Your Local Home Remodeling Experts
22525 SE 64th Pl, Ste 2259, Issaquah, WA 98027
Your Local Home Remodeling Experts
22525 SE 64th Pl, Ste 2259, Issaquah, WA 98027
Your Sammamish Home Has More Potential Than You Think
Building an ADU in Sammamish has never made more financial sense than right now.
Thanks to Washington State House Bill 1337, the rules that held most Sammamish homeowners back are completely gone. You no longer need to live on your property to rent out an ADU. You can now build two ADUs on a single residential lot. Impact fees are capped at half of what they used to be. And Sammamish is one of the cities that exempts ADUs from school impact fees entirely, saving you thousands of dollars compared to other Washington cities.
Sammamish homeowners already know the value of smart investments. The median home here is one of the highest in the entire country. And that same premium market that makes your home valuable also makes an ADU on your property an exceptionally powerful financial asset. That extra space at the back of your lot, that oversized garage, that unfinished basement — all of it is now a genuine opportunity. An opportunity to house aging parents with privacy and dignity. An opportunity to give an adult child their own space while keeping family close. Or simply an opportunity to generate $1,800 to $3,200 a month in rental income from a property you already own.
American Remodeling Experts has been building ADUs across Sammamish since 2017. Amir personally visits every property before a single plan is drawn. He looks at your lot, your existing structure, your goals and your budget and tells you exactly what is possible and what it will realistically cost before you spend a single dollar.
Here is something that the most forward-thinking Sammamish homeowners already understand. Land on the Eastside is finite. Sammamish sits on one of the most desirable and supply-constrained plateaus in the entire Pacific Northwest. There is no more land being created here. As the greater Seattle metro continues to grow, as Microsoft, Amazon and Google continue to expand their presence, and as housing supply continues to lag far behind demand, the value of every buildable square foot on your Sammamish property is going to increase.
Cities like San Francisco, New York, Vancouver and Tokyo figured this out decades ago. Homeowners who built ADUs early captured enormous value as land became scarcer and rental demand intensified. Sammamish is on the same trajectory. The difference is that you are still early enough to act before the opportunity becomes obvious to everyone.
Building an ADU on your Sammamish property today is not just a smart move for right now. It is one of the best long-term investments you can make in one of the most supply-constrained real estate markets in the country. And with Washington State law now firmly on your side, there has never been a better time to move forward.
Under Washington State’s current rules, you can build up to two ADUs on a single residential lot alongside your primary home, creating up to three separate living units on one property. Here is what we build most in Sammamish.
Detached ADU (Backyard Cottage): A completely separate structure built on your lot, typically in the backyard. This is the most flexible and most valuable type of ADU, giving whoever lives there complete independence and privacy. Most Sammamish detached ADUs range from 400 to 1,000 square feet and include a full kitchen, bathroom, bedroom and living area.
Attached ADU: An addition to your existing home that creates a separate living unit with its own entrance. Often built as a side addition or above a garage. More private than a basement conversion and less expensive than a fully detached structure.
Garage Conversion ADU: The most cost-effective way to add an ADU to your Sammamish property. If you have a garage that is mostly used for storage, we convert it into a beautifully finished living space with full kitchen, bathroom and bedroom. The structure is already there. We transform what is inside.
Basement ADU: If your Sammamish home has an unfinished or underutilized basement, converting it into a legal permitted ADU is often the smartest investment you can make. Lower construction costs, no new footprint required, and the space is already there waiting to be used.
Junior ADU (JADU): A smaller unit of up to 500 square feet created within the existing walls of your home, typically from a bedroom with its own entrance. The most affordable ADU option and ideal for housing a family member while maintaining a connection to the main home.
This is the most important question and the honest answer is: it depends on your specific lot. Not every property can support a detached ADU, and the size you can build varies significantly based on your zoning, lot coverage and setbacks. Here is a general rule of thumb to help you understand where you stand before you call us.
Lot size and coverage: In Sammamish, your total lot coverage including the existing home, garage and any new ADU cannot exceed the maximum allowed for your zone. Most residential zones allow 40 to 50% lot coverage. If your lot is already heavily built out, a detached ADU may not be possible but a basement or attached ADU often still is.
Setbacks: A detached ADU in Sammamish must sit at least 4 feet from the rear and side property lines. If your backyard is tight, this can limit the size or position of a detached structure significantly.
ADU size limits: In Sammamish, a detached ADU can be a maximum of 1,000 square feet. An attached ADU can be up to 50% of the size of your primary home or 1,000 square feet, whichever is larger.
Septic systems: If your property is on a septic system rather than city sewer, the system must have sufficient capacity to support an additional unit. We evaluate this as part of our first visit and coordinate all required inspections if an upgrade is needed.
Tree protection: Sammamish has strict tree protection requirements. If your backyard has significant trees, their protection zones may limit where an ADU can be placed. Amir knows how to design around these constraints creatively.
The honest truth: The only real way to know what your specific property can support is to have someone who knows Sammamish’s codes walk your lot in person. That is exactly what Amir does on the first visit, completely free, with no obligation. He will tell you exactly what you can build, what size, what it will cost and what the realistic return on that investment looks like.
Do not guess. Let Amir come take a look.
Schedule your free ADU feasibility visit in Sammamish today.
Let’s talk about the real numbers for a moment. Because when you compare an ADU investment to most traditional investment options available today, the case becomes very hard to ignore.
A detached ADU in Sammamish generating $2,500 a month in rental income produces $30,000 a year in gross income from a property you already own. That is a 6 to 10% annual cash return on a $300,000 to $500,000 investment, in a real asset that is also appreciating in value. Compare that to the stock market, savings accounts or most traditional investment vehicles and the numbers speak for themselves.
But here is what makes it different from every other investment: you feel it every single day. This is not a line on a brokerage statement. This is a beautiful new structure on your property that houses your aging parent with dignity, gives your adult child independence, or generates income that pays for your kids’ school, your vacations or your mortgage. The financial return and the lifestyle upgrade happen at the same time.
And unlike most investments, a Sammamish ADU also protects you against inflation. Rents on the Eastside have consistently risen with the cost of living. As Sammamish becomes more desirable, as the tech sector keeps growing and as land supply stays constrained, your ADU becomes more valuable every single year. You are not just earning income today. You are building a permanent asset in one of the strongest real estate markets in the country.
The families who built ADUs in San Francisco in the 1990s, in Vancouver in the 2000s, in Seattle in the 2010s all say the same thing today. Best decision we ever made.
Sammamish is at that same point right now. The question is whether you move early or wait until everyone else has figured it out too.
We build ADUs throughout Sammamish including Sahalee, Trossachs, Aldarra, Beaver Lake, East Lake Sammamish, Pine Lake and Klahanie. If you live in Sammamish and are wondering whether your property can support an ADU, the best thing you can do is have Amir come take a look. The first visit is free and you will leave with a real answer and a real plan.
Schedule your free ADU consultation in Sammamish today.
When you work with American Remodeling Experts on an ADU you get more than a contractor. You get Amir designing your addition personally, a dedicated project manager on your job every single day, and a network of local architects, designers, engineers and vendors who work together to deliver an addition that looks and feels like it was always part of your home.
We handle all City of Sammamish permits from start to finish. You never have to deal with the city, the paperwork or the inspectors. We do it all, and we do it faster than most because we know the local process inside and out. For homes on septic systems, we also coordinate all required septic tank capacity evaluations and upgrades as part of your project so there are no surprises and no delays.
You follow every stage of your project through our client mobile app with daily photos and real-time updates. You always know exactly what is happening in your home, whether you are there or halfway around the world.
Every ADU project is different, which is why Amir always visits your property before giving you a number. That said, here is a realistic sense of what Sammamish homeowners typically invest.
A Junior ADU typically ranges from $50,000 to $100,000 and involves converting existing interior space within your home.
A garage conversion ADU typically ranges from $80,000 to $150,000 depending on the size of the garage and level of finish. This is the most cost-effective way to add a fully self-contained unit to your property.
An attached ADU typically ranges from $150,000 to $250,000 depending on size and scope.
A detached ADU typically ranges from $300,000 to $500,000 depending on size, design, site conditions and finishes. Sammamish’s rolling terrain and wooded lots can add engineering and grading costs and Amir is known for finding ways to minimize these through smart design and positioning.
The financial case is compelling. A detached ADU in Sammamish can generate $1,800 to $2,800 per month in rental income. That is $21,000 to $33,000 per year from a property you already own. Thanks to HB 1337, ADU impact fees are capped at 50% of what is charged on the main home. And Sammamish exempts ADUs from school impact fees entirely, a saving that other Washington cities do not offer.
Add to that the long-term land value appreciation that comes with owning a multi-unit property on the Eastside, and the numbers become very compelling very quickly.
No hidden fees. No surprises. No games. You will know exactly what you are paying for before a single wall is touched.
Can I really rent both my main home and the ADU? Yes. Washington State’s HB 1337 eliminated the owner occupancy requirement entirely. You can rent both units simultaneously without living on the property. This applies to Sammamish and all cities in Washington’s urban growth areas.
How many ADUs can I build on my Sammamish property? Under HB 1337 you can now build up to two ADUs on a single residential lot in addition to your primary home. That means up to three separate living units on one property.
Do I need a permit to build an ADU in Sammamish? Yes. All ADU construction requires permits. We handle the entire permitting process on your behalf from start to finish, including any septic system evaluations if your property requires them.
How long does it take to build an ADU in Sammamish? Most ADU projects take 4 to 8 months from the first design meeting through final inspection depending on type and complexity. We give you a detailed schedule before we break ground and you track everything in real time through our client mobile app.
My lot is sloped or has trees. Can I still build a detached ADU? Very often yes. Amir has built ADUs on some of the most challenging lots in Sammamish. He knows how to design around slopes, trees and setback requirements in ways that minimize cost and maximize the result.
Will an ADU increase the value of my Sammamish home? Yes, significantly. A legal permitted ADU adds substantial value to your property both as an income-generating asset and as additional livable square footage. On the Eastside where land is scarce, home values are high and rental demand is strong, a well-built ADU is one of the best investments you can make. The cities that figured this out earliest, like San Francisco and Vancouver, saw ADU properties outperform the broader market by a significant margin. Sammamish is heading in the same direction.
Do you handle all trades? Yes completely. American Remodeling Experts coordinates plumbing, electrical, framing, roofing, insulation, drywall and finishing under one roof. You have one point of contact for everything.
The opportunity has never been better. Washington State law is on your side. The Eastside rental market is strong. Land on the Eastside is not getting any cheaper. And American Remodeling Experts has been building ADUs across Sammamish since 2017 with the experience, the local knowledge and the creative problem-solving to make your project work beautifully.
Schedule your free in-home estimate today and let Amir show you exactly what is possible on your Sammamish property.
No pressure. No obligation. Just a genuinely exciting conversation about what your property can become.
We cannot wait to see what we can build together.
The conversation around ADUs has completely changed in the last two years. Here is what we hear from Sammamish homeowners every single week.
Some are building for family. My parents are getting older and I want them close but not in our main living space. My adult child is moving back and we both need privacy. My in-laws visit for months at a time and we need a proper space for them.
Some are building for income. I want to generate rental income from my property without selling or moving. The Eastside rental market is strong and my lot has room. $1,800 to $3,200 a month in rental income from a space I already own is a serious number.
Some are building for flexibility. I want a home office completely separate from the house. I want a gym, a studio or a guest suite that feels like a proper retreat.
And here is the one that changes everything for a lot of people: Washington State law now allows you to rent both your primary home and your ADU at the same time, without living on site. The owner occupancy requirement that used to block most homeowners and investors is completely gone under HB 1337. You have total flexibility with what you do with your property.
Sammamish sits on one of the most land-constrained plateaus on the Eastside. The rolling terrain, tree protection requirements and hillside lots create unique challenges for ADU construction that most contractors simply are not equipped to handle. Amir has built ADUs across Sammamish’s most challenging properties and he knows exactly how to navigate the site-specific complexities that drive up costs unnecessarily when the wrong contractor is involved.
He knows which lots in Sammamish can support a detached ADU and which ones are better suited for a garage conversion or basement build. He knows how to position an ADU to maximize privacy for both the main home and the new unit. He knows which permits are genuinely required and which ones can be streamlined, and he is known for eliminating the unnecessary permitting costs that add months of delay and thousands of dollars to projects unnecessarily.
He works with local architects, designers and structural engineers who understand Sammamish’s specific codes, and he coordinates all trades including plumbing, electrical, framing, roofing, insulation, drywall and finishing under one roof. You have one point of contact from the first visit to the final walkthrough.
And before a single permit is filed, Amir creates a full 3D rendering of your ADU so you can see exactly what it will look like on your property. Sammamish homeowners consistently tell us this is one of the most exciting parts of the process, seeing their backyard or garage transformed into a beautiful living space before construction even begins.
At American Remodeling Experts, every ADU starts with a vision and we make that vision visible before construction begins. Using our 3D design process, you will see exactly what your new addition will look like, from tile selection to vanity placement to lighting.
We work with local designers and local vendors to source the best materials at the best prices, and we do not start building until you love every detail of the design.
See your new home addition in 3D before we build it.
Feel free to contact us via phone or stop by at your convenience. We guarantee a response to all queries within a 24-hour timeframe on working days.
