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ADU Construction

ADU Construction & Permits

Licensed ADU contractor · Snohomish County and North King County

Accessory dwelling units across Snohomish County and North King County — design-build with permits handling so you are not navigating city and county process alone.

Finished backyard ADU interior with quality build-out by Artbrick in Snohomish County

Licensed. Bonded. Insured.

Your home is in safe hands.

L&I Verified

Washington State L&I verified for your protection.

7 Years Experience

Serving Snohomish and North King County since 2019.

ADU Construction

Backyard cottages with permits handling

Artbrick LLC builds accessory dwelling units across Snohomish County and permit-ready jurisdictions — with permits handling so you are not navigating city and county process alone. From feasibility through construction, our licensed team scopes your ADU clearly and communicates each step before work begins.

Whether you need a detached backyard cottage, an in-law unit, or rental ADU, we walk through setbacks, utility tie-ins, and design review requirements honestly — without guaranteeing approval timelines or rental income.

Need a kitchen, bath, or finish work on the primary residence? See Remodel & Construction. Want a mural or fresco feature inside your ADU? See Art & Murals.

Permits handling and clear design-build scope — before ground breaks on your lot.
ADU foundation concrete pour by Artbrick in Snohomish County

ADU foundation pour — Snohomish County

Detached ADUs Permits handling Design-build Utility tie-in Interior finish Feasibility review

ADU Services

What We Build

ADU construction with permits handling under one licensed team — scoped clearly for homeowners adding living space.

Finished ADU interior build-out by Artbrick in Snohomish County

ADU Construction

Detached and attached accessory dwelling units as scope allows.

Design-build from feasibility through construction. Permits handling, utility coordination, and interior finish work documented in your written proposal.

Recent Work

ADU Construction Portfolio

Accessory dwelling unit projects across Snohomish County and North King County.

Our Approach

How an ADU Project Runs

Three clear phases from feasibility to handoff — with permits handling and scope agreed before construction begins.

Feasibility & Permits

We review your lot, setbacks, utility access, and jurisdiction requirements. Permits handling covers application support and plan review coordination — not guaranteed approval.

Construction

Foundation, framing, MEP rough-in, and exterior shell run with inspectable milestones. Interior finish work follows the same quality standards as our remodel wing.

Finish & Handoff

Interior doors, trim, fixtures, paint, and punch-list walkthrough. The ADU is ready for occupancy at handoff.

Where We Work

ADU Construction Service Area

Based in Granite Falls and serving homeowners across Snohomish County and North King County for ADU construction in permit-ready jurisdictions.

Snohomish County

Everett · Lynnwood · Edmonds · Mill Creek · Granite Falls · Lake Stevens · Marysville · Bothell

North King County

Seattle (north) · Shoreline · Kirkland · Redmond · Woodinville · Kenmore · Bothell

ADU feasibility depends on your lot and local codes. Contact us with your address and we will confirm whether your project is a fit.

ADU Questions

Frequently Asked Questions

Overview questions about our ADU wing, service area, permits approach, and how to get started.

What ADU services does Artbrick offer?

Our ADU wing covers design-build construction for detached backyard cottages, attached units, and conversions where jurisdiction rules allow. See ADU Construction for scope on feasibility, permits handling, foundation, shell, and interior finish.

Which cities and counties do you build ADUs in?

We serve homeowners across Snohomish County and North King County — including Seattle, Everett, Granite Falls, Mill Creek, Lynnwood, Edmonds, Shoreline, and Kirkland. ADU rules vary by city; we confirm feasibility for your address before design work begins.

How do I know if my lot qualifies for an ADU?

Lot size, setbacks, utility access, and existing structures all affect whether an ADU is feasible. We review your parcel map and local ordinance in an initial feasibility conversation — we do not quote buildability from an address alone.

Does Artbrick handle permits or do I hire separately?

Permits handling is part of our design-build ADU scope — application preparation, plan submission, and coordination with reviewers. You are not left to navigate city or county process alone, though we do not guarantee approval timelines.

Can you coordinate kitchen and bath finish inside the ADU?

Yes. Interior finish — drywall, flooring, trim, kitchen, and bath — follows the same quality standards as our remodel wing. Finish level is documented in your written proposal.

How does ADU construction relate to your remodel services?

ADU construction is a separate wing focused on new accessory units. If you also need work on your primary home — kitchen, bath, or whole-home renovation — see our Remodel & Construction services. Projects can be scoped separately or discussed together.

How do I start an ADU conversation with Artbrick?

Use our contact form or call (425) 422-5947. Share your address, ADU goals, and rough timeline — we will follow up to discuss feasibility before ground breaks.

Is Artbrick licensed for ADU construction in Washington?

Yes. Artbrick LLC is a licensed, bonded, and insured Washington State contractor — L&I verified. License ARTBRL*812B8.

Still have questions?

We are happy to walk through your lot, ADU goals, permit path, and feasibility.

(425) 422-5947

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Get Started

Tell us about your ADU project

Share your address, ADU goals, and rough timeline. We will follow up to discuss feasibility and permits.