Transforming Eastside and Greater Seattle Homes with
Custom Additions and ADUs
Mercer Island Home Addition Contractor & ADU Builder
Professional Builder
- Built by Local, Insurred Contractor
- Local Permit and Zoning Expertise
- All Fixtures, Materials, and Labor Included
- Personalized Home Addition Solutions
- Quality Materials and Sustainable Practices
- Experienced and Dependable Service
- Designing and Project Planning
5 Star Rated Mercer Island Construction Company
14
Years of
Experience
+100
Completed
Projects
Professional Addition & ADU Contractor
in Bellevue, WA
What’s Included in Our Home Additions and ADUs Services
ADU Builder (Accessory Dwelling Unit) Services: Increase your property’s value with BLC Remodeling’s ADU services. We specialize in both attached and detached ADUs, ensuring compliance with Seattle’s housing laws. Whether for additional income or extra living space, our team guides you from design to completion, making your property more functional and valuable.”
Home Addition Services: Expand your living space with BLC Remodeling’s home addition services. From room extensions to custom designs, we tailor solutions to meet your needs. Our team ensures seamless integration with your existing structure, enhancing both aesthetics and functionality and providing comprehensive support from design to construction.
- Garage Conversions
- Sunrooms
- In-law Suites
- Guest Suites
- Home Offices
- Basement Conversions
- Second Story Additions
- Kitchen Extensions
- Bathroom Additions
- Detached ADUs
- Attached ADUs
- Energy-Efficient Upgrades
Let's Talk About Your Remodeling Project
Complimentary Estimate and Expert Guidance from experienced Professionals.
Other Services in your Area
Our ADU and Addition Services
Attached ADUs
These units are directly connected to your existing home, providing rental income or extra family space. We specialize in efficient design and high-quality construction for seamless integration.
- Directly Attached to Home
- Shared Wall Structures
- Integrated Utilities
- Space-Efficient Layouts
Detached ADUs
These stand-alone units provide flexible living options, such as rental income or guest accommodations. Our team ensures high-quality construction and compliance with local regulations.
- Stand-Alone Structures
- Private Entrances
- Independent Utilities
- Flexible Use Options
Home Additions
Enhance your home’s functionality and value with custom home additions. Whether you need a new bedroom, office, or in-law suite, our additions seamlessly blend with your existing structure.
- New Bedrooms
- Home Offices
- In-Law Suites
- Seamless Integration
Home Extensions
Professional custom home extension services. Whether you’re looking to enlarge your kitchen, living room, or add a sunroom, our extensions integrate seamlessly with your existing home.
- Enlarged Kitchens
- Spacious Living Rooms
- Added Sunrooms
- Seamless Integration
GALLERY
Some Previous Successful Home Extensions Projects in Mercer Island, WA
Licensed, Insured, and Trusted Contractor
Our fully licensed and insured team ensures your project is handled with the utmost professionalism and safety. Our reputation for reliable service is backed by numerous satisfied clients who trust us with their homes.Local Permit and Zoning Expertise
With extensive knowledge of Mercer Island’s local building codes and permit processes, we ensure your project complies with all regulations. This expertise makes the construction process smooth and hassle-free.Personalized Solutions
We offer tailored solutions to meet your unique needs, whether you prefer modern designs or traditional aesthetics. Our custom home additions and ADUs enhance your home’s functionality and value, reflecting your personal style.Quality Craftsmanship
We use only the best materials and sustainable building practices to ensure durability and aesthetics. Our skilled craftsmen are dedicated to delivering exceptional results, ensuring every detail is meticulously crafted to the highest standards.Experienced and Dependable
With over 14 years of experience, BLC Remodeling LLC has the knowledge and skills to handle any home addition or ADU project. We are committed to completing projects on time and within budget, maintaining open communicat
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Achieve Your Dream Home With Our Process
Simplified Mercer Island Home Extension Process
1.
Schedule a Consultation
2.
In-Home Assessment
3.
Receive a Detailed Quote
4.
Schedule and Begin Work
Start Your Home Transformation Today
Schedule Your Mercer Island ADU or Addition Estimate
Call us anytime, we strive to answer all inquiries within 24 hours.
Estimate Request Form
Frequently asked questions
Adding an addition to your existing home is generally more cost-effective than building a new house. Home additions make use of existing infrastructure and utilities, which can significantly reduce costs. However, the total expense will depend on the size and complexity of the addition, as well as the materials used.
The cheapest type of home addition is typically a single-room extension, such as a sunroom or a small bedroom. These additions require less structural work and fewer materials compared to multi-room additions or second-story expansions. Costs can be further minimized by choosing cost-effective materials and designs.
The timeline for home additions varies depending on the project’s scope and complexity. On average, a small addition like a single room can take 3-4 months, while larger projects, such as adding a second story, can take 6-9 months. Detailed planning and efficient project management are crucial to staying on schedule.
On Mercer Island, ADUs must meet specific criteria:
- Size: Maximum of 1,000 sq. ft. or 40% of the primary dwelling’s floor area.
- Parking: One additional parking space required for the ADU.
- Compliance: Must adhere to all relevant construction codes.
For more details, visit the Mercer Island City Government website.
Service Areas
Other Service Areas
Don’t see your neighborhood listed? No problem! We are eager to hear about your project. Call us today, and let’s discuss how we can help. Proudly serving homeowners throughout Eastside and Greater Seattle!