Ichijo
Technological Homes

What is the meaning of Technological Homes? Ichijo provides a home where you can live comfortably while enjoying the energy efficient performance of technologies such as high-performance insulation and airtightness. The quality and durability of our homes gives homeowners peace of mind.
Our mission is to bring the homes of tomorrow to life today through advanced energy efficiency, thoughtful conveniences, and uncompromising Japanese quality.
The Pacific Northwest understands what we do at Ichijo USA, which is why our expansion here is such a natural fit. The desire for modern design, art, cutting-edge technology and environmental respect meshes perfectly with our company values and the way we build our homes. We are excited to now be able to share our years of experience, technology, and craftsmanship with you.
Our technology feels different. It’s not what you would expect when you hear the words cutting edge. We’re not looking to add more touchscreens to your life. We dig deeper to create homes that embrace form and function with technology at the core. It’s technology that naturally enhances your home and life.
Since our founding, Ichijo has focused on using natural materials and providing a healthy living environment for our customers. At many of our communities you can see this in our use of solar energy, high quality construction with rain screens, additional insulation and sustainable building practices.  In short, we design our homes for maximum efficiency without sacrificing comfort and livability.
Being one of the largest builders in Japan has its benefits. With over 100,000 homes built so far we’ve learned if we’re not able to find the exact materials we need, we don’t have to compromise, we make them.  Our cabinets, doors and more are all produced in our factories in The Philippines. This means we control the building process from day one. These components are all fabricated with care, to an exceptional level of quality, and the entire package is delivered direct to your home site.
Ichijo means One, or first, road, and that is how we build. Our experience with technology and focus on craftsmanship creates sustainable homes that are energy efficient and artfully constructed. One at a time. It’s not just the next thing, it’s the right thing.Looking to buy a new home? Ichijo is building new homes in Washington State and Oregon. Discover the Ichijo advantage of quality new construction home building in the Pacific Northwest.
Energy Efficiency
Future-ready features that save energy and enhance comfort.
Convenient Living
Thoughtful details and Ichijo’s in-house crafted products designed to make everyday life easier.
Uncompromising Quality Control
We bring the spirit of Japanese craftsmanship and quality to every home.

The Future of Energy-Efficient Living is Already Here

From effortless climate control to long-term savings, our energy-efficient homes are thoughtfully designed to enhance your comfort, reduce your footprint, and deliver the future standard of living today.
Energy-Efficient Building Envelope*
*Insulation types and availability may vary by community.
Total Comfort
The Nest learning thermostat monitors your home even when you’re away, making sure you maximize comfort and energy savings.
Solar Ready*
Many of Ichijo’s homes are solar ready so you can add solar panels with the purchase of your home or in the future. Our typical solar systems cover a third to all of the home’s energy needs.
Earth Advantage® Certified*
Our homes are Earth Advantage® Certified. Earth Advantage is a third-party, high-performance certification program for new single-family homes developed to assure homeowners that a certified home is energy efficient, healthy, and resource wise. *This is available for Ichijo homes in the Portland area.
Building Envelope
High-quality energy-efficient building envelope system reduces your energy consumption and saves you money.
Comfort that Learns with You
The Nest learning thermostat monitors your home even when you’re away, making sure you maximize comfort and energy savings.
Solar Ready*
Many of Ichijo’s homes are solar ready so you can add solar panels with the purchase of your home or in the future. Our typical solar systems cover a third to all of the home’s energy needs.
Earth Advantage® Certified*
Earth Advantage is a third-party certification that assures your new home is energy-efficient, healthy, and resource-wise.
*Features and certifications may vary by community.

ICHIJO USA with Japan Quality

At ICHIJO USA, we bring the spirit of Japanese craftsmanship and quality to every home, ensuring it is a valuable, long-lasting asset that provides peace of mind even at resale. Guided by our commitment to prioritize the customer’s perspective, we meticulously check structural components, insulation, and other hidden details, sharing our findings to provide transparency and assurance. Our “Japan Quality” approach reflects the precision of traditional artisanship, aligning with the high expectations associated with “Made in Japan.”
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1. Foundation
The foundation is a critically important part of supporting a home. Even a minor deviation can have a significant impact on the entire structure. While there are city inspections in place, ICHIJO has established its own stringent standards, ensuring that all homes meet a consistent and high-quality standard, providing a uniform level of excellence in every residence.
2. Framing
Framing is one of the most crucial steps in building a home, forming the structural backbone that ensures long-term stability and durability. This stage involves precisely assembling walls, roofs, and floors to support the home’s lifespan, safety, functionality, and energy efficiency. Before drywall or siding goes up, we conduct thorough inspections to uphold Ichijo’s high standards, maintaining the same quality as in our homes built in Japan.
3. Openings & Windows
To ensure that the building is airtight and comfortable to live in, we check that windows, doors, and other openings are properly sized and framed, that windows are installed, and that they are not tilted.
4. Level Subfloor
Level floors are vital for stability, functionality, and comfort. Even in structurally sound buildings, uneven floors can complicate flooring installation, impact aesthetics, and affect fixture alignment, potentially leading to issues with doors and cabinets. Precision in floor installation is key to a comfortable, high-quality living environment.
5. Insulation & Moisture Content
To ensure energy efficiency and lasting comfort, we thoroughly inspect insulation and monitor wood moisture levels. Proper insulation helps stabilize indoor temperatures and lower energy costs, while maintaining optimal wood moisture prevents structural warping and cosmetic damage. These measures contribute to creating a stable and eco-friendly home environment.
6. Airtightness
In airtightness inspections, we ensure the building meets standards critical for energy efficiency, comfort, air quality, and health. Proper airtightness prevents drafts in winter and cool air loss in summer, optimizing energy savings and climate control. Without it, insulation alone falls short, and indoor comfort is affected by temperature shifts and outside noise, impacting the indoor environment overall.
7. Exterior & Underfloor
We inspect exterior materials, underfloor, and attic spaces, providing detailed reports for our customers. The exterior reflects the building’s character and enhances its appeal and surroundings. For new homes, we prioritize meticulous finishing, ensuring layouts and details meet design standards. Lastly, we inspect underfloor and attic areas to prevent moisture issues and confirm insulation quality.
Inspection Stage

Details That Make a Difference

Small details that make daily living smoother, easier, and more enjoyable.
Hold The Door
It may seem like a small detail, but our magnetic doorstops are always there to offer a helping hand. These low-profile assistants conceal themselves in the floor when not in use, but they are always ready to help in a snap.
No More Hide and Seek
Our custom-made cabinets aren’t just beautiful on the outside. Each one includes efficient organizers to keep everything in view when you need it and make it disappear when you don’t. Included in all Ichijo homes are adjustable tray dividers, knife holders, spice racks, trash/recycling wagons, under cabinet lighting & earthquake safety lock cabinet door hardware.
Within Reach
All of our homes come with Ichijo’s own high-quality, piano-finish cabinetry with full extension soft close and BLUM hardware as well as cabinet pulls on all cabinets and drawers. Our pull-down shelves eliminate the need for a step stool to reach the top shelf.
Outta Sight
Ichijo’s dual-slide doors make it easy to fill up and hide it all away. The doors slide both ways so it’s easy to reach in the corners of your closet!
Electric Fireplace
The electric fireplace provides the warmth and coziness of a fireplace without the need for gas lines or venting. Elevated style shines through with the sleek and modern design – no mesh screens or visible heat vents, a multitude of flame and ember bed lighting themes. Enjoy year-round, with or without heat.
Solar Ready
Many of Ichijo’s homes are solar ready so you can add solar panels with the purchase of your home or in the future. Our typical solar systems cover a third to all of the home’s energy needs.

Homeowner Stories

Real stories from families who chose Ichijo. From the first walk-through to years of living in their homes, they share how our commitment to comfort, quality, and thoughtful design has shaped not only their houses but also the way they live every day.
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"We became big fans of Ichijo."

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Kim and Danny
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"I feel the Japanese style and craftsmanship."

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Homma Family
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"This was the home we found after looking for over three years."

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Debbie

I am delighted to share my exceptional experience with Ichijo Home Builders. Throughout my initial interaction to the final walkthrough, their commitment to quality and craftsmanship was evident. The fusion of traditional Japanese design principles with modern American comforts created a truly unique and inviting home for my family. The attention to detail, superior materials, and efficient construction process exceeded my expectations. The team’s professionalism, transparency, and unwavering dedication ensured a smooth and stress-free building journey. We own more than one home built by Ichijo. I wholeheartedly recommend Ichijo Home Builders for their outstanding workmanship and personalized service.

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Sarang Fegde and Yogini Joshi

We absolutely love our Ichijo house! More than that, we appreciate all of the time and effort they put into working with us. We recently purchased the Harrison Court home from it’s previous owners, as we were drawn to it’s exceptional quality, energy-saving construction, and superior design. It is clear the Ichijo teams puts thought into their work and it makes us feel good knowing we can reduce our environmental impact by living in a green home. When we moved in, the house needed some repairs on the windows and siding. We brought up some questions and concerns with the Ichijo team and they went above and beyond our expectations to get things fixed. They were responsive, communicative, professional, thorough, and extremely generous with their time and resources. My husband and I feel very thankful to have purchased a home built by builders who stand by their quality of work, especially over time.

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Chelsea Oliver

I’m very happy with my Ichijo townhouse. The layout is bright, spacious and efficient. The technology and appliances are modern and work extremely well. The construction is solid, well insulated and shows Ichijo builders are craftsmen.

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Edmund vonAllmen

This has been an incredible process. We feel so lucky to have the home that we do and to be in here enjoying it. We know that there aren’t a lot of folks, a lot of friends that have had this opportunity. It’s something that we are so thankful for. We had such a great experience working with Ichijo.

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Nina and Andrew Harrison