Accessory Dwelling Units

Build a Custom ADU That Works for Your Lifestyle

Expand your property with a thoughtfully designed Accessory Dwelling Unit, built for flexibility, value, and long-term use.

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Why Build an ADU

Smarter Living Starts with an ADU

An Accessory Dwelling Unit (ADU) is more than just additional space, it’s a flexible solution that adapts to your lifestyle and long-term goals. Whether you’re creating a private living area for family, generating rental income, or simply adding functional space, an ADU offers lasting value.

With changing zoning opportunities in Washington and Oregon, homeowners now have more flexibility than ever to build secondary living spaces on their property. A well designed ADU not only enhances usability but also increases overall property value.

At Nick and Sons, we approach every ADU with a focus on smart design, efficient use of space, and seamless integration with your existing property ensuring it looks, feels, and functions like a natural extension.

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A Smart Investment in Your Property

ADUs offer both immediate benefits and long-term value. With the right design and execution, they can transform how your property is used and significantly increase overall functionality and appeal.

WE FOCUS ON:

Consistent monthly additional income

Boost long-term home resale value

Comfortable private space for family

Guest house, office, or suite

OUR EXPERTISE

TYPES OF ADUs we offer

Detached ADUs

Separate structure for full privacy

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Attached ADUs

Connected to your existing home

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Garage Conversions

Transform unused space into living space

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Basement Conversions

Maximize underutilized space with smart design

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SMALL SPACE ADUs

Optimized for efficient everyday living

Our Process

01

Consultation & Site Evaluation

We understand your goals, budget, and property conditions, while evaluating zoning and site feasibility for a smooth ADU plan.

02

Design & Planning

We create efficient ADU layouts and detailed designs tailored to your space, needs, and long-term use, ensuring maximum functionality.

03

Approvals & Construction

We handle all required permits and manage the full construction process with regular updates, supervision, and quality control.

04

Finishing & Handover

We complete interior detailing, final inspections, and deliver a fully ready ADU that is functional, compliant, and built to last.

Get Started

Tell Us About Your Project

BUILT RIGHT FROM THE START, NO ADU GUESSWORK

ADU projects involve more than just construction  they require careful planning, zoning knowledge, and precise execution. Without the right team, small mistakes can quickly turn into costly delays.

Our team handles the entire process with clarity and experience, so your ADU is built efficiently, meets all requirements, and delivers long-term value without unnecessary complications.

Detailed ADU Planning & Design

We plan every detail from layout to permits to avoid delays and surprises.

Transparent Timelines & Process

Clear communication keeps your project on track at every stage.

Built for Efficiency & Long-Term Value

From smart layouts to quality construction, your ADU is built to perform and last.

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Projects Completed
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Years Of Experience
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Client Satisfaction Focus
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Serving States — WA & OR
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FINANCING

Flexible Financing. Stress-Free Projects.

Building an ADU is a smart investment  but it doesn’t have to feel overwhelming. With flexible financing options, you can move forward sooner and spread the cost over time.

At Nick and Sons, we help you explore financing solutions that fit your budget, so you can confidently plan your ADU without unnecessary stress. Our goal is to keep the process simple, clear, and accessible from day one.

Whether you’re planning a compact unit or a fully custom ADU, we’ll guide you through options that make your project achievable without unnecessary financial pressure.

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REVIEWS

hear from our happy clients

faq's

Yes, ADUs require permits and must follow local zoning regulations. Our team handles the entire permitting process for you, ensuring everything is compliant and approved before construction begins.

The timeline depends on size, design, and permit approvals. On average, most ADU projects take a few months from planning to completion. We provide a clear timeline before starting.

Yes, many homeowners use ADUs as rental units to generate additional income. We design ADUs with functionality and efficiency in mind to maximize their rental potential.

Absolutely. We design every ADU to blend seamlessly with your existing property, both in structure and style, so it feels like a natural extension of your home.

Costs vary based on size, design, and site conditions. After understanding your goals, we provide a detailed estimate so you know exactly what to expect before starting.

Ready to Build Your ADU?

Let’s design and build a space that adds value, flexibility, and long-term potential to your property,  with a team you can trust from start to finish.

Tell Us About Your Project