Maksymov Brownstone LLC

Seattle DADU construction services

DADUs (Detached Accessory Dwelling Units) are increasingly popular due to their versatility, offering homeowners a range of benefits. This unit adds property value, creates flexible living or rental spaces and reflects modern design and sustainability. Maksymov Brownstone LLC is the leading DADU builder in the Greater Seattle Area, providing you with additional comfort, functional solutions and code-compliant construction as well as high-level craftsmanship and a customized approach to each home. We guarantee trust, high-quality craftsmanship and seamless project delivery.

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Why choose DADUs for comfortable living

Homeowners in Seattle choose to build DADUs because of a desire to create an independent, flexible living space for the family, generate rental income and increase property value. DADUs are a smart, flexible and sustainable housing solution that fits urban zoning regulations in Seattle. By ordering DADU building services from our team, you gain practicality and lifestyle improvements while we manage every stage, including permits and construction.

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Tailored DADUs for your home

A DADU stands for Detached Accessory Dwelling Unit. It is a separate, stand-alone residential structure built on the same lot as an existing single-family home. Unlike an attached ADU or an interior conversion (like a basement ADU), a DADU is fully independent and does not share walls with the primary house.

Maksymov Brownstone LLC DADU builder in Seattle provides full-scale DADU construction solutions, starting from design, permitting and site preparation to high-quality building and finishing. Our team of professional designers provides licensed designers to ensure code compliance, coordination and quality construction.

Dadu construction
Dadu kitchen

Exceptional DADU designs built with precision

Maksymov Brownstone LLC DADU builder delivers custom detached accessory dwelling units, from thoughtful design through expert building and finishing. The company offers tailored solutions that combine smart layouts, contemporary aesthetics and sustainability. In our arsenal of completed projects are backyard cottages, guest houses and rental units. Our team can boast of high craftsmanship, attention to detail and adherence to Seattle codes. We bring reliable and innovative solutions into reality, showing how each DADU enhances both property potential and lifestyle.

Our expert team specializes in DADU building, providing you with additional living space and rental income. Moreover, remodeling your existing structure is another area of our expertise, transforming homes and commercial spaces into functional and aesthetically pleasing spaces. We are ready to turn your vision into reality with top-grade craftsmanship. By choosing Maksymov Brownstone LLC you’re making a smart investment in your property, increasing its value and enjoying the convenience and financial benefits of a functional living space.

Our DADU construction roadmap

Dive into a step-by-step DADU construction process from initial consultation to final delivery. We guide clients through each construction stage.

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  • 01

    Consultation & planning

    Maksymov Brownstone LLC starts the planning process by understanding the homeowner’s goals, evaluating the property and defining project scope, ensuring a design that fits your space, budget and lifestyle needs.

  • 02

    Design stage

    At this stage, the design team creates detailed plans that combine style, function and code compliance. We offer a collaborative approach that brings the homeowner’s vision to life with precision and creativity.

  • 03

    Documentation & approval

    Maksymov Brownstone LLC obtains all required permits and city approvals in accordance with Seattle’s land-use and zoning regulations for accessory dwelling units. We remove complexity for the client and ensure a smooth, compliant project start.

  • 04

    Construction & completion

    At this stage, we provide our customers with expert craftsmanship, quality materials and efficient project management. Our team of professionals maintains transparency and care through every construction stage until completion.

High-quality DADUs built with innovation, integrity and craftsmanship you can trust
We do more than just DADU construction

We do more than just DADU construction

Maksymov Brownstone LLC DADU contractor in Seattle provides a range of complementary home renovation services, including basement remodeling, custom cabinetry solutions, garage conversion and others. Our company provides high versatility, consistency in quality and the convenience of working with one trusted team for all renovation needs.
Looking for the most effective and creative ways to remodel your home space? Contact Maksymov Brownstone LLC for expert guidance or a free consultation to get started on your next home improvement project.
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5 average (3 reviews)

What our customers say

J
J Jenny Lian
2 months ago

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 dedication.

J
J John Nye
2 months ago

This company is amazing. Their team of specialists at remodeling proved to be hard working, determined and perfectionists. The assessment of needs was simple and the quote was more reasonable than expected, and the final invoice had no surprises. There are no risks in engaging this company.

S
S Soledad Guerrero
2 months ago

The experience was so positive that we’re already thinking ahead to our next project with them: remodeling all of our bathrooms. Knowing how dedicated they are to their craft gives us complete confidence in choosing them again.

Gallery MBR
Gallery

Here are some photos of the projects to inspire and help you create your own project. If you are looking for ideas, you're in the right spot!

Portfolio MBR
Portfolio

Visit our portfolio to explore our work and gather inspiration and ideas for your projects.

Ideas and inspiration by Maksymov Brownstone

ADU vs DADU: maximizing your property potential
ADU/DADU
Apr 6, 2026
ADU vs DADU: maximizing your property potential

As demand rises, understanding DADU vs ADU becomes key for making the right investment decision.

Frequently asked questions

This section covers the most common questions that clients ask about DADU construction services. If you have any additional questions, contact our support team for more information.

How much does it cost to build a DADU?

The key factors that influence pricing include size, design complexity, materials and site conditions. Custom features, premium finishes and complex layouts can increase costs. Maksymov Brownstone LLC provides transparent estimates and tailored solutions, helping customers balance quality, functionality and budget while delivering a perfectly crafted, fully compliant DADU.

How long does it take to build a DADU?

Building a DADU typically takes 4 to 8 months, depending on design complexity, site conditions and permit approval timelines. Maksymov Brownstone LLC manages every stage, starting from planning and permits to construction and finishing, while ensuring a well-organized, efficient process. Our expertise helps minimize delays while delivering a high-quality, complete solution on schedule.

How do I know if I’m zoned for an ADU or DADU?

Seattle has specific zoning regulations for DADUs. Zoning rules determine whether your property is eligible for an ADU (attached) or DADU (detached). In Seattle, most single-family residential zones allow one ADU or DADU per lot but requirements vary based on lot size, setbacks, height limits and neighborhood overlays. Maksymov Brownstone LLC helps clients verify property eligibility. The team or partnered architects can guide homeowners through city zoning rules and necessary documentation.

How many square feet can my ADU or DADU be?

In the Seattle area, the maximum size for an ADU or DADU depends on lot size and design. Typically, a DADU can be up to 1,000 sq. ft., while an ADU may be slightly smaller. Other factors affecting final size include setbacks, height limits and parking requirements. Maksymov Brownstone LLC helps clients design functional, code-compliant units that maximize space efficiently.

Can a DADU be used as a rental property?

Yes, in Seattle, a DADU can typically be rented out, providing additional income for homeowners. To do so, it must meet all building codes, safety standards and occupancy regulations, including proper permits and utility connections. Maksymov Brownstone LLC ensures every DADU is fully compliant and ready for safe, legal use as a rental property.