Our Expert Home Additions Services in McLean, VA
Looking to expand your living space without moving? At Mosaic Design & Build, we specialize in home additions in McLean, VA that blend seamlessly with your existing structure while improving comfort, function, and property value. With 8 years of experience, our skilled team has helped hundreds of homeowners in Northern Virginia transform their homes with creative, customized solutions. Every home tells a story. Our job is to help you write the next chapter—whether it’s a bigger family, a new lifestyle, or a better way to live.
Custom Home Additions: Designed for Your Lifestyle
Adding square footage to your home can solve more than just space issues. Whether you’re welcoming a new family member, working remotely, or simply craving more elbow room, home additions are the perfect solution.
As a trusted room addition contractor in McLean, we handle everything—from in-law suite construction and second story additions to garage conversions and sunroom additions. Our team ensures your project complies with all zoning regulations while delivering on design, budget, and timeline.
A recent project in McLean involved converting a detached garage into a private home office and guest suite—now the homeowners have a quiet, bright space for work and family visits. Stories like this show what’s possible when good design meets real needs.
Why Home Additions Matter
Home additions aren’t just about more space—they’re about creating better spaces. Here’s why our clients invest in custom home additions:
- Boost Property Value – Increase resale appeal with added square footage.
- Avoid Costly Moves – Stay in your current neighborhood while upgrading your lifestyle.
- Tailored Design – Create a space that fits your needs, whether it’s a master suite addition or a structural home extension.
- Improved Functionality – From open floor plans to privacy upgrades, home expansions improve flow and use.
Many McLean homeowners turn to bump-out additions when they want a larger kitchen or family room without a full remodel. These compact extensions make a big impact without disrupting the rest of the home.
Why Home Additions Is a Smart Investment
Adding onto your home is a truly smart investment for several compelling reasons. Primarily, it provides the much-needed extra living space without the significant hassle and expense of moving. Whether it’s a new bedroom, an expanded kitchen, a home office, or a sunroom, an addition can be custom-tailored to your specific needs and lifestyle, ensuring optimal functionality and comfort. This personalized expansion directly increases your property’s value and curb appeal, often yielding a strong return on investment. Furthermore, it allows you to enhance your current home’s layout and amenities, improving your quality of life while remaining in a familiar neighborhood. Instead of facing relocation costs, property taxes, and market uncertainties, expanding your existing footprint is a cost-effective way to create your ideal living environment.
Why Choose Mosaic Design & Build for Your Home Additions?
We’re not just another remodeling company. At Mosaic Design & Build, we’ve earned our reputation in McLean for being detail-obsessed, trustworthy, and results-driven.
We’ve completed dozens of home expansion services in McLean and nearby areas, earning 5-star reviews from homeowners.
Our in-depth knowledge of structural engineering, architectural styles, and regional permitting makes the process stress-free.
We use durable materials and skilled labor to ensure long-term value.
From design to final inspection, your ideas guide every detail.
Our Process
How Our Home Addition Process Works
Transparency and communication are key in every project. Here’s what to expect when working with Mosaic Design & Build
We meet at your home to understand your goals, take measurements, and discuss ideas. We might talk through questions like: Where will the new structure tie into the old one? What features are must-haves? Is there room to expand within the current footprint?
Our experts draft a plan that incorporates your vision, local codes, and structural requirements. We revise until it’s just right. Many clients choose features like vaulted ceilings or walk-in closets during this stage. We help make your wish list practical and buildable.
Our crew handles framing, electrical, plumbing, roofing, and finishes—keeping disruption minimal and quality high. You’ll have a dedicated project manager to keep everything running smoothly and answer any questions.
Before we wrap up, we conduct a detailed inspection and walkthrough to ensure everything meets your expectations.
Take a Look at Some of Our Work in McLean, VA
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What Our Clients Are Saying
EXCELLENT Based on 18 reviews Ali O2024-12-21Trustindex verifies that the original source of the review is Google. I wanted to have an addition done at my house and I contacted Mosaic Build Design in Sterling, VA. Mr. Yuksel and his team have been a great help with designing and obtaining permit. Their professionalism and expertise are commendable. While the design process was going on I had issues with water heater and he sent his plumber and electrician and got that taken care of right away. Saying Thank you will not be enough to express my gratitude towards them. Mr. Yuksel and his team goes above and beyond their call of duty. I highly recommend them for any home renovation and addition work. minoo samuel2024-11-30Trustindex verifies that the original source of the review is Google. Mosaic (Dennis) was responsive and he followed through with everything he said. He gave good design ideas keeping in mind functionality and price. He was flexible with our needs of project delivery timing. We had guests coming, and we needed the project at a point where they could stop for a week, and they did! We truly appreciated his flexibility there. Overall he is a pleasure to work with. The project was completed within the time frame and cost as expected. We would happily use Mosaic services again! Sarah Kang2024-07-25Trustindex verifies that the original source of the review is Google. Mosaics finished a very large scale outdoor deck/patio for my 3.5+m brand new construction. Dennis the owner is very humble and kind and gave me a very fair price and never raised the price throughout the project. Most importantly he returned to fix all the minor details that I wanted addressed. This is my 7th home and worked with many many contractors over the years and he is definitely one of the best! Ali Sajjad2024-03-07Trustindex verifies that the original source of the review is Google. Dennis and his Team at Mosaic Design and Build did a remarkable job building our extension. Dennis and his Team were meticulous with their approach and exceeded all our expectations. Their professionalism and attention to detail was off the charts. Its my pleasure and previlege to recommend Mosaic Design and Build to any homeowner planning to build an extension for their home Hamdi Demirkol2024-02-27Trustindex verifies that the original source of the review is Google. Not recommended. see attached, two bathroom is leaking to first floor and one toilet is leaking to basement. Huge serious defects all over the house. Ravi Gupta2024-02-05Trustindex verifies that the original source of the review is Google. I'm thoroughly impressed with Mosaic. They truly exceed expectations, demonstrating a commitment to thoughtful decision-making. Although the project has extended beyond the anticipated timeline, their consistent communication and clear explanations regarding permitting challenges, weather conditions, and change orders have been greatly appreciated. Dennis, the company's leader, is fantastic. I wholeheartedly recommend them without any reservations. Lyd2023-12-29Trustindex verifies that the original source of the review is Google. Dennis and his team surpassed my expectations with their exceptional work on my deck, patio, and fireplace. I highly recommend this contractor to anyone in need of a reliable, skilled, and creative team for outdoor construction projects. James Hollowell2023-12-22Trustindex verifies that the original source of the review is Google. Dennis and his crew did a fantastic job on my garage expansion. They matched the brick perfectly and the detailed finish is a work of art. Samih Bakan2023-12-16Trustindex verifies that the original source of the review is Google. Working with Mosaic Design and Build on the remodeling of my basement and the installation of a beautiful kitchenette was an exceptional experience. Their professionalism, from design to completion, was evident throughout the entire process. The designs they proposed were outstanding and truly enhanced the space. The product quality they utilized exceeded my expectations, and I am delighted with the final result. I highly recommend Mosaic Design and Build for their exceptional service and top-notch craftsmanship.

703-996-9191
Common Question
Frequently Asked Questions
Most home additions take between 8–16 weeks, depending on the size and complexity of the work. Projects like second story additions may take longer due to structural changes. Weather, permits, and material availability can also impact timelines.
Costs vary widely. A small bump-out addition might cost $25,000–$40,000, while full garage conversions or master suite additions can range from $60,000–$150,000. We’ll provide a detailed estimate after the initial consultation.
Yes. In McLean, all structural home extensions require permits. We handle the permitting process and ensure everything complies with local zoning laws.
Yes, in most cases. We set up safety barriers and schedule work to minimize disruption. For larger projects, a short stay elsewhere might be needed.
We handle all major additions, including sunroom additions, garage conversions, in-law suites, second stories, and custom home additions. If you have a unique layout, we can adjust designs to make it work.
Absolutely. Our team works closely with you to create functional, beautiful layouts that suit your home and lifestyle. We offer 3D renderings when needed to help you visualize the space before we build.
We use high-quality wood, steel, roofing, insulation, and finishes. Materials are chosen for durability, energy efficiency, and style. We also consider materials that match your existing home so the new space looks seamless.
Yes. All work is backed by a workmanship warranty. We also offer follow-up visits for any post-construction concerns. We believe in long-term relationships, not one-time jobs.