcontractor Seattle or GC in Seattle should follow to get a DADU done right the first time and without unnecessary delays.

Site Evaluation (2-3 weeks)

This is the first and most important step where every wrong call has implications throughout the project for a commercial subcontractor Seattle. Checking out local laws, codes, permit processes, utility access, geography, current building restrictions and design flaws all fall into this category. The more detailed a site evaluation is, the easier it gets for a construction subcontracting services Seattle in the long run.

The Permit Process (6-10 weeks)

This is where most of the time is spent due to inexperience and a lack of understanding of the local laws. The key to solving this slow-moving mystery is detailed knowledge of the system and a checklist that has everything that needs to be done or submitted. Now this is a lengthy process so some of the tasks coming later in the project are aligned by a smart commercial subcontractor Seattle to save this null period time. Efficient construction management subcontractors use this permitting window to prep, not pause.

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Site Prep (1-2 weeks)

This might be one of the smallest phases in the DADU construction project. However, an inexperienced commercial subcontractor Seattle can stretch this to a time where the project seems impossible. Excavation needs equipment and the right equipment for the right job is to be planned earlier at the site inspection phase. Furthermore, the current construction and neighborhood need to be catered for by the building subcontractor Washington before the first trench is dug. Working with construction management subcontractors who understand trenchless methods and local soil conditions can eliminate major headaches.

Foundation: The First Important Concrete Step (1 week)

There are a number of pre-made or site-developed options for laying the foundation. However, it mostly depends on the site and the kind of overhead construction involved. A smart commercial subcontractor Seattle will keep the GC / client in the loop from the design phase, explaining the reason for every choice. This hugely avoids any disputes in the future where the groundwork is done but now requires changes because a specific type of foundation was not informed about!

The Framing (2-3 weeks)

This is where all the fun work starts and the client sees the structure standing up finally. Smart construction subcontracting services Seattle aim for tandem working of teams so that there is no lag period in between. The same goes for delivery of materials, which should reach just before they are needed rather than earlier or later which has its own cost-bearing consequences. Framing for a typical 500–800 sq ft DADU takes 2 to 3 weeks, and staying on schedule requires material staging and clear communication with crews.

The Dry Envelope (203 weeks)

With Seattle's unpredictable weather a solid weatherproof envelope is a must. Therefore, the materials for windows, doors, roof and siding must all be selected keeping the weather in mind. This is where a local like United Seattle beats the competition as they have the knowledge and latest patent AeroBarrier technology for keeping your home insulated and reducing the living cost as well.

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How You Can Save on Energy Bills with Insulated Siding

By Victor K • August 7, 2025

Your home’s siding does more than just boost curb appeal—it’s also one of the first lines of defense against the elements. While standard siding offers some level of protection and insulation, insulated siding takes energy efficiency to a whole new level. If you’re tired of skyrocketing heating and cooling bills or dealing with uncomfortable indoor temperatures, upgrading to insulated siding could be a smart investment. Whether you're building a new home or replacing old cladding, choosing siding installation Seattle that includes energy-efficient materials can make a measurable impact on your utility costs and year-round comfort. In this article, we're going to discuss what insulated siding is, how it works, and most importantly, how it can save you money on energy bills while enhancing your home's comfort, durability, and value.

What Permits Are Required for a DADU in King, Snohomish, or Pierce Counties?

By Victor K • August 2, 2025

Before contracting for an ADU in Seattle, it is important to know the different kinds of permits and the processes involved. Since it usually ends in a legal battle, it becomes a struggle costing you money , time, and reputation in the market. You must also fully understand that some of the permit laws are similar for all counties but some are county-specific which must be catered for by the commercial subcontractor Seattle. Many instances in the past have involved the wrong permit process initiation by the commercial project management Seattle causing later headaches. 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. Major Permit Requirements for all DADUs in Seattle Regardless of the county or area in Seattle, some permit laws and regulations are the same for all. This is why a smart commercial subcontractor Seattle needs to be smarter regarding the location of the DADU . The permit has to be applied to the right authorities and followed up in a correct manner based on location. First, let us see some of the generic permit requirements in Seattle. Construction Permit This is the main permit that involves the main structure of the DADU. The commercial construction subcontractor Seattle has to provide site plans, floor plans, design drawings of both elevation & cross section, energy code forms and certain engineer approvals if the designs are custom-built.

Multi-Trade Subcontracting for ADUs: Why General Contractors Choose United Seattle

By Victor K • July 23, 2025

Seattle has not only seen a boom in the ADU construction but also a requirement for commercial subcontractor Seattle that specialize in ADU construction has gone up. Setting up ADUs is not as costly as a DADU but it requires time and skill. Generally, the GCs outsource these projects to construction management subcontractors like United Seattle for a number of reasons. The foremost reason is the trust people at United Seattle have earned for all GCs and homeowners they have worked for. However, the trust does not come easily but with dedication and hard work. Some of the USPs of this great company are listed which are not their self-proclamation but genuine reviews from people who have worked with United Seattle over the years. Experienced In ADU Construction United Seattle and its experts have been in the middle of the whole ADU construction/designing boom since the very start. Not only do the experts have all the requisite technical knowledge but a deep insight into the permit process as well removing lags from your project even before the first brick is laid down. Because they are seasoned in ADU workflows, it helps the clients save time, money and client frustration.

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