Ranked #1 San Diego Room
Addition Contractor
Discover our room addition projects in San Diego’s North County
Our room additions not only enhance your living space—but uplift it
Whether you’re remodeling your home or want to increase your home’s value, a home addition is a cost-effective way to transform your home. We’ll take care of the whole process, from planning and permitting, to finishes and completion.
Room additions are a smart investment for many reasons— they increase your home’s value, add convenience and comfort to your family and guests, and provide a solution to the much-needed extra space your home needs.
Add a Bedroom for your Growing Family
If you have a growing family or a multi-generational household, an additional bedroom offers the convenience and comfort you need.
Create an Additional Bathroom
A bathroom addition adds convenience for your family and guests, and increases your home’s resale value.
Build a Master Suite for your Home
Increase your storage space with a walk-in closet, and add a private bathroom to transform your bedroom into a true master retreat.
Expand your Kitchen
Expand your kitchen into a big, open space that’s perfect for multi-course meal prep, entertaining guests, and more.
Ready to transform your home?

On-time guarantee
Our commitment to you is to provide you with exceptional service and no surprises. We stand behind our promised timeline. If we do not complete your project at the end of the agreed upon timeline, TNT Design and Build will take $250/day off the amount you owe until the job is done.

Reviews
Great work! Professional and an easy to deal with from start to finish. Very pleased with my kitchen remodel. Would definitely recommend Tamari and his team.
- Jillian S.
Tamari is the best, he turned my dream home into a reality! Love his work and work ethic. Prompt and sets realistic expectations with deadlines and completing projects! You can’t go wrong with TNT! Thanks again Tamari!
- Salpi D.
I wouldn’t trust anyone else for my remodel needs! TNT is amazing at the little details and creating exactly what you envisioned. I highly recommend them for any of your Remodel needs.
- Amy V.
Tamari and his team really did a wonderful job on designing, installing and transforming our bathroom and kitchen. Excellent custom kitchen and bathroom. Everything turned out beautiful. Having your ideas come to life is amazing. Truly an ‘Epitome of a Professional.
- Queenie Wright