ADU Construction in Kent, Washington
Thoughtfully Planned ADUs Designed for Comfort, Function, and Long-Term Value
Housing needs change faster than most homes are built to handle. A homeowner might need space for an aging parent, a place for a grown child to land, or a private unit that brings in steady rental income. 1st Proservice helps homeowners across Kent, Washington turn these needs into a finished, livable space through a process that stays organized from the first sketch to the final walkthrough. With 25 years of experience in home improvement and remodeling, our team knows how to plan an accessory dwelling unit that works with the lot it sits on, not against it.
Every ADU project starts with a clear look at the property, the goals for the space, and the budget available to reach them. From site evaluation through final inspection, our approach keeps homeowners informed at each stage, so there are no surprises about cost, timeline, or scope once construction begins. This kind of planning matters most in a market where good buildable space is limited, and every square foot needs to count.
Our ADU Construction Services
Detached ADU Construction
We design and build freestanding accessory dwelling units that function as complete, independent homes. Our team handles framing, electrical, plumbing, and interior finishing so the unit meets code. We plan every layout around how the space will actually be used, then build it to last.
Garage Conversion ADUs
Many homes already have a garage that sits underused, and converting that space is often the fastest path to a finished living unit. We handle the structural changes needed to meet residential code, including insulation, plumbing, electrical upgrades, and windows, for a shorter, more affordable timeline.
ADU Additions and Attached Units
For homeowners who want extra living space connected to the main house, we build attached additions that function as a private unit while sharing a wall with the existing structure. We coordinate the tie-in, utility metering, and interior finishes for a self-contained space.
ADU Design and Permitting
Before construction begins, we prepare complete architectural drawings and manage the permitting process required to move a project forward. We review lot size, setback rules, and utility capacity, then prepare the documentation local building departments require. Careful planning here helps prevent delays and revisions later.
Create a Space That Works for Your Future
An accessory dwelling unit adds real value to a property, whether it becomes a rental, a space for family, or room to grow into over time. 1st Proservice has spent 25 years helping homeowners across Kent, Washington plan and build additions that hold up to daily use and meet the codes required for occupancy. A well-built ADU should feel like a natural part of the property, not an afterthought bolted onto it. If a garage conversion, a detached unit, or an attached addition fits into your plans, we are ready to walk through what that project would look like on your property and what it would take to get it built correctly and permitted the first time around.
client testimonials