10+ Years of Experience
ADU Builders
Issaquah
Maksymov Brownstone LLC is the ADU builder Issaquah homeowners call when the site is tight, the grade is working against you, and the plan still has to make sense on paper before construction begins.
We design and build custom ADUs, garage conversions, and basement apartments that fit the house and the lot instead of forcing a stock layout.
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Our Expertise
Expert ADU Builder in Issaquah: Maximize Your Property
An ADU in Issaquah can do real work for the property. It can create rental income, give family their own space, or turn underused square footage into something that pays back every month. The city now allows up to two ADUs on one lot, which opens more options than many owners expect. But Issaquah is not a flat, simple market. Water and sewer availability, septic review where applicable, and critical-area limits tied to streams, wetlands, steep slopes, landslide zones, and coal mine hazard areas can change the budget before framing starts.
What We Build in Issaquah
- Custom Detached ADUs
- Attached Accessory Dwelling Units
- Garage-to-ADU Conversions
- Basement ADU Apartments
- Multi-Generational Living Suites
- Turnkey ADU Construction
- Custom design for your lot
- Full-service contractor support
Building an ADU in Issaquah can feel overwhelming
Planning an ADU in Issaquah comes with its own set of challenges — zoning rules, permits and tight budgets. Many homeowners feel uncertain about where to begin. With experienced accessory dwelling unit builders who know Issaquah, the path forward becomes much clearer.
Where Do I Even Start?
The Issaquah ADU process — design, city approvals, construction — can feel impossibly complex for first-time builders.
Hidden Costs
Unexpected fees and vague quotes leave homeowners over budget before construction even begins.
Delays & Unreliable Contractors
Missed deadlines and poor coordination drag projects on for years — costing time and money.
Lack of Clear Communication
Homeowners are often left in the dark, unsure of progress or next steps on their project.
Issaquah ADU specialists who turn a complex process into a clear, simple plan.
What We Build
ADU Services in Issaquah
Homeowners in Issaquah looking for a trusted ADU builder near me choose a team that understands local site conditions and Issaquah city code. We deliver new builds and ADU remodels tailored to your specific lot, goals and budget.
Basement Conversion
Transform your underutilized basement into a self-contained ADU — fully legal, permitted, and designed for comfortable living in Issaquah.
Garage Conversion
Convert your attached or detached garage into a stylish, code-compliant ADU unit in Issaquah — often the fastest and most cost-effective path.
Attic Conversion
Maximize your Issaquah home's vertical space with a beautifully finished attic ADU — ideal for rental income or a private guest suite.
Our Advantages
Why Issaquah Homeowners Trust Our ADU Building Team
Local Issaquah ADU Contractor
Our team handles Issaquah permits and city-specific approvals daily, keeping projects compliant and moving without costly delays.
Upfront Cost Estimate
We break down the full build price before any work begins, so you can plan your budget confidently with no hidden fees.
Organized Project Timeline
From design to final inspection, your Issaquah ADU stays on schedule through every phase of the build process.
Quality-Built ADU Homes
Every Issaquah ADU we build uses durable materials and careful workmanship that meets local standards and stands the test of time.
Responsive Client Support
Quick replies and regular updates keep Issaquah homeowners informed at every stage, from first consultation to final handover.
Proven Issaquah ADU Builder
Homeowners in Issaquah choose us for consistent results, completed projects and a track record that speaks for itself.
How It Works
Our Process
Site Assessment
We review lot size, setbacks, utilities, slope, and site limits first, because in Issaquah the land usually decides the smartest ADU path.
Custom Design
Then we build a layout that fits the existing house, preserves privacy, and works with grade changes instead of pretending every site is flat.
Permitting
We prepare the permit package, coordinate city review, and address water, sewer, septic, and critical-area requirements before they turn into delay.
Construction
From structural work through framing, insulation, utility tie-ins, and finishes, our crew builds the ADU in a tight sequence with close field control.
Turnkey Delivery
After inspections pass, we complete the final details and hand over a finished ADU ready for family use, guests, or long-term rental.
Site Assessment
We review lot size, setbacks, utilities, slope, and site limits first, because in Issaquah the land usually decides the smartest ADU path.
Custom Design
Then we build a layout that fits the existing house, preserves privacy, and works with grade changes instead of pretending every site is flat.
Permitting
We prepare the permit package, coordinate city review, and address water, sewer, septic, and critical-area requirements before they turn into delay.
Construction
From structural work through framing, insulation, utility tie-ins, and finishes, our crew builds the ADU in a tight sequence with close field control.
Turnkey Delivery
After inspections pass, we complete the final details and hand over a finished ADU ready for family use, guests, or long-term rental.
Portfolio
Recent ADU Projects in Issaquah
University District Seattle Kitchen Renovation
Client Reviews
What Our Clients Say
"I recently had the pleasure of working with Ihor on a remodeling project for my home, and I couldn't be happier with the results. From start to finish, Ihor demonstrated exceptional professionalism, skill, and attention to detail. Every concern we raised was addressed promptly, and the final result exceeded our expectations. Our new ADU looks incredible and was delivered exactly on time."
Jenny Lian
2 weeks ago
Return on Investment
Why an ADU Is a Smart Investment in Issaquah
Rental Income
In Issaquah, a well-built ADU can generate $1,800–$3,200 per month. This consistent income helps offset the initial build cost, making your project financially sound over time.
Increase Property Value
Adding a permitted unit in Issaquah can raise your home's value by $150,000–$300,000. With skilled accessory dwelling unit builders, this becomes a strong long-term gain.
Flexible Living Space
Build extra space for aging parents, adult children or a private office in Issaquah. These custom homes on your property offer flexibility while keeping full ownership.
Where We Work
Serving Issaquah and Surrounding Areas
We serve homeowners across King County. Based in Seattle, with projects completed throughout the greater metro area.
About Us
Issaquah's Leading Custom ADU Builders
Maksymov Brownstone LLC brings 17+ years of hands-on construction experience to ADU work, and Issaquah is the kind of city where that experience saves people from expensive mistakes. A lot may look straightforward until permit review pulls in slope setbacks, drainage limits, utility questions, or critical-area buffers.
The city's current ADU standards allow two ADUs on one lot, but some projects also need water and sewer availability confirmation and septic approval before the permit set is complete. We are a licensed and bonded team that handles ADUs, garage conversions, basement conversions, and additions with the same field-first approach.
FAQ
Frequently Asked Questions About ADU Remodeling in Issaquah
Planning an ADU project in Issaquah comes with many questions about permits, timelines and budget. Below we cover the most common concerns homeowners have. Feel free to reach out for a personalized consultation and clear guidance specific to your Issaquah property.
How much does it cost to build an ADU?
The cost depends on size, structural work, utility tie-ins, site prep, and finish level. A basement conversion usually lands lower than a full garage conversion or a new detached build because the shell already exists. In Issaquah, slope conditions, utility confirmation, and critical-area review can move the number fast. We price from the real property, not online averages.
Do I need permits for an ADU in Issaquah?
Yes. ADU work goes through the city permit process, and the submittal package can include water and sewer availability information plus septic approval when applicable. Depending on the site, the project may also need extra documentation tied to streams, wetlands, steep slopes, or other critical areas. We handle that path from submittal through inspection.
Can I build an ADU on my specific lot?
Maybe, but we do not guess from parcel photos. We check setbacks, utility access, lot layout, and whether the property is affected by wetlands, streams, steep slopes, landslide zones, or coal mine hazard areas. In Issaquah, those constraints can matter more than the square footage on paper.
Why choose our company as your ADU builder?
Because ADU projects usually break at the handoff points. Design says one thing, permitting says another, and the field pays for the mismatch. We keep the process under one roof from feasibility through final delivery. That cuts miscommunication, protects the budget, and gives you a cleaner result.
Ready to Build Your ADU in Issaquah?
Start with a free consultation — no pressure, just honest answers about your project.
Committed to superior quality and results
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Contact us
maksymov.brownstone@gmail.com
Phone
(425) 800-7663
Mon – Fri
9 am – 6 pm
Saturday
9 am – 1 pm