ACCESSORY DWELLING UNITS
A Space That Changes What’s Possible.
Most homeowners don’t start with the term “ADU.” They start with a need: a safe place for a parent, stability for a college‑age child, or a way to create rental income that supports monthly costs. An ADU is a flexible, independent living space that brings stability for family, finances, and the future.
Built for Real Life.
Across the Inland Northwest, homeowners explore ADUs for practical, meaningful reasons — financial stability, family support, and long‑term flexibility. These are the stories we hear every day.
Image © AARP
Rental income
Monthly stability that helps offset rising costs and supports long‑term financial goals.
Image © AARP
A place for aging parents
Close enough to help, private enough to honor independence and dignity.
Image © Collom Construction
Support for students
A safe, stable space for college‑age children in a region with high housing pressure.
Image © AARP
Room for guests
A welcoming space that feels like home — without crowding yours.
What an ADU Actually Is.
An ADU is a small, independent living space on your property that is designed for comfort, privacy, and long‑term value. You don’t need to know the rules or the terminology. Tell us what you’re imagining, and we’ll help you understand what’s possible.
Building‑science comfort
Warm in winter, cool in summer, and healthy inside.
ENERGY STAR® experience
High‑performance building is our foundation. Every ADU benefits from the same expertise.
High‑quality materials
Durable, beautiful materials that reduce maintenance and increase long‑term value.
Craftsmanship you can feel
Every detail matters. Your ADU is built with care, precision, and pride.
Designed to match your home
We blend rooflines, siding, trim, and architectural details so your ADU looks seamless like it’s always been part of your property.
What’s Possible on Your Property.
Our region needs more flexible housing options for students, families, and homeowners who want stability without moving. Every property is different, and every project starts with a conversation about what makes sense for your space.
Image: AARP
Backyard cottage
Image: AARP
Garage conversion
Basement ADU
Image: AARP
Above‑garage suite
Image: AARP
Studio or workspace
AARP ADU Plans: A Trusted Starting Point.
AARP has created a collection of free ADU designs that are becoming increasingly popular across the Inland Northwest. These plans give homeowners a simple, trusted starting point especially for aging parents, rental income, and long‑term flexibility. We can help you understand how these designs fit your property and your goals.
AARP plans make it easier to explore what’s possible without navigating complex building terminology or zoning language. They offer clarity, simplicity, and confidence. We can walk your property to show you how these designs translate into real options.
Long‑Term Value.
ADUs create rental income, increase property value, and perform efficiently. They offer stability today and flexibility tomorrow which is a smart investment for families across the Inland Northwest.
Built with Expertise. Designed with Intention.
Collom Construction builds ADUs with premium materials and craftsmanship. We ensure they perform beautifully all year long. Our ADUs are warm in winter, cool in summer, and efficient year‑round. Together, we create small homes that feel incredible to live in.
A Simple, Confident Process.
We guide you through every step from the first conversation to the final walkthrough with clarity, communication, and care.
Serving the Inland Northwest.
Collom Construction builds ADUs for homeowners across the Inland Northwest, Idaho, Washington, and the surrounding region. Every property is unique, and every project starts with a conversation.
Let’s Explore What’s Possible.
Tell us what you’re imagining. We’ll help you understand your options and create a space that fits your life.
Start the Conversation