The Ultimate Guide to Basement Remodeling Companies in Great Falls, VA
April 11, 2025
Discover the best basement remodeling company Great Falls VA to transform your space with expert craftsmanship and custom designs.
Room Additions
With a custom room addition, you can increase the amount of space in your home and add custom features such as a home theater, wine cellar, home office, or sunroom.
Interior Remodeling
Room Additions & Remodeling
When it’s time to build a room addition on your home, call an interior remodeling contractor with style and experience. Berriz Design Build has been designing and building custom room additions for homes in the Northern Virginia area since 2004.
With a custom room addition, you can increase the amount of space in your home and add custom features such as a home theater, wine cellar, home office, or sunroom.
As your family grows, when loved ones come to live with you, or you want to increase the quality of your home, our remodeling contractors can provide you with the extra space and luxury you’ve been looking for.
Why Consider a Room Addition?
As your needs change, your home should change with you. Room additions offer a flexible solution that allows you to stay in the neighborhood and home you love—while gaining the extra space your lifestyle demands. Common reasons homeowners pursue additions include:
A growing family requiring more bedrooms or bathrooms
Aging parents needing a private in-law suite
The shift to remote work creating demand for a dedicated home office
The desire for a larger kitchen, mudroom, or entertainment area
Maximizing property value before selling
Whether you want to build up, bump out, or create a seamless extension of your existing home, our expert team will tailor the design to meet your needs, your home’s architecture, and your budget.
Types of Room Additions We Specialize In
No two homes—or homeowners—are alike. That’s why Berriz Design Build offers custom solutions for a wide range of room addition projects, including:
Second Story Additions
Maximize your footprint without sacrificing yard space by building up. We design and construct full second-story additions that blend beautifully with your existing structure and provide spacious new living quarters.
Bedroom & Bathroom Additions
Perfect for growing families or creating a guest suite, adding a bedroom and bathroom can make your home more accommodating and valuable.
Sunrooms and Family Rooms
Expand your living area with a bright and airy sunroom or a cozy family room perfect for relaxing or entertaining guests.
In-Law Suites
Whether you’re caring for aging parents or planning for multi-generational living, we design complete in-law suites with private entrances, kitchenettes, and bathrooms for comfort and independence.
Garage Conversions
Transform unused garage space into a guest room, gym, office, or art studio with a design that feels completely integrated with the rest of your home.
Kitchen Expansions
If your kitchen feels cramped or outdated, we can reconfigure your floor plan or extend your space to accommodate modern appliances, open layouts, and ample storage.
Seamless Design & Build Process
At Berriz Design Build, we simplify the remodeling experience by offering full-service design-build solutions under one roof. From initial consultation through final walk-through, our team handles everything, including:
Site analysis and feasibility
Architectural and interior design
Permitting and local code compliance
Construction and project management
Finishing touches and final inspections
We keep you informed every step of the way, delivering projects on time and with the exceptional quality you’d expect from one of Arlington’s most respected home remodeling firms.
Blending Beauty with Functionality
One of the biggest challenges with room additions is making them look like they’ve always been a part of your home. Our expert designers and craftsmen focus on seamless transitions—matching rooflines, materials, interior finishes, and layout so your new space feels cohesive and natural. Whether you live in a Colonial, Cape Cod, or modern Craftsman-style home, we tailor our design to enhance your existing architecture.
Budgeting for Your Room Addition
Room additions are a significant investment, but they offer lasting value—both in terms of everyday comfort and future resale. Costs can vary depending on the size, complexity, and finishes of the addition, but our team works closely with you to create a design that fits your goals and your budget. We provide transparent estimates, outline all options, and never compromise on quality.
Frequently Asked Questions (FAQs)
How do I know if a room addition is right for my home?
A room addition is ideal if you love your current home or neighborhood but need more space. Whether it’s a growing family, aging parents moving in, or the need for a home office or larger kitchen, room additions allow you to tailor your home to your current lifestyle. Our design team will evaluate your property, local zoning codes, and structural considerations to help you determine what type of addition makes the most sense.
What types of room additions does Berriz Design Build offer?
We offer a wide range of room additions tailored to your needs and home’s existing architecture, including:
Second-story additions
Bedroom and bathroom expansions
In-law suites and guest quarters
Kitchen extensions
Sunrooms and family rooms
Garage conversions
Every design is customized to blend seamlessly with your home and meet your functional and aesthetic goals.
Will my addition look like it was part of the original home?
Yes—seamless integration is one of our specialties. At Berriz Design Build, we prioritize architectural harmony. We carefully match rooflines, materials, windows, siding, flooring, and finishes so that your new space feels like it has always been part of your home. Our design-build process ensures consistent quality and attention to detail from start to finish.
How long does a typical room addition project take?
The timeline varies depending on the size and complexity of the project. A small bump-out or room extension might take a few months, while a full second-story addition could take longer. Our team will provide you with a detailed project timeline during the planning phase and keep you informed at every stage to ensure a smooth, stress-free experience.
Do I need permits for a room addition?
Yes, most room additions require building permits and must comply with local zoning laws, building codes, and HOA guidelines if applicable. Berriz Design Build handles the entire permitting process for you—from submitting plans to ensuring inspections are completed—so you can focus on the excitement of transforming your home.
We Specialize In Design & Build - Custom-Tailored Remodeling Plans
At Berriz Design Build, we’re happy to say that we are not like other remodelers. Since we started our business in 1994, we have strived to distinguish ourselves from our competitors with exceptional customer service, a nearly unlimited range of product options, and, above all, absolutely outstanding design and construction.
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Testimonials
What Our Clients Say
We are proud of the landscape design and remodeling work we’ve done for our Northern Virginia clients, and we feel privileged to be able to share the praise they’ve given us over the years.
"Berriz Design Build has completed several projects for us: master bath and master bedroom renovation, kitchen and family room renovation, addition of large front porch, replacement of deck with two terraces, and extensive landscaping.
The level of customization and design creativity are exceptional. Workmanship is done to a high standard. The owner has special ability, the best that I have experienced in this type of work, to translate customers' wants into practical solutions."
"Bob and his team are a pleasure to work with. I have used them for three projects and their attention to detail is top notch. They do truly beautiful work and I look forward to working with them again."
"We used Bob to remodel our entire home in Arlington, Virginia and couldn’t be happier with the results! We have an older 1940s home that hadn’t been updated since then and Bob somehow gave us a new house that look like it’d been this way all along. Working with him was such a great time and our project was done quickly and to a super high quality. He would suggest things along the way that we hadn’t thought of that were much better than our vision. All of the crews he had on our job site were incredibly professional and the best at what they do. We have a few projects we’d like to tackle in the future and we will definitely be using Berriz Design Build!"
