ADU Planning

ADU Construction

ADU planning guides

Feasibility, permits overview, design basics, and construction phases — permit-aware, no approval guarantees.

FeasibilityPermitsDesignConstruction

Backyard ADU foundation excavation by Artbrick in Snohomish County

Choose an ADU guide

ADU Feasibility on Your Lot

Lot size & setbacks
Utility tie-in
Access for construction

ADU Permit Process Overview

Pre-application
Plan submittal
Inspections

ADU Design and Layout Basics

Studio vs 1-bed
Kitchen & bath layout
Storage & light

What to Expect During ADU Construction

Site prep
Foundation & framing
Interior build-out

Also explore

ADU Construction services → All guides → FAQ →

Exploring an ADU?

Share your address and goals. We will discuss feasibility and whether we handle permits in your jurisdiction.

Contact Artbrick