
ADU Construction & Guest Suites in Seattle & Everett, WA
Alta Group Remodeling helps homeowners create detached and attached living spaces designed for family, guests, rental flexibility, or long-term property value. From planning and layout to finishes and construction, our team helps create ADUs and guest suites that feel intentional, functional, and beautifully connected to the property.
Flexible Living Spaces
We build custom ADUs and guest suites tailored to your property and lifestyle needs.
Detached ADUs
A standalone structure built on your property that offers complete privacy and independence. Perfect for rental income, multi-generational living, or a private home office, our detached ADUs are designed to maximize space and complement your main home's architecture.

Attached ADUs
An extension of your existing home that functions as a separate living unit. Attached ADUs are an excellent way to add value and flexibility while sharing walls and utilities, often making the permitting and construction process more streamlined.

Guest Suites
Transform an underutilized area of your home—such as a basement, attic, or garage—into a luxurious guest suite. We design these spaces with comfort in mind, incorporating private bathrooms, kitchenettes, and refined finishes.

Rental & Family Living Flexibility
Discover the benefits of adding an ADU or guest suite to your property.
Design, Planning & Construction
A guided remodeling experience designed to bring clarity, confidence, and craftsmanship to every phase of your project.
Private Consultation
We begin with a conversation about your vision, goals, budget, timeline, and the way you want your home to feel and function.
Design & Scope Planning
Our team helps define the layout, project scope, priorities, and design direction before construction begins.
Material Selection
We guide you through finishes, fixtures, surfaces, cabinetry, tile, flooring, and design details.
Proposal & Timeline
You receive a clear project plan, scope of work, expectations, and timeline so you understand the path forward.
Construction Management
Our team coordinates the renovation process with attention to communication, craftsmanship, jobsite care, and schedule management.
Final Walkthrough
We review the finished project with you, address final details, and make sure the completed space reflects the vision.
ADU FAQs
Common questions about our luxury ADU and guest suite construction process.

Ready to Start Your Next Chapter?
