Accessory Dwelling Units (ADUs & DADUs) for Washington
Accessory Dwelling Units (ADUs) and Detached Accessory Dwelling Units (DADUs) are one of the fastest-growing housing solutions in Washington State. Homeowners are building backyard ADUs to generate rental income, create multigenerational housing, or add long-term property value without purchasing additional land.
Near East Sheds is a Washington-based ADU builder specializing in custom ADU and DADU construction. We design and build backyard ADUs, detached ADUs, garage conversion ADUs, and small backyard homes, constructed on-site to meet local zoning, permitting, and building code requirements.
From feasibility analysis to ADU construction, our team helps homeowners navigate the entire process with clarity, transparency, and craftsmanship.
ADUs & DADUs Transform your backyard into income or family space.
ADU vs DADU — What’s the Difference?
An Accessory Dwelling Unit (ADU) is a secondary residential unit built on the same property as a primary home. ADUs may be attached to the main house, created through garage conversions, or built as additions.
A Detached Accessory Dwelling Unit (DADU), often called a backyard ADU, is a freestanding residential structure located behind the main home. DADUs provide greater privacy and flexibility and are one of the most popular ADU types in Washington.
Both ADUs and DADUs include kitchens, bathrooms, sleeping areas, and independent utility connections, making them legal dwelling units rather than temporary structures.
Homeowners choosing between an ADU or DADU typically consider lot size, zoning regulations, budget, privacy needs, and long-term rental goals.
Why Near East Sheds Is a Trusted ADU Builder
Near East Sheds is not a prefab supplier or kit installer. As part of Cipro Group, we are a custom ADU builder company focused on long-term residential construction.
ADU & DADU Design Options
Backyard ADUs can be designed as studio ADUs, one-bedroom ADUs, or two-bedroom ADUs depending on zoning allowances and homeowner goals.
Popular ADU design options include:
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Studio ADUs for rental income
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One-bedroom DADUs for long-term tenants
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Backyard office ADUs with future rental conversion
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Aging-in-place ADUs for family members
Design priorities often include natural light, storage, sound separation, accessibility, and privacy
ADUs as Rental Income Properties
Many homeowners build ADUs to generate passive rental income while maintaining ownership of their primary residence. ADUs can be rented long-term or, where allowed, used as short-term rentals.
Beyond rental income, ADUs provide flexibility by allowing families to house relatives or create private living space without moving.
Because ADUs are built on existing property, they offer lower risk compared to purchasing standalone rental properties.
Permits, Utilities & Timeline
The ADU construction process involves coordination with local permitting departments, utility providers, and inspectors. Timelines vary by city and project scope, but most ADU projects progress through planning, permitting, construction, and final inspection.
Utility connections for water, sewer, and electricity are key components of ADU construction and are addressed early to prevent delays.
Near East Sheds supports homeowners throughout the ADU permitting and construction process, helping keep projects organized and compliant.
ADU and DADU
Frequently Asked Questions
Does Near East Sheds handle ADU permits?
Yes, we assist throughout the permitting and construction process.
Do ADUs increase home value?
In most cases, ADUs add livable square footage and rental potential.
How much does it cost to build a DADU?
Costs vary depending on size (square footage), finishes, and site conditions (like slope or access). However, DADUs are generally more cost-effective than buying a new property. Contact us for a quote based on your specific lot.
Do I need a permit for a backyard cottage?
Yes. Unlike a simple tool shed, a DADU is a living space. It requires building, electrical, and plumbing permits. Near East Sheds handles all permitting applications for our clients.
Can I sell my DADU separately from my house?
In some jurisdictions, “condominiumization” of DADUs is allowed, enabling you to sell the unit separately. We can help you check the current zoning regulations in your city to see if this is an option for you.
