Enhance Your Home with a Custom Kirkland Home Addition
Need more space for a growing family, a home office, an extra bedroom, or a larger kitchen? BB-Builders Pro builds custom home additions, second-story expansions, and room extensions across Kirkland. We design each addition to blend with your existing home. From Juanita to Houghton, Rose Hill, and Norkirk, our licensed crew knows Eastside homes and lot styles. Many lakeview and hillside lots call for a smart second story. Every project adds square footage, function, and lasting resale value.
We also handle the parts most homeowners dread. Adding living space in Kirkland means a building permit, filed online through the Accela portal. We manage plan review, setbacks, and the design review some additions require. Standard reviews run about four to eight weeks, and design review board projects take longer. We track lot-coverage limits and impervious-surface rules on your parcel. Then our design-build team keeps your addition on code and on schedule.
All reviews![]()
Yelp
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ThumbtackExcellent308 reviews
Excellent308 reviews
Excellent121 reviews
Excellent121 reviews
Good23 reviews
Good23 reviews
Excellent8 reviews
Excellent8 reviews
Excellent156 reviews
Excellent156 reviewsPosted on Google![]()
golf gal20 August 2026
What can I say. Ron is the best. He listened, acted, and followed through on every detail I requested. Without him and his awesome worker, Begdan, I wouldn’t have my updated kitchen and bathroom renovations! Thank you for being tentative throughout the process.Posted on Google![]()
Niaz Sassounian19 August 2026
Ron and his team did an amazing job on my bathroom! I met with three other companies before deciding to go with BB Builders Pro, but Ron immediately gave me a great sense of trust and had so many thoughtful suggestions. The whole experience was smooth from start to finish, and the bathroom turned out absolutely stunning. I couldn’t be happier with the work or the experience!Posted on Google![]()
nathan miller4 August 2026
Amazing work. We had our garage renovated into living space which involved plumbing, electrical, framing, siding, hvac, sheetrock, painting, flooring, moving a water heater and added a closet. Everything was very professional from the moment we met with Rotan he adjusted his schedule to come out on a sunday and stayed for almost 2.5 hours to walk us through the whole processes. We got a qoute that day and it was very competative. Yuri was excelent and got the job done faster then originally qouted and kept the work space clean while the project was happening being respectful that we were living in the house. We were very happy with the speed, price and quality that the job was completed. I woukd recommend BBbuilders to anyone.Posted on Google![]()
Harpreet Dhillon31 July 2026
BB Builders recently remodeled our kitchen and guest bathroom, and we couldn’t be happier. Ravneet was incredibly easy to work with and offered great ideas that made the finished spaces even better than we imagined. The crew showed up on time every day, respected our home, and paid attention to every little detail. The quality of the craftsmanship is top-notch, and we’ve already received so many compliments from family and friends. I highly recommend the entire BB Builders team.Posted on Google![]()
dazy hari31 July 2026
After getting several estimates, we decided to go with Ravneet at BB Builders for our bathroom renovation, and it was the best decision we could have made. The communication was excellent, pricing was fair, and the quality of work was exceptional. They transformed an outdated bathroom into a modern, beautiful space that we absolutely love. The project finished on time, and there were no surprises along the way. If you want honest professionals who genuinely care about customer satisfaction, BB Builders is the company to hire.Posted on Google![]()
Gurinder Dhillon31 July 2026
As a real estate agent, I work with a lot of contractors, and I can honestly say Ravneet and the team at BB Builders have been fantastic to work with. I recently listed a home where my clients hired BB Builders to complete several remodeling projects, including the kitchen and bathrooms, to get the property ready for the market. The transformation was incredible. The quality of the work truly elevated the home, and it looked move-in ready by the time everything was completed. What stood out the most was Ravneet’s professionalism and communication. She was on-site almost every day checking on the crew, making sure everything stayed on schedule, and keeping both my clients and me updated throughout the entire process. That level of communication gave everyone peace of mind. My clients were extremely happy with the finished product and actually asked me to leave this review on their behalf because of how positive their experience was. We’re getting ready to list the home next week, and we’re confident the updates BB Builders completed will make a huge difference. Thank you, Ravneet and the entire BB Builders team, for your hard work, attention to detail, and commitment to customer satisfaction. I look forward to recommending you to many more of my clients in the future.Posted on Google![]()
Sahota Family30 July 2026
If you’re looking for a company that values quality and customer service, BB Builders Pro is the right choice. Rav went above and beyond to ensure everything turned out perfectly.Posted on Google![]()
Sandeep Sahota30 July 2026
From the first conversation to the final walkthrough, BB Builders Pro delivered exceptional service. Rav was reliable, professional, and great to work with.Posted on Google![]()
Manrit Kaur29 July 2026
Very happy with the service from BB Builders Pro. Rav kept us informed every step of the way and was great to work with.Posted on Google![]()
Banmeet gill29 July 2026
I had a wonderful experience with BB Builders Pro. Rav was always available to answer questions and kept everything on track. Highly recommend!Posted on Yelp![]()
Bill And Chris G.13 July 2026
BB-Builders did a great job with our kitchen remodel. They did everything from a complete demo of our kitchen, created an 8.5 foot window with counter that opened up our front room to the kitchen, new flooring, cabinets, backsplash, counter, lighting, and paint. Everyone involved in the project was professional and friendly so we want to thank Rotem, Rav, Edward, Donald, who built our cabinets on sight, and Chong and Fong (I'm sorry if I got the spelling wrong) who installed our counters, and especially Yuri who made our dream kitchen come true! Thank you for your hard work, diligence, and attention to detail to make sure everything was perfect. We would highly recommend the team at BB-Builders Pro.Posted on Yelp![]()
Jonathan ..13 May 2026
Akiva left us with a remarkable bathroom remodel!!! We could not be happier with his communication or quality of work.Posted on Thumbtack![]()
Anthony A.27 March 2026
BB Builders Pro did a great job remodeling my wood deck. They were easy to work with, showed up on time, and kept things clean and organized. The quality of the work is solid, and the deck looks much better now. Overall, a smooth experience and I’d recommend them.Posted on Thumbtack![]()
Tom H.24 March 2026
I worked with BB Builders Pro on a new ranch-style home in Renton, and the experience was excellent. Their team guided me through the early stages, offered professional advice, and kept communication clear throughout. The crew was professional, efficient, and easy to work with. I felt confident in their work and would highly recommend them for a new home build.Posted on Thumbtack![]()
Tony H.11 March 2026
I had my entire bathroom completely redone, and the results are fantastic. The team was punctual, professional, and really knew what they were doing. They handled every part of the remodel smoothly, and now my bathroom feels fresh and modern. I’m very happy with their work!Posted on Thumbtack![]()
Joseph O.7 March 2026
We wanted to update the style of our home starting with the half bathroom. BB Builders Pro did a fantastic job with the remodel. The new fixtures and design really brought the space to life. They were easy to work with and the quality of the work shows.Posted on Thumbtack![]()
Alan Griffith23 February 2026
We hired BB Builders to manage our kitchen remodel. We started with a concept, and they worked with us every step of the way to make it happen. We couldn't be happier with the final results.The work was top notch, the process was as simple as possible, they got it done surprisingly fast, and the price was more fair. We will be recommending BB Builders to our friends, and they'll be the first call when we start our next renovation project.Posted on Thumbtack![]()
Alex H.22 February 2026
The crew showed up on time, kept the area clean, and paid attention to the small details. The new wood decking looks great and feels solid. It really changed how we use our backyard.Posted on Thumbtack![]()
Anthonia Okoye7 January 2026
Angel was really sweet helping us navigatePosted on Thumbtack![]()
Sarina Tsai12 December 2025
We love our new kitchen! Professional team, quality work, on time and great communication. Highly recommend for any remodel projectPosted on Thumbtack![]()
Aaron Ramirez3 December 2025
We recently completed a master bathroom remodel with the BB Builders Pro team, and we cannot recommend them enough! This is one of the best experiences my wife and I have had with a General Contractor. Our Project Manager, Ron, was very communicative, on-site frequently, and checked in with us even on weekends to make sure we were on the same page and had all the materials to complete the work. His team lead, Bogdan, worked in a very similar way, and checked in with us when he and the team had any questions during the construction process. They completed the work well within the timeline, and did so even with a mid-work change in the wall tile that led to a stop in work for a few days. They did an AMAZING job on our master bathroom and made it exactly how we envisioned. We are having them come back to remodel our guest bathrooms very soon too. If you have a house project that you want professionally done, please reach out to Ron and BB-Builders Pro to have it done right.Posted on Thumbtack![]()
Ashley gregory4ashley@yahoo.com28 November 2025
Great Company! Noah Dan and his crew were extremely professional and did an amazing job with home rebuild! Would definitely recommendPosted on Yelp![]()
Ashley A.28 November 2025
Great and professional work! Noah Dan and crew did a wonderful job on my home rebuild! Good price and very good work!Posted on Yelp![]()
Ia P.21 October 2025
BB Builders was one of the best moves we made for this project! Noah helped us reimagine the whole layout and design, from picking materials and appliances to choosing colors and textures. The entire experience was smooth, the crew was super responsive, and everything got done efficiently. Big thanks to the team for turning our house into the home we always dreamed of, and added great value for our investment!Posted on Yelp![]()
David H.16 September 2025
We had a very good experience with BB-Builders when they rebuilt one deck and repaired another. Ron G did a good job in explaining the work that was needed and how the process would go. He was on site several times to review with the crew the work being done. The financing available was very helpful. We are pleased!Posted on Yelp![]()
Nancy G.23 August 2025
What a great experience working with Zack Betito and his team to remodel our 1970's kitchen. Zack was there for every step of the planning, made suggestions that vastly improved the project, and stopped in daily to make sure everything was going well. If a problem came up, he solved it immediately. The finished kitchen far exceeded our expectations.Posted on Yelp![]()
Brandon J.26 June 2025
Great quality and professionalism. Very good customer service and helpful with any questionsPosted on Yelp![]()
Emily J.25 December 2024
I had such a great experience with BB-Builders! From the first phone call, I could tell this was a professional and reliable company. The project manager came out to meet us, explained everything clearly, and went over all the options. What really stood out was the free 3D design they provided--it helped us visualize the project perfectly. Plus, their quote was super competitive compared to others we looked at. Honestly, there's no reason not to move forward with them. If you're looking for top-notch service, BB-Builders is the way to go. Highly recommend!Posted on Yelp![]()
Donna E.3 December 2024
This company handled a complete overhaul of our deck and railing system, and the results were outstanding. The team was skilled and professional, and they worked hard to bring our vision to life. The new deck is not only visually appealing but also incredibly functional and safe. The custom railing they designed is a showstopper! I can't thank them enough for transforming our outdoor area into a beautiful and enjoyable space.Posted on Yelp![]()
Jenna O.22 November 2024
We had a great experience with BB Builders, Zack & the whole team- we did a kitchen remodel that was right on budget, finished earlier than expected and turned out just as planned. Can't wait to start the bathroom remodel next! Highly recommend BB Builders Pro!Posted on BBB![]()
Hojune Y16 October 2024
I had an amazing experience with BB-Builders Pro when remodeling my bathroom. I highly recommend them!
Trusted Family Owned Remodeling Service
Our licensed Kirkland crew puts true craft into every build. We stand behind quality work, sound framing, and code compliance.
We design each home addition to fit how you live, your taste, and your budget. No cookie-cutter plans, no recycled layout.
We weave your new space into the existing structure, roofline, and trim. The addition looks original, not bolted on later.
We manage permits, setbacks, and design review through the city, so your home expansion keeps moving without the delays.
We select lasting materials, strong insulation, and smart home tech. Your energy-efficient addition performs for decades ahead.
BB-Builders Pro offers a wide range of services to cover every aspect of your expansion project. Our comprehensive services include:
Add a bedroom, home office, guest room, or in-law suite to the main level of your Kirkland home.
Gain a full second floor on your lakeview or hillside lot when the ground leaves no room to grow out.
Open the main floor into a bright kitchen and dining space built for cooking and hosting friends.
Add a roomier living or family space for movie nights, gatherings, and easy everyday evenings.
Create a private master suite with a spa-style bath, generous walk-in closet, and quiet retreat.
Add an in-law or multigenerational suite with its own private space for aging parents or grown kids.
Bring in daylight all year with a sunroom or enclosed patio made for gray Eastside winter days.
We combine smart layouts, natural light, and connected home tech so your new space works harder.
Design a main-level suite with wider doorways and a step-free bath for safe, accessible aging at home.
Testimonials
01
We talk through your vision, walk your Kirkland property, and shape a home addition plan that fits your needs.
02
Our architects create detailed blueprints and 3D renderings, so you can see the finished addition before we start work.
03
We handle permits, setbacks, and design review with the city, so your addition clears approval without the runaround.
04
Our skilled crew drives every build phase, from foundation and grading through framing, finishing, and final details.
05
Before we hand you the keys, we complete a full inspection and walkthrough, so every detail of your new space meets the code.
A home addition expands your existing house with new, permanent living space. Homeowners use it to gain a bedroom, a second floor, a wider kitchen, or a private suite. Built into your current structure and foundation, a Kirkland addition reads as part of the original home rather than an add-on.
Kirkland home addition costs depend on square footage, finish choices, and how your lot sits. Ground-floor additions carry the lowest cost per square foot. Going up a level costs more because of the framing and engineering involved. Kitchens and master suites sit at the top of the range once plumbing and fixtures are added. You get a line-by-line estimate before anything begins.
Plan on roughly three to six months from first drawings to the final sign-off. Kirkland’s standard permit review lands around four to eight weeks, though anything sent to the Design Review Board runs longer. Bigger builds and second stories stretch the schedule further. We map realistic dates to your specific scope up front.
A building permit is required for essentially every Kirkland home addition. You submit the application through the city’s Accela portal, not MyBuildingPermit. Reviewers check your site plan, setbacks, and lot-coverage math before signing off. Certain additions also pass through Administrative Design Review under the zoning code.
Administrative Design Review applies to some Kirkland additions under zoning code Chapter 92. It looks at how the new space fits your site and the surrounding street. Plenty of straightforward additions never trigger it. We flag whether yours does before design work gets far.
Staying put through the build is realistic for most home additions. We wall off the active work area to keep dust, noise, and debris contained. A second story or a torn-open kitchen sometimes calls for a short stretch away. First-floor projects usually let you remain home start to finish.
Ground-floor rooms, upward second-story builds, and master suites top the request list. Right behind them come kitchen and dining expansions and in-law suites. Around Kirkland, homes on lakeview and hillside lots often build up, adding a floor without eating into the yard.
A well-built addition typically lifts what your home is worth. Extra finished square footage and refreshed space draw strong interest from Eastside buyers. Keep in mind that King County reassesses after major work, which can push your taxes up. The payoff shows in both everyday comfort and resale.
Start with your lot dimensions, required setbacks, budget ceiling, and how long you plan to stay. Kirkland caps lot coverage and impervious surface, and those limits steer the design. The slope and drainage of your parcel shape how the foundation gets built. Sorting this out early keeps you from paying for a redesign later.
Look for a licensed, insured builder who has done additions in your area. Request references, examples of past Eastside work, and proof they pulled the permits themselves. One team carrying design, permitting, and construction beats juggling several. That single-source approach keeps the job on code, on budget, and on time.
Most owners fund an addition through a home equity loan, a HELOC, a cash-out refinance, or a renovation loan. Equity loans and HELOCs fit those sitting on built-up value. Renovation loans step in when there isn’t much equity yet. Climbing Kirkland home values have left many owners with equity worth tapping.
Simple Financing Options
Discover the perfect financing solution for your remodeling project. We provide tailored options to suit your budget and ensure your dream home becomes a reality.
Contact us today for a free consultation, and let’s begin transforming your house into the home you’ve always wanted.
Contact us today for a free consultation, and let’s begin transforming your house into the home you’ve always wanted.