We have the experience, personnel, and resources to make your ADU project run smooth. We can ensure your job is done right and on time.

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ADU Clackmas

Tiny homes aren’t the only homes increasing in Clackmas. Accessory Dwelling Units (ADUs) are rather popular and almost everybody can support, especially as our culture shifts from single-generational homes back to multigenerational houses. You may recognize ADUs by their more general names, like mother-in-law apartment or condos, prefab guest house with bathroom, backyard studios, granny-flats, ADU houses, studio apartments or guesthouse, or tiny house. Each city has their own zoning laws and allows for building a Clackmas ADU unit.

If you do not already understand, Stanlees Home Improvements is a high quality, full service, earth friendly ADU builder in Clackmas, OR while likewise focusing on energy efficient brand-new house and Clackmas ADU renovate construction. We are a family owned & operated local company with impeccable referrals, and a triple A credit ranking. We are members of the Better Business Bureau with high scores, and are a Qualified Lead Safe business. We constantly use totally free quotes and on-time, on-budget.

Clackmas ADU Contractor Services

ADU Pre Construction

We Are A Full Service ADU Contractor. Determine whats needed before you start your ADU project.

ADU Construction Management

As a full service ADU Builder, it's important to understand the construction activities when building an ADU unit.

After Construction

Find out what to expect with all post construction activities for building an ADU home

The People

Highly Trained Staff To Install Your ADU Unit Right The First Time. You can trust us and our long list of satisfied customers to handle your next project professionally

We Provide

We maintain a long list of satisfied customers who took the time to review our past performance. Be sure to check our testimonials and see what others are saying.

Our Experience

With a complete line of residential ADU Building or ADU Remodel options, Stanlees Home Improvements has the experience and know-how to fix nearly any roofing issue you may have.

Economical and Trustworthy ADU Contractors in Clackmas, Oregon

Why Construct An ADU?

As the many names imply, ADU Clackmas spaces are private and different from the main section of the home. They’re also not limited to family members. Besides being a guesthouse or living area for household or a nanny, you can utilize it as an individual area if required. For example, as a as a private artist or writing studio, a movie or entertainment space for hosting football viewing parties, or an office.

Depending on the kind of ADU, they can have little visible effect on the outside of the existing principal home, and little to no effect on structure footprint. Nevertheless, there are lots of challenges related to the style of such systems, such as adding a different entryway, developing egress in a basement or top floor, handicap available restroom, and meeting proper square video and overlay zoning requirements. Aside from physical changes, ADUs may raise density and change the social character of the community.

Remember the majority of towns do not allow citizens to rent out ADUs. Laws change each year, so you need to contact your city initially. A “backyard cottage” sounds so non-threatening, who could possible oppose it?

ADU Contractor

Clackmas ADU Contractors

Rules For Adding a Clackmas ADU or Guesthouse:

You can have your guesthouse attached or separated to the main home depending on the size of your house lot. Clackmas may need guesthouses to be of the exact same architectural design and building materials of the main home. You and your next-door neighbors don’t wish to see a clashing design on a daily basis.

If you live in a neighborhood with a house owners association, talk to them too. Your HOA might not allow a ADU or guesthouse.

ADU Contractors Clackmas Oregon

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Clackmas ADU Builder

Here are some typical coding requirements for building an ADU in Clackmas:

  • Avalibility

    Only one guest house per lot.

  • Parking

    You need to provide one parking space for the ADU without eliminating from parking for the main home. You can not have 2 areas for the ADU.

  • Deminsion Guidelines

    The guesthouse can be 900 square feet at max and can not go beyond 50 percent of the gross floor area of the primary home.

  • The Garage

    A garage connected to the guest house is counted towards the the allowed square footage of the guesthouse. Follow the above link for extra rules if you have a large home and lot to begin with.

  • ADU Height

    The height of the guesthouse can not go beyond the height of the main house.

  • Address Guidelines

    It can not have a separate address from the primary dwelling.

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ADU Clackmas Contractors

Hire A ADU Clackmas Contractor?

Every contractor has their specialty, so make certain to discover one with experience in house additions and remodels. Stanlees Home Improvements has actually built lots of ADU homes. We have positive local contractor reviews on Google, Yelp, Angie’s List, and or Facebook. Never sign a contract without very first evaluating a detailed bid for the job, which must break out expenses into labor and products. We always consist of a start and end date and reasonable market estimate. Our Clackmas general contractors will always interact with you and let you know the number of individuals will be dealing with the house job and will be on your property, consisting of if any of the work will be subcontracted.

Residential ADU Clackmas Contractor

Connected or detached? Conversion or brand-new structure?

One aspect that will affect cost is whether it’s a connected (a basement system or addition) or detached (” DADU”) structure. Building a removed ADU is a lot like constructing a brand-new home, complete with structure, 4 exterior walls, and roof, so they can be more pricey than developing an attached ADU.


Do not let their diminutive size fool you; even little structures require style work from an architect, particularly given the style puzzles that limited area can present. Figure in 8-15% of construction cost for your ADU design, depending on level of style services required and your option of designer.

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ADU Builder Clackmas

Building and construction Expenses

Building costs vary quite a bit depending on the specifics of a task. We’re typically asked, “Exactly what does an ADU cost to construct per square foot?” But when building a Clackmas tiny house, we are basically squeezing all of the components of a larger home onto a smaller sized footprint, so per square foot expense fails as an useful measure. Rather, general cost is more useful. Normally speaking, the ADUs we develop (especially the stand-alone range) start at at sixty thousand dollars in building cost, with that cost increasing depending upon design choices about surfaces, components, and structure elements.

ADU Clackmas remodels can be costly. Contact us first to see if now is the correct time to re-finance your home mortgage and if a remodel or if an ADU is the very best choice. Doing so may offer you with additional money for house projects.

If you are looking for to buy a brand-new home with Clackmas guesthouse, we can combine you with among our vetted Clackmas general contractors. Our local Clackmas general contractor will assist you choose if and ADU is the very best alternative for you. We are here to assist!

Clackmas ADU Contractors Service Areas

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Additional Information For Clackmas, OR

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