Kellow Construction helped us out with our recent office TI. They were communicative, timely, kind, and clean. We're very happy with their service and will be calling them again for future work.
License VerifiedServing Santa Barbara, Santa Barbara County · Based in Santa Barbara, CA
Pricing on request — unlock Kellow Construction's ADU pricing for your project





Kellow Construction is a CSLB-verified contractor listed in Santa Barbara County with classification B.
5+ years building ADUs · CSLB 1070520 · B - General Building Contractor
Pricing varies by unit type, size, finishes, and site conditions. Unlock Kellow Construction's project pricing for your lot — free, no obligation.
| Unit type | Typical size | Pricing |
|---|---|---|
| Studio / JADU | ≤ 500 sq ft | Pricing locked — unlock to view |
| 1-bedroom detached ADU | 600–750 sq ft | Pricing locked — unlock to view |
| 2-bedroom detached ADU | 750–1,000 sq ft | Pricing locked — unlock to view |
| Garage conversion | 400–600 sq ft | Pricing locked — unlock to view |
| Attached ADU | 400–800 sq ft | Pricing locked — unlock to view |
Pricing is unlocked per project
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In-house design and full permit handling.
Turnkey ground-up and conversion builds.
Guidance and lender introductions.
ADU formats this builder takes on.
What's covered after move-in.
Kellow Construction helped us out with our recent office TI. They were communicative, timely, kind, and clean. We're very happy with their service and will be calling them again for future work.
The Kellow Construction team is fantastic. Management is professional and amicable, costs are transparent and the finished work is top-notch. I will use them again for another construction project I have in the autumn.
We contracted with Kellow Construction to start a major kitchen/dining renovation the end of April, to be completed the end of August - and it was finished right on time! The permitting and demolition processes were smooth, and soon we were in the exciting construction phase. We were given plenty of time and assistance in making choices and it was fun to watch the transformation take place. Throughout the entire time, every worker was respectful of the fact that we were living in the house. The entire experience was pleasant and we are delighted with the outcome - the vision I had in my head is what we ended up with. Kudos to Kiel and Emily Kellow, Jason Long and the entire team for giving us a fabulous new space!
Kellow Construction is the best of the best! They helped me redesign my primary bath and I couldn’t be happier. They treated me like family and helped make my project better than I could have possibly imaged. I highly recommend!
I cannot recommend Kellow Construction enough! We needed a pole in our living room removed - right before Christmas - eek! Well there was absolutely nothing to worry about. The team that came in was so knowledgeable about the work and even had ways we hadn't thought of to make it better. The guys could not have been more friendly and kind. I truly got the sense that they all really loved what they do and genuinely enjoyed each other. I feel like that came through in the amazing job they did. Not only did they do a fantastic job on the project, they left the house better than they found it. You would never have guessed that we had construction done - it was spotless. Kiel always answered any questions that we had thoroughly and thoughtfully, always including both my husband and me in the process. And to top it off, he is just a sincerely great guy and a pleasure to talk to. It is rare to have work done without any hassles or stress but I've never even heard of anyone actually enjoying the process, but that is exactly what you'll get with Kellow Construction. We can't wait to have them back for more projects!
Kellow Construction is a full-service ADU builder serving Santa Barbara, CA, handling design, permitting, and turnkey construction for detached ADUs, attached ADUs, garage conversions, and junior ADUs (JADUs). Kellow Construction holds a 5.0-star rating across 15 verified homeowner reviews.
Yes. Kellow Construction holds an active CSLB license (1070520), classified B - General Building Contractor, and is bonded and insured.
Kellow Construction prices every ADU per project — your cost depends on size, finishes, and site conditions. Garage conversions are the most affordable path; detached units cost more. Pricing is unlocked per project: request a quote to get Kellow Construction's exact, no-obligation estimate for your lot.
Kellow Construction builds ADUs in Santa Barbara, Santa Barbara County.
Most ADU projects run 6–12 months end to end — roughly 1–2 months for design and permitting (California caps plan check at 60 days for compliant units) and 4–8 months of construction. Kellow Construction confirms a timeline for your specific project during the feasibility consultation.
Tap any "Get a Quote" button on this page to share a few details about your property and project. We'll confirm your service area, match you directly with Kellow Construction, and set up your free feasibility consultation — no obligation.