Designing & Building Custom Home Additions in Greater San Diego, CA

You may love your home, but if there’s one drawback that you can’t always find a workaround for, it’s not having enough space. Plus, there are many reasons why you wouldn’t want to change that by moving elsewhere: a safe, friendly neighborhood, proximity to your job or to your kids’ schools, and being in a city you love are just a few. But you’re not out of luck—you could simply expand by having Green Room Design-Build create a new home addition. We specialize in custom home additions and have helped numerous clients in greater San Diego, California get the extra space they need with top-notch results they love.

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Room Additions

Need a new bedroom? Bathroom? Kitchen? Home office? Green Room can design and build it just the way you want it, whether it’s for your own personal use or for a family member with other needs.

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First-and Second-Floor Additions

If you live in a multi-story home, you’re not restricted to building a home addition on the first floor alone. We can also build second-floor additions, even going as far as to build an entire second story without remodeling the first floor.

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Tear-Downs & New Builds

If a room in your home no longer works for you, and you need a space that serves an entirely different purpose, we’re here to help. Green Room can completely tear down an existing room and build a new home addition in its place.

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Your Home Addition, Built Your Way

We’ll be happy to discuss what you need from your new home addition and how to personalize it during your design meeting. But before you go into your first discussions with Green Room, know that we offer a wide variety of construction services for home additions. These include:

Cabinetry
Concrete
Demolition
Electrical
Finish carpentry
Flooring
Framing
Inspections
Insulation and drywall
Painting
Plumbing and HVAC

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Five-Star Reviews

What Our Clients Are Saying

"I recently had the pleasure of working with Green Room Design Build on a project for my home, and I couldn't be more thrilled with the results. From start to finish, their team was incredibly attentive to detail and provided outstanding customer service. If you're looking for a company that is meticulous, provides excellent customer service, and is dedicated to finding the right solutions for your project, I highly recommend Green Room Design Build."

C. A.

Tampa, FL

"This company is fantastic! Jake and Josh helped us with the remodel of two bathrooms, along with an entire re-pipping of our condo. From start to finish this experience exceeded expectations. It's not often that a construction project goes to plan as far as budget, timing, and obviously looks. Can't say enough good things about this company, highly recommend. Also, Courtney is the best!"

Peter G.

Tampa, FL

"Green Room is a family business and they understood we had growing needs as a family. The entire staff ensured that they put our family first in this remodel from timely updates, a clean worksite, and finishing the job ahead of schedule. The results are captured in many of the pictures they showcase on their website and here on yelp so, you can see how amazing the results are for yourself. This company is the real deal and is what every family owned business should strive to be. We started as clients and now we feel like family!!"

Neal K.

Tampa, FL

"The team did a remodel for my parents back in 2021. We loved them so much they're now on my first home/remodel. Quality from start to finish. If you've ever had to deal with a tough HOA or Coastal commission, you know. They handled it all. I get regular updates on weekly progress/schedules and we are on track to be in on time."

Bruce J.

Tampa, FL

"Awesome family business, great team and easy to work with. They handled all the city and HOA headaches on our behalf. 10/10 recommend."

Aurora G.

Tampa, FL

"I have worked with so many GC's and subs over the past 3 years and none of them have impressed me like the GRDB team. They're cheaper than the massive GC's yet have far more attention to detail and stay on top of the project with far more vigor than those I've dealt with in the past. These guys will NEVER be a source of any delay. They perform quality control so I don't have to and their project managers (Landon and Josh) supervise every step of the way to make sure everything is perfect. They also don't nickel and dime you if you need any change orders. I would hire these guys 100 times over."

Arash M.

Tampa, FL

"We used the Green Room Team to remodel and expand our house…and were very pleased with them. We went from a 3 bed/2 bath to a 4 bed/3.5 bath with a freestanding garage. Not only did they expand our home, but they unlocked our property’s value, utility, and enjoyment! They were on time, and on budget…which can be rare in the construction world! They coached us well since inception, helped us navigate through every stage of the process, and have even been a resource and sounding board since completion. Jake, Josh, and Team are attentive, trustworthy, and wonderful. They are excellent communicators and detail-oriented. We would happily refer them to anybody looking to build a new house or remodel an existing home."

Williams Family

Tampa, FL

"The manner you approached the bid process, using pictures you had taken and clearly showing you understood what we were trying to achieve, was unique in the process of talking with potential contractors. One of the most compelling features of our project is the tongue and groove ceiling with stunning beams. Lowering the ceiling to allow for HVAC vents was both a functional innovation you devised, but also brings an extra warmth to the room. This was a true example of Design Well, Build Smart. We will always remember the energy and care brought to the process by an amazing and dynamic team. The finished project is beyond our original dream and we will always be indebted to the Green Room Team for making this dream a reality and helping us come home to excellence."

Kevin O.

Tampa, FL