Does your house feel a little small now? Looking to add a new bedroom, expanding your kitchen, or create a dedicated home office? A home addition can be the perfect solution. At Inspired Builders, we carry extensive experience under our belt, specializing in home expansion and house extension services across San Jose and the Bay Area. We have helped homeowners upgrade their current properties into more functional, comfortable, and spacious living spaces.
You can expand without having to deal with the inconvenience of moving when you add on to your house. If you love your home but feel it no longer meets your needs, an addition can increase your square footage and improve your living environment. Whether you are looking for more room for a growing family, a home office, or a multi-functional space, a house extension can bring your vision to life.
Here are a few reasons homeowners in the Bay Area turn to us for residential expansion services:
More space for your family to grow
Creating room for new hobbies or a dedicated workspace
Additional bedrooms or bathrooms for added comfort
Extra rental space or an in-law suite for family and guests
When you work with home extension experts in San Jose, the possibilities are endless. Inspired Builders offers a variety of solutions customized to fit your home and lifestyle:
Room Expansions: Add space to existing rooms, whether it’s a kitchen, living room, or bedroom.
Second-Story Additions: Maximize your lot’s potential by building upwards instead of outwards.
Accessory Dwelling Units (ADUs): Create additional living space for family members or generate rental income.
Home Offices: Design the perfect workspace that blends comfort and productivity.
We help you design a home addition that perfectly matches your needs and budget while complementing your home’s existing style.
Would you like your home addition to blend in with the surrounding architecture or to have a striking new appearance? The choice is yours. Some homeowners prefer their house extension to naturally integrate with the current design, while others seek a distinct style for their new space. Inspired Builders has experience in both approaches, delivering home additions that reflect your preferences and vision.
The cost of your home expansion will depend on several factors:
Size and Scope: Larger additions or multiple rooms will naturally increase the cost.
Design Features: Special features such as custom finishes, energy-efficient elements, or unique architectural styles can affect the price.
Structural Requirements: The existing foundation may require reinforcement depending on the addition’s size and complexity.
At Inspired Builders, we work closely with you to plan a project that meets your budget without compromising on quality. We also offer creative solutions to help reduce costs while still achieving your goals.
Beyond the construction cost, there are other financial factors to consider:
Property Taxes: The added square footage may increase the value of your home, which could impact your property taxes.
Insurance: Your home insurance may need to be updated to cover the new space.
HOA Regulations: If you live in a community with an HOA, make sure to review their guidelines before starting your home addition project.
We recommend consulting with your insurance agent, HOA (if applicable), and local authorities to get a clear picture of how these factors might affect your house extension.
When you choose Inspired Builders for your home addition services, you are working with a team of experienced professionals committed to delivering high-quality results. We have the expertise to handle any home expansion project, whether it’s a small room addition or a full-scale house extension.
Why homeowners in San Jose and the Bay Area trust us:
Customized Designs: We create home additions that fit your unique needs and preferences.
Skilled Architects and Builders: Our licensed contractors, architects, and designers work together to bring your vision to life.
Attention to Detail: We focus on the quality of every aspect of the project, from the foundation to the finishes.
Clear Communication: You will stay informed throughout the process, from planning to completion.
Ready to expand your living space? Inspired Builders is here to help. Our dedicated project manager will guide you through every step of your home addition project, making sure it aligns with your vision and budget. Contact us now to schedule a consultation. Call (669) 800-9899 to get started. Let’s work together to make your home a more comfortable, functional, and spacious place.
The timeline for a home addition can vary depending on the scope and complexity of the project. Generally, a home addition takes between 3 and 6 months from start to finish. This includes design, permits, construction, and finishing touches. However, larger projects or those with custom features may take longer. During the initial consultation, we provide you with a more detailed and accurate timeline based on your specific needs.
The process of a home addition typically involves the following steps:
Consultation: We will discuss your goals, preferences, and budget to understand what you need.
Design and Planning: Our team of architects and designers will create detailed plans for your addition.
Permits and Approvals: We will handle all necessary permit applications and guarantee the project meets local regulations.
Construction: Our licensed contractors will begin work, following the approved design.
Finishing: We will complete all finishing touches, including painting, flooring, and fixtures.
Inspection and Completion: After final inspections, we hand over your newly expanded space.
Throughout the process, we maintain clear communication and keep you updated on progress.
The cost of a home addition in the Bay Area depends on several factors, including the size of the addition, materials used, and the design complexity. On average, home additions range from $150 to $400 per square foot. The exact cost will be determined during the consultation, where we’ll take into account your vision, the scope of the project, and your budget. We also offer financing options to make your home expansion more affordable.
In addition to the construction costs, there may be other expenses to consider, such as:
Permit Fees: Depending on the size and type of the addition, permit costs can vary.
Utility Connections: If your addition requires new plumbing, electrical, or HVAC systems, this can add to the cost.
Property Taxes: Increasing the square footage of your home may lead to higher property taxes. It’s a good idea to check with your local municipality before starting the project.
Insurance: Make sure your homeowner’s insurance covers the new addition, or consider updating your policy.
We will provide a detailed breakdown of potential costs so there are no surprises during the process.
In most cases, you can continue living in your home while the home addition is being built, though there may be some disruptions. We strive to minimize any inconvenience by setting clear project timelines and maintaining a clean, organized worksite. Depending on the size of the addition and its location in your home, some areas may be temporarily inaccessible. We will work with you to make sure the construction process causes as little disruption as possible and accommodate your daily living needs.
EXCELLENT Based on 110 reviews Bernard Ellis2025-11-02Trustindex verifies that the original source of the review is Google. From the initial consultation to the final walkthrough, the contractor demonstrated integrity, skill, and attention to detail. They stayed within budget and made sure the work matched exactly what we discussed. The craftsmanship is solid and the finishing work is clean and polished. I highly recommend their services. Warren Ross2025-11-02Trustindex verifies that the original source of the review is Google. Inspired Builders Inc helped us with a full basement finish, and the outcome is incredible. The new space feels comfortable, functional, and well-designed. The crew was respectful of our home, cleaned up daily, and worked efficiently. I’m genuinely thrilled with how everything turned out. Arnav Myah2025-11-01Trustindex verifies that the original source of the review is Google. I was really impressed by the professionalism and transparency they showed throughout the project. They explained the process clearly, provided accurate timelines, and stuck to the budget. The final result looks amazing and exceeded our expectations. I would absolutely hire them again for future work. Sasha Nathanial2025-10-31Trustindex verifies that the original source of the review is Google. This general contractor took the stress out of our renovation. They handled everything from permits to finishing touches with skill and care. The work was completed on time and the quality is outstanding. Our home feels more functional, comfortable, and beautiful. Truly grateful for their hard work. Taniyah Ricky2025-10-30Trustindex verifies that the original source of the review is Google. I had a wonderful experience working with this general contractor. The team managed every aspect of my remodel with professionalism and attention to detail. They stayed on schedule, kept me updated, and the final result looks amazing. I highly recommend their services for any project! Dylan Tollefson2025-10-26Trustindex verifies that the original source of the review is Google. The general contractor managed our entire home renovation with professionalism and efficiency. Every trade was coordinated perfectly, and the project stayed on schedule. The final result exceeded all our expectations. Gavin Hayes2025-10-25Trustindex verifies that the original source of the review is Google. We hired them for a major remodeling job, and they handled everything from permits to finishes. Communication was clear throughout, and they were always responsive to our questions. Truly a smooth experience from start to finish. Ricardo Barroso-Velasquez2025-10-22Trustindex verifies that the original source of the review is Google. They brought in a great team of skilled workers and kept the project running like clockwork. It was refreshing to work with someone so organized and trustworthy. I’d gladly work with them again on future projects. Krew Dorsey2025-10-21Trustindex verifies that the original source of the review is Google. Our experience with this general contractor was excellent. They handled unexpected issues calmly and found smart solutions without delaying the timeline. The craftsmanship across the board was top-notch. Beckham Salazar2025-10-20Trustindex verifies that the original source of the review is Google. We were nervous about a full kitchen and bath remodel, but this contractor made it so easy. Everything was handled with care and professionalism. The end result looks like something out of a design magazine.
EXCELLENT Based on 62 reviews Kevin T.2025-10-20Verified We did an 800 sq ft addition along with a full remodel of our existing home. Although our project had a few unexpected things come up along the way, David did well to keep us informed and work on solutions together. Our whole project start to finish took 8 months, and would've been shorter had it not been for a delay that was out of David's control. Ursula V.2025-10-13Verified Inspired Builders did an excellent job converting our garage into a junior ADU. They did everything from start to finish (design to turn-key ready). I especially appreciated their flexibility with the design even after construction started. Because it was only a one car garage every inch counted, so we needed a lot of customization. Eden always accommodated our requests and made sure we knew what was going to happen next and when we needed to select materials on time etc. They worked swiftly and were there daily so work progressed fast and they also coordinated all the city inspections very timely so we had minimal delays. And above all that, they took special care to not harm our mature bougainvillea and fruit trees that very right next to the site while digging the trench and putting in new water line piping. The price was very competitive, somewhat under that of another quote we got and they finished within the planned time. We will definitely hire them again if we do another construction! Deborah G.2025-10-02Verified Barak and his team did an amazing job with our kids'/guest bathroom at our house in Mountain View. He came highly recommended from a friend in Menlo Park, and I'm very happy with my choice to work with him. He was easy to communicate with, his timeline was accurate, and his pricing came in quite a bit below another contractor I received a quote from. The guys working at our house (Julie and Carlos) were very competent, friendly, and respectful of our space, and Leo did a great job on the tile work. I didn't like one of the materials I had picked out, and when I brought it up with Barak he just agreed to change it like it was no big deal. Phew! We plan to work with them again when it's time to do our master bathroom. Thanks Inpired Builders! Elaine Chasuk2025-09-21Verified We contracted with Inspired Builders because Eddie took the time and care to explain the concept he had in mind for our home after I told him what I wanted my new kitchen to look like. Eddie and Fernando made sure that all projects I asked for were completed. Even though I started with just a kitchen remodel, while we were waiting for the designs and approvals from the City, I also had them paint the exterior of my house and replace our roof that was almost 40 years old. I had such a small kitchen before, so making holiday cookies and having family dinners was difficult, I had to move things around so I would have counter space to prepare our meals or make baked goods. I'm very happy with the end results. I love my new kitchen. My cat gets his own feeding area so the dog won't eat his food and we made room for a coffee station. Thank you Eddie and Fernando for helping us with this remodel. Johnny L.2025-09-09Verified We hired Inspired Builders last year to do a full scale remodel of my mom's house. This was a large project and we wanted to work with a professional company that could handle and guide us through the entire process so we didn't have to live through the stress. We selected 6 highly rated companies based on Yelp, Google, and Houzz reviews to interview. Although Inspired Builders quote was not the lowest quote we received, we ultimately chose them because we had a great meeting with one of the owners, Barak, and felt very comfortable that he could guide us and limit our stress throughout this process. Although there were bumps along the road, Inspired builders took ownership and solved each problem whenever something came up which is exactly what we were looking for. (An example is when the shower glass vendors chipped our vanity while installing glass shower, they dealt with the vendor and got a new vanity top ordered and replaced.) Overall, the quality of work was great and we are very happy with the results. Inspired Builders is a great team to work with for any Home remodel needs. Rose T.2025-08-21Verified Inspired Builders built our dream home--and on budget! What we did: full kitchen renovation (2 supporting walls removed) and we changed the whole kitchen layout, full guest bathroom, reconfiguration of master bedroom and master bathroom (added walls, created a closet space and changed layout), interior updates (new doors, new flooring in the ENTIRE home, new paint all over the home, plumbing, electrical, removal of a front exterior enclosed patio, ANDDDD completely redid the exterior of my home, changing it from wood to stucco. Phew! Yes, they basically built us a new home in a span of 5 + months so let's just say, we know them VERY well by now! Warning: this review is long BUT detailed as possible so hopefully it can help you make a decision for your own renovation(s). W H Y Inspired Builders? We already knew how expensive this was going to be so it was VERY important for us to find contractors that we could trust. We interviewed 5 in total and all seemed similar (3D renderings, emphasis on past work, etc.), and what initially stood out to me was David's honest opinions. Right off the bat, he suggested ways I could save money, he offered layout suggestions and price differences. I knew he wasn't just trying to make a buck, and I knew right away that if we worked together, he would listen to me and have my back. There was zero pressure. Because if there's one thing I learned with major renovations, you NEED to be comfortable voicing what you want (or don't want) and that starts with how well you work with your team. Plus, there are always going to be surprises and knowing your contractor has your best interest in mind (both logically and budget-wise) is invaluable as you go through this crazy renovation journey. P R O C E S S: This was also a big deal for me because I have never gone through any remodel before. I knew absolutely NOTHING. After signing the agreement, you go through several meetings to discuss everything with everyone (the contractor, your project manager, the foreman, the engineer and the interior designer). Having everyone under the same company was THE BEST PART!! I can't even express how easy it was! Everyone is aware of everything so nothing gets lost in translation. As deadlines pop up and you're being asked a million questions, knowing everyone works together under the same roof makes the journey seamless. Less for you to worry about! Also, having a designer work with us was extremely valuable. You can Pinterest all you want, but nothing beats visiting stores and suppliers with a professional who understands pricing, colors, layout logistics, and who knows other suppliers so your designer can advocate for you. Shout out to Nicole! She was always there when we needed her- for advice, for meetups, phone calls, etc. My home is beautiful because of you! Once you have all your material picked out (yes, you pick out the majority of the material before construction begins) the team starts! Here you just to have to trust the process! But one thing I'd like to point out is our construction team was EXTREMELY TRUSTWORTHY and also very cordial and hardworking. Not only did I know that the personal belongings we left in our home were safe, but they were constantly covered and protected from dust, dirt and harm. Our foreman, Raul, was so easy to talk to that I had zero problems asking him for anything. Several times we changed our mind and sometimes, we were unsure about certain things. But the team was always available for meetings (in person and over the phone) and always made sure we were all in agreement before any decision were made. C O M M U N I C A T I O N: Inspired Builders excelled in this area! Our basic form of communication was through Whatsapp group chat where everyone involved was included. This made it easy for me to search through past conversations, images, documents and videos. I can't express how important communication is when it comes to renos, and David and his team excelled in this area! Every single day, we were updated through whats app and provided with progress pics. David never hesitated to call me or text me for both small and urgent matters. He helps you with your own task list (purchase this, think about this, measure this)--as a working mom, it was so helpful to have such an efficient project manger on your side. I have zero regrets working with Inspired Builders. Take a look at my photos and you'll see the AMAZING work they did on our home. Not only do I love my home, but I can confidently say that the entire, lengthy process of building my home was made sooo much easier and stress-free because of Inspired Builders. No horror stories here! We are constantly referring to them friends and if I ever need anything more done (hmmm maybe my garage?!!), I'll definitely be giving them a call again. Nik K.2025-05-21Verified TLDR: Hired Inspired Builders (Adam was our PM) for a big renovation: kitchen cabinet resurfacing, full master bath remodel, whole-house recessed lighting, and a subpanel replacement with patchwork. Interviewed six contractors and we are so glad we chose them! Adam was responsive, organized, and super flexible, even when city permits caused delays. He adjusted the timeline to keep things moving and made sure the house was spotless before our baby shower/housewarming, which says a lot about how much he cares. Their team handled everything from design help (shoutout to Nicole, who spent a day picking finishes with us) to execution. The bathroom feels like a spa now--wider door, new tile, double vanity, and the cool little shadow box for toiletries. The kitchen cabinets look amazing, and they even painted the inside for free. The recessed lighting (30+ cans!) completely changed the vibe of the house. We went from relying on lamps to a bright, modern feel in every room. They flagged our outdated subpanel early and replaced it quickly with minimal disruption. Everything's labeled, clean, and future-ready. We had a toddler, a dog, and a pregnant wife at home, so we really appreciated how respectful and tidy the crew was. Daily cleanups, careful with materials, and responsive to our feedback. Minor hiccups here and there (mostly scheduling), but Adam always made it right. He even came back weeks later to finish a few punch-list items after things were delivered. The work speaks for itself and we get constant compliments. If you're looking for a trustworthy, skilled, and genuinely great team, go with Inspired Builders. We'd hire them again in a heartbeat. (And yep--before & after pics are a must!) Naomi C.2025-05-10Verified I did a mini renovation of my bathroom, closets, kitchen, & baseboards. Joseph was professional, helpful, & communicative during the entire process. Julio & his construction team were knowledgeable, professional, & provided their professional opinions when I had questions. The results were wonderful and I would recommend them. Clifford W.2025-04-16Verified We had our kitchen remodeled. Inspired Builders Barak over saw entire project. The team included design person, individual teams for demolition, electrical box + wiring, plumbing, tiles + floors, lights, cabinets, refrigerator, stove reconnection, and permits. We are very satisfied with the results. Jinyong L.2025-03-31Verified Inspired builders team realized our dream! After reviewing three different contractors, we decided to work with Inspired Builders because they understood what we wanted and how to make it happen within a reasonable budget (Not the most expensive, but not the cheapest). Eden oversaw the project and he was very responsive and kind. He never said "no" and always tried to bring solutions. Team members, including Efrain and Luis, were very kind and professional. Despite several challenges, they found solutions and brought our vision to reality. Again, appreciate you guys!!
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