Please contact your Greenfab representative at 1-877-846-4445 to understand the specific costs involved in purchasing a new Greenfab home.

Are your prices guaranteed?

YES! However, Greenfab can only guarantee a price for the Base Home you choose and the Upgrade Packages you choose and not for Everything Else. Once we have helped you find the right home and have received the permits, you will be guaranteed a price for your home that WILL NOT CHANGE. There will be cases where changes must be made to meet local codes or conditions, and these may adjust the price. These items can readily be discussed and identified by Greenfab during the planning phase. We cannot guarantee the price or work from a contractor you might choose that is not part of the Greenfab network. This is why we recommend Greenfab to take care of everything for you.

The price we will quote and guarantee for you is the price of the home modules themselves as they leave the factory. Other cost items that are not guaranteed include:

  • Permits
  • Site work
  • Transportation
  • Installation
  • Finishing

What will it cost to ship my Greenfab home?

Please call your Greenfab representative at 1-877-846-4445 to help you determine transportation costs for your area.

Is my deposit refundable if I decide not to go through with buying my home?

Yes. Your deposit refund will depend on which part of the process you are in when you decide to terminate. If you cancel the process, valuable time and resources would have already been invested in creating your home. Your deposit does become non-refundable after a certain point in the process. Please call your Greenfab representative at 1-877-846-4445 to get answers to these questions and more.

Are "prefabricated" homes less expensive than other homes?

Not necessarily. Prefabricated homes have the greatest cost savings when applied to volume. This means that the more homes or units we can provide in any given project, the less expensive your cost will be per home/unit.

Cost saving due to increased volume is more of an advantage for larger developers with multi unit projects.

For single family customers building one home, we strongly believe that our process and products will provide much greater value overall, not just in cost savings, than most other homes you will find available.

Can I purchase a Greenfab home directly from your factory?

No. When you purchase a home from Greenfab it is important to go through the proper sales channels. Our relationship with the factory is such that Greenfab takes care of each and every customer and the factory builds the home.

Can I get a general home estimate on your website?

Not yet. Greenfab will be building a Home Customization tool so that you can get a general idea of what it might cost to get a Greenfab home that is right for you. Although these estimates will be based on many known costs, they will also be based on a number of factors that will not be fully understood until we complete a feasibility study. The estimate you will receive on our website is just the first step in the home buying process and cannot be guaranteed. To learn more and to continue the process, please call 1-877-846-4445.


What are the steps involved in purchasing a Greenfab home?

Step 1: Secure Land

Whether you already own a piece of land or are looking to purchase one, we are here to help you determine the feasibility of building your new Greenfab home. Please contact your Greenfab sales representative at 1-877-846-4445 to learn about the specific site requirements you need to be aware of when selecting a site.

Step 2: Secure Financing

Before we begin the design and engineering process with you, it is important that you obtain financing. Financing a Greenfab home is similar to a traditional new construction process. The bank will consider your project as new construction and will provide you with a construction loan that will be converted to a traditional home loan once construction is complete. Greenfab is always here to help you through this process to make sure you feel comfortable and get the home you are looking for.

Step 3: Home Selection

During this step, Greenfab will work with you to select your home model and floor plan options as well as any materials, finishes and upgrade packages.

Step 4: Contract

Once you have worked with us to understand any specific considerations and your selections have made, we will enter into a contract with you.

Step 5: Engineering

At this point, your home will be engineered to meet any local jurisdiction or state level requirements. Because your Greenfab home is a modular home, the engineered plans must be approved by the state permit agency. Greenfab takes care of all these steps for you.

Step 6: Permitting

Greenfab will provide you with multiple sets of engineered permit drawings so that your site contractor may submit them to your local permit office. If you are working with one of Greenfab's site contractors we will manage this for you. Greenfab will also coordinate the permit process for the State.

Step 7: Manufacturing, Shipping and Setting

Now that your home has been permitted by both the State and your local permit office, it is now ready to begin factory production. This process may take anywhere from two to four weeks. Once complete, your home will be transported by truck to your site. Upon arrival, we will coordinate a crane to lift your home from the truck and our set crew will secure the home to the foundation.

Step 8: Finishing

When the home arrives to your site and is secured to the foundation it can be anywhere from 60-90% complete. At this point, the site contractor will finish up any remaining work that needs to be done on the home. This may include; wood flooring, exterior siding, painting and patching

Step 9: Final Walkthrough

Once the work has been completed on your home, Greenfab will walk through your home with you to make sure that every detail and finish meets your satisfaction. After checking off all items you are now ready to move in. Welcome Home!

If I already own land and want to build a Greenfab home, what are my next steps?

Your first step will be to call us at 1-877-846-4445 so we can learn more about your site and needs. If you decide to move forward with us, our first step will be to complete a Feasibility Study.

How soon can I get a Greenfab home?

Usually it can be done within 3 to 4 months but it also depends on a number of factors such as; permits, design process, location, financing

On a custom project, we work in close collaboration with you on basic considerations such as total living space, elevations (one level or multiple levels), and number of bedrooms/bathrooms.

Obtaining permits in some cities is simply a matter of filling out the forms and paying the required fees. In other cities it is a more arduous process and every step of your building process may be reviewed.

Who manages the foundation and site construction?

We do. Typically, you will work with any of our approved general contractors who have experience with our homes, foundations and preparing a site for a modular home. As a company focused on customer satisfaction, Greenfab is dedicated to helping you throughout the entire home building process. If you choose to hire your own contractor, there will be a learning curve as they will be building the foundation to the specifications we provide and working directly with the crane and installation crew. We can only guarantee the work for you that we do with our approved contractors.

What agency governs and approves your homes?

Modular prefab homes must be approved at the state level before leaving the factory, while site related permits must be secured from your local jurisdiction. These include permits for your foundation, utility hook ups, and the installation of the home on the site. Greenfab will make sure all of these approvals are met for your home.

Will Greenfab do everything for me?

Yes. Greenfab offers a complete line of services including architecture, landscape design, general contracting, and manufacturing. We do this to make sure you are getting the quality service that you deserve.

How long will it take?

We estimate that within 2 to 3 months of signing your purchase order and receiving permits we can deliver your home 80% complete. After your home is completed in the factory, setting of the modules happens in 1 to 2 days. Once the house is secured to the foundation, there will be an additional 2 to 3 weeks to finish everything up. Keep in mind that financing, securing local permits, and other external factors may affect timing. Highly customized projects may also add time.

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Availability or Location / Site / Feasibility

Where are your homes available?

Right now, we can cost effectively deliver our homes throughout the Pacific Northwest region, including the states of Washington, Oregon, Idaho, western Montana, northern most California and southern British Columbia. As Greenfab continues to develop relationships with builders outside of this region, we will be able to deliver our homes to most of the continental United States. Stay tuned for these new developments and a series of homes designed specifically for your region.

How do I visit a Greenfab home?

Greenfab does not have a year around model home available, however we are providing tours on a time to time basis. Please give us a call at 1-877-846-4445 to learn more about open house schedule.

Is there a free consultation?

Yes. We can answer most questions by phone or email and you can call us at any time 1-877-846-4445. You can also get the answers to many questions by visiting our FAQ’s. If you feel you would like to meet with us in person, we can arrange for that as well. We will also meet with you at your site once you have retained us to complete a Feasibility Study.

Why do I need Greenfab to do a Feasibility Study on my site?

We would like to determine if your site can accommodate both the house and its delivery. Each site has unique conditions and topography, i.e. flat, slightly sloped, steep hillside, irregular shaped, etc. We would also like to check with your local planning agency for any construction restrictions, as well as any general building requirements for your site. If it is straightforward, we can assist you with this process at no charge. If the site is more complicated we can have our setting consultant visit the site to ensure a smooth delivery for a small fee.

Is the feasibility study fee refundable?

Yes. If we determine that it is feasible to build a Greenfab home on your site, the fee is credited towards the costs of the Purchase Order. If you choose not to continue building your Greenfab home, this fee will not be refundable.

Do you supply the land to go with the home?

Yes. We have knowledge about land availability throughout the Pacific Northwest and will work closely with our Greenfab real estate professionals to find the perfect site for you new home. If you are looking for a site outside of our network, we will help to connect you with a qualified real estate professional within our network.

Will a Greenfab representative visit my site?

Yes. We will visit your site for the first time during the feasibility study period to determine if your site can accommodate a prefab home. We will also visit your site throughout the site construction, craning, setting, and finishing process. With Greenfab, you will never feel alone.

Can a Greenfab home be built on a site with a slope?

Yes. A hillside can accommodate a Greenfab home with proper preparation and additional site construction. Ideally, your location is fairly flat for easy delivery and installation. Depending on the degree of slope, concrete retaining walls may be required to create a level pad for the house. Pleas be aware that as your site increases in slope your foundation and excavation costs will also go up. If you have a hillside lot, we recommend you consult with us early in the process.

Will a Greenfab home work in my climate?

Yes. We have spent a lot of time designing our homes to be adaptable for most climates within the United States. For extreme conditions such as cold, heat, humidity or snow, Greenfab will work with local building codes to make modifications to our homes to function as an efficient and safe home for your climate. In the future, Greenfab will be offering a line of homes specifically designed to adapted to any of the six unique «Eco Regions» found within the United States.

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Design and Planning

How do I choose a Greenfab home that is right for me?

Greenfab offers homes through our pre-designed line of Standard Homes and through a fully custom home based on your desired plan, design and needs.

What is a Standard Home?

Our Standard Homes have been pre-designed to help you with the often times daunting task of designing a home From Scratch. With our Standard Homes, you will always start with a Base Home incorporating finishes that have been optimized to balance design and sustainability with cost and enhance efficiency and value. From this base, you will have many Upgrade Packages to choose from to make your home fit your specific lifestyle needs.

The Base: When choosing any of our Standard Greenfab homes, you will always begin with a base home. Our base homes incorporate finishes that have been optimized to balance design and sustainability with cost and enhance efficiency and value. From this base, you will have many finish and performance options and upgrade packages to choose from to make your home fit your specific lifestyle needs.

Every Standard “Base” Greenfab Home will include:

  • Finishes: doors, walls, ceilings, windows
  • Fixtures: lights, handrails, handles, sinks, tubs, toilets
  • Appliances: refrigerator, oven, dishwasher, cooktop
  • Heating/cooling system
  • Kitchen & bathroom cabinets and countertops
  • Minimum LEED for Homes Gold and Built Green 4 Star level of materials and energy systems
  • External power supply for electric car plug-in

*Greenfab's Base Homes do not include driveways, decking or landscape design and installation.

To learn more, please visit our Our Homes section or call your Greenfab representative at 1-877-846-4445.

Upgrade Packages: When customizing your Greenfab home, you have the option to choose from a variety of upgrade packages to help make your home truly unique to you. Our upgrade packages have been created to offer style, finish and sustainable performance options.

To learn more, please visit our Upgrade Packages section or call your Greenfab representative at 1-877-846-4445.

What is a custom, From Scratch home?

If you cannot find a home that fits your lifestyle or design preferences, Greenfab can help you design and build a home just for you. Our From Scratch, or custom design process, takes a little more time and costs a little bit extra than our Standard Home designs but you can be assured to get the home of your dreams. During this process, you will work with our architects to design your home from scratch. This design process assures that you will get the right Greenfab home for you, even if you cannot find one while browsing our standard homes.

How much can I customize a Greenfab home?

Once you have selected a base home from within our line of Standard Homes, you will be able to customize your home through a variety of Upgrade Packages. Our upgrade packages have been created to offer style, finish and sustainable performance options. As with our custom, From Scratch process, your options are endless although each home will be designed to modular efficiencies. To learn more, please call your Greenfab representative at 1-877-846-4445.

Do I own the architectural drawings when I buy a Greenfab home?

No. As with all house plans, the drawings we create are copyrighted property. You do own the right to build the plan you choose and customize on a single-use basis.

Do you build multi-family or duplex homes?

Yes. Greenfab offers a full design service to meet your every need. We work with homeowners and developers to design projects with multiple units or rental potential. Please call us directly at 1-877-846-4445.

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Models, Options, Packages

What home models can I choose from?

We are continually adding Standard Home designs to our product line to offer you more variety and choice. Please browse our line of Standard Homes to see what we are currently offering.

What options and upgrades can I choose?

We have put a lot of energy into creating Upgrade Packages and options to meet your lifestyle needs.

To learn more, please call your Greenfab representative at 1-877-846-4445.

Here are your upgrade package options for any of our Standard Line of homes. These may also be applied to any custom home designed From Scratch:

Home Performance Packages

Net Zero Energy: A Greenfab home that utilizes the latest in renewable energy technology to take zero electricity from the grid. This means that you will be self-reliant and have no energy bills!

Exceptional Indoor Air Quality: A Greenfab home with extra emphasis on healthy indoor air so you and your family can breath easy. This package is essential for those people with respiratory conditions, allergies or asthma.

Rainwater: A Greenfab home with extra emphasis on collecting rainwater and using it for all non-potable water needs including; laundry, dish washer, toilet flushing and irrigation.

Water Independence: A Greenfab home that collects and uses rainwater for all potable and non-potable needs and treats all wastewater on-site. This package will allow you to be self-sustaining and efficiently use a resource that is becoming depleted throughout the world.

Green Roof: A Greenfab home that has a ‘living roof’ to absorb rainwater, provide insulation and create habitat. With a green roof, you are helping to offset the impact of building a home on your site.

Green Tech: A Greenfab home that collects and measures real time data about weather, energy, water-use and provides constant feedback to trouble shoot and monitor performance. This package will give your home a “heart”. When you come home everyday you will be able to check in to see how your home performed the night before and while you were gone. Your home will then give you suggestions on how to be more efficient, ultimately saving you money.

Responsible Habitat: A Greenfab home that focuses on preserving and maintaining habitat – salmon safe site development, FSC lumber and landscape planting plans specific to your location.

Pure Materials:A Greenfab home that eliminates all known toxins from the building materials such as mercury, PVC, etc. This package will also ensure that you are reducing the overall embodied energy that goes into transportation by using materials manufactured within 500 miles of your site.

Certification Package: Greenfab will compile, submit and complete all documentation to verify that your home meets third party certification standards including Built Green, LEED for Homes, Energy Star and the Living Building Challenge.

Home Finish Packages

Appliances: upgrade to more efficient and higher-end appliances

Fixtures: upgrade to more efficient and higher-end fixtures

Finishes: upgrade to higher-end cabinetry, paints and flooring

Decking and Overhangs: upgrade to higher end materials or larger decks.

Landscape Packages

Landscape Design: Greenfab works with talented landscape designers and architects to create beautiful and functional outdoor spaces that benefit you and the environment. We will work with you to create sophisticated and functional landscapes that reflect your lifestyle, needs and concern for the environment. We focus on drought-tolerant plantings, raingarden integration, recycled materials and healthy soils.

Landscape Maintenance: The installation of an environmentally friendly landscape is only the beginning. Maintaining it responsibly is a long-term commitment that really makes a difference for the health of people and the planet. Greenfab provides this service throughout the Puget Sound region near Seattle.

Grey Water Treatment: Greenfab can design and install a grey water treatment system that integrates into your landscape. This system collects water from your sinks, shower and laundry into a series of bio-filtration tanks that clean the water and release it into a beautiful raingarden integrated into the landscape. So, instead of collecting your rainwater with our rainwater package and putting it right back into the municipal treatment system, you can now be credited for saving tax payer money and recharging the groundwater system.

Education and Maintenance Packages

Education: Greenfab will provide extended education around your green home features

Maintenance: Greenfab will provide ongoing and regular maintenance and troubleshooting of your home on an annual basis.

Other options will include; decks, window overhangs, garages/carports, outbuildings/shed.

Can I change the floor plan of one of you Standard Homes?

Yes. For each Standard Home, we offer a variety of configurations to adapt to your site and optimize your lifestyle needs. We can mirror and flip any floor plan as well as add rooms or open it up for more open space. Please browse our line of Standard Homes to find the floor plan right for you.

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Building your Home

Can you guarantee a firm delivery date?

Yes. Once we have received the final permit plans and you have given us authorization to begin building your home, we can then guarantee a delivery date.

How is my home delivered and installed?

Once your home has finished production in the factory and your site has been prepared, including a complete foundation, then your home will be placed on a truck and delivered to your site.

Once arriving at your site, our installation and set crew will remove your home from the truck using a crane and gently place it on your foundation. Once it is placed correctly, your home will be secured together to your foundation. Once this process is complete, your home is stronger and more structurally sound than most traditional site built homes.

Will Greenfab complete all the work once my home is delivered?

Yes. Greenfab will manage and coordinate everything for you until you are comfortably living in your new home. The same approved Greenfab contractor that completes the work to prepare your site for a home will also be there to complete the installation and finishing work necessary to make your home “move-in” ready. With Greenfab, you will never feel alone.

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Do I need special financing for my Greenfab home?

No. Conventional construction loan financing from a bank or a separate mortgage lender is always available. Greenfab homes are not US Department of Housing, Urban Development, mobile or manufactured homes. Once they are delivered to your site they are permanently attached to the foundation. Our homes are considered "real property" and the same as a standard site-built home.

Is there a lender that can help me finance my Greenfab home?

Yes. We work closely with our lending partner, Land Home Financial, to make sure that our customers are treated professionally. Land Home Financial focuses their lending solely on modular homes and they understand the process better than anyone. Building a Greenfab modular home can be a unique process and it is best to work with professionals that understand it.

Can I use the equity in my current home as a down payment on my new Greenfab home?

Yes. You will use a Bridge Loan. A Bridge Loan enables you to use the equity in your home as the down payment on a Construction-to-Permanent Loan. During construction, there are no monthly mortgage payments on the Bridge Loan which allows you to live in your existing home while you are building your Greenfab home. The Bridge Loan will not be due until your new home is finished or you sell your existing home.

What kind of warranty will my Greenfab home have?

Greenfab homes come with a one-year warranty on all structural work. We can also offer you an extended warranty at an additional cost. All applicable statute of limitations will apply for your state. In addition, we provide all of the product warranties, including a 15-year warranty on the roofing material.

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Prefab Construction

What is Prefab?

Prefab, short for prefabricated, is a general term used in the building industry to describe any construction process that takes place “off-site” or in a factory and is assembled on-site. As a group, prefab homes include everything from mobile homes to log cabins, panelized homes to modular homes. In addition to homes, prefabrication has been used to create office and industrial buildings, banks and schools.

Two primary building systems make up the majority of the prefabrication building industry; panelized and modular.

What is a panelized home?

A panelized home refers to a construction method where housing components, such as wall and floor sections, are prefabricated in a climate-controlled facility before being shipped to a home site. Component panel types include simple pre-cut floor, roof trusses and efficient structural insulated panels (SIPs).

What is a modular home?

A modular home refers to a construction method where housing components, such as entire rooms or individual modules, are constructed in a controlled factory environment. Individual modules are up to 90% complete and shipped from the factory to the home site. All walls, ceilings, stairs, appliances and some flooring are completed in the factory before shipment. Once all building materials arrive at the factory, some manufacturers can assemble modules in a single day. Typically a home can be constructed in a factory in under a week or two. Aside from any cost savings, modular homebuyers benefit from the short assembly time of their home – reducing any amount of weather damage or home site vandalism. Over the life of the home, modular homes save money because they are incredibly efficient.

Because of all the advantages to homebuyers, Greenfab primarily uses modular prefabricated methods to build our homes. There are some instances where a panelized home might make more sense in which case we can help you determine which process is best for your specific needs.

What are the advantages of a modular, Greenfab home?

Faster Construction Timeframe

As existing buildings are being deconstructed and foundations are being poured on your site, the modules of your home are being constructed off-site in the factory. This parallel development reduces the overall construction time by up to 30%. Modular homes can be built in 3-4 months from the time you receive your permit to the time you walk through the front door of your new home.

Less Cost

Parallel development also reduces labor charges through construction efficiencies and the term required for expensive construction loans. Reduced costs will also be achieved through: lower insurance costs, lower administration costs, and volume discounts on materials.

Better Quality

Modular construction results in a higher quality home. This is achieved through assembly line construction that leads to higher quality craftsmanship and quality control. Materials not exposed to environmental conditions, like in a traditional site built home, maintain their structural integrity and strength. Modular homes are built to the same local UBC/IBC codes as site-built homes, and by code, modular homes have to be built to a higher quality level than stick-built homes because they must endure the stresses of being transported (wind shear, vibration, etc).

Better Health

Because we build in a factory, our materials are stored indoors in a controlled environment eliminating the risk of mold, mildew, rust, and sun damage that can often lead to human respiratory problems. Normal «site-built» methods are always at risk from these threats

Better Sustainability and Efficiency

Modular fabrication is a more environmentally efficient way to build. Factory construction allows for precise cutting and use of materials, resulting in 50%-75% less waste as compared to site-built construction. That means that fewer materials end up in land fills. Modular building also lessens the carbon emissions that result from transporting different materials to a construction site.

Traditional Financing

Modular homes are financed using conventional mortgage products, and are viewed exactly the same as site-built homes in construction codes and zoning laws.

Are Greenfab homes considered mobile homes or manufactured homes?

No. Manufactured and mobile homes are one-in-the-same and are not considered to be permanent structures. Greenfab modular homes are permanent structures and considered to be stick-built homes manufactured off-site. Unlike a manufactured/mobile home, which can be moved multiple times, a modular home only moves once from the factory to your site.

Unlike manufactured/mobile homes, which are permitted by the Department of Housing and Urban Development (HUD), modular homes must conform to the same local UBC/IBC building codes as a traditional site-built home. Manufactured/mobile homes are built on a non-removable steel chassis. Sections are transported to the building site on their own wheels and segments are not always placed on a permanent foundation, making them more difficult to re-finance. Building inspectors check the work done locally (electric hook up, etc.) but are not required to approve the structure. Manufactured/mobile housing is generally less expensive than site built and modular homes and can decrease in value over time.

What is a Module?

A module is a standardized, three-dimensional component that is attached to other modules to compose a prefabricated or modular home. Think of it like building with legos. Individual modules can be up to 15 ft wide by 68 ft long. Each module is designed to ship on specialized trailers. Except for special circumstances, the sizes of each module fall within the Transportation Department's standard shipping guidelines, so they do not need any special permits or pilot cars when transported on the road to your site.

How complete is the house when it is delivered?

We deliver your house to your site 80-90% complete. The house is delivered with most of the finishes installed, including the tile, countertops and paint. We install the windows and doors in the factory, along with the cabinets, plumbing fixtures, appliances and lights. After the house is delivered and bolted together, there are a few remaining items that need to be taken care of. We handle these items for you on site.

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Quality and Safety

Are the Modules strong?

Yes. Because the modules are built off-site and need to be transported and installed, they must actually meet more stringent building codes than stick-built homes. Our homes are constructed with double stud and joist bracing in the walls and floor.

If the roof is flat, won't water pool and leak?

No. Even flat roofs are slightly pitched and sloped to provide appropriate drainage. The roof is also tightly sealed with an impenetrable material (TPO) to help protect your home from water damage.

Do Greenfab homes stand up in earthquakes or hurricanes?

Yes. Greenfab homes are built to the same UBC/IBC building codes as a traditional site-built home. In fact, our homes are structurally built above these standards so that they survive the transportation and installation process. 

Will a Greenfab roof support snow?

Yes. Snow loads are determined by local codes and Greenfab can design and engineer homes for any climate condition.

Are modular homes healthier than other homes?

Yes. Using an off-site construction process in a dry, controlled environment, guarantees that the materials in your home are mold and bacteria free. Many respiratory health problems arise from moldy and damp materials used to construct traditional homes. This happens when materials are stacked and stored on site and exposed to a variety of environmental conditions such as rain, wind and sun. Once these materials are framed up and secured together, they are sealed up with drywall and never allowed to fully dry. Modular homes will never be exposed to these factors.

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Care and Maintenance

How do I care for my Greenfab home?

It is relatively easy to maintain the outside and inside of your new home. We are currently working on an “Owner and Maintenance” manual that will give you an easy step-by-step process.

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Customer Service

How do I contact Greenfab?

Our corporate office is located in Seattle, Washington

To order literature, call 1-877-846-4445

For all other inquires, call 1-877-846-4445, or write us

6532 Phinney Ave N
Seattle, Wa 98103

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Business Opportunities

Do you work with developers?

Yes. We work with developers who share a common vision about healthy, eco-friendly development, on both large and small scale projects. Please contact us if you are interested in partnering. We offer a full set of services to developers including:

  • Project Feasibility
  • Design and Engineering
  • Sustainability
  • Construction Management
  • Sales and Marketing
  • Green Certification

Please visit our Services page to learn more