ADU Builder Granada Hills: Multigenerational Backyard Homes.
Granada Hills’ wide, family-friendly lots are perfect for a custom ADU built for multigenerational living or rental income. We design and build detached units and garage conversions tailored to your property, with City of Los Angeles permitting handled in-house.
Book a Free Consultation- 4.9 Rating on Google
- Licensed Class B General Contractor
- Turnkey ADU Design & Permitting

The ADU Builder Granada Hills Families Trust
Granada Hills is a neighborhood of families, and many of the ADUs we build here are for parents, grandparents or adult children who want their own space close by. KN Remodeling is a licensed, insured, family-owned design-build team, and the ADU builder Granada Hills homeowners call for one crew from the first sketch to the final walkthrough.
Wide, family-friendly lots throughout the neighborhood leave excellent room for a detached backyard cottage, while attached ADUs and garage conversions work well for keeping family under one roofline. We know the City of Los Angeles zoning rules and help you add a private home that raises your property value.
ADU Builder Granada Hills Services
Licensed Class B Contractor
Every structural detail built to City of Los Angeles codes and safety standards.
Turnkey Design and Build
Plans, engineering, permits and construction under one contract.
Multigenerational ADUs
Single-level layouts, wider doors and step-free showers for aging parents.
Garage Conversions and JADUs
Simple, cost-smart space for adult children or caregivers.
Framing and Trades
Structural framing, electrical upgrades and interior finishes done right.
Comfort and Efficiency
Good insulation and efficient cooling for hot north Valley summers.
What Your ADU Builder Granada Hills Team Checks First
From the flat streets near Chatsworth Street to the hillside homes toward the San Gabriel foothills, every lot is a little different:
- Wide family lots: Many lots have room for a detached ADU of up to 1,200 square feet without crowding the yard.
- Historic districts: Homes in Balboa Highlands, a Historic Preservation Overlay Zone known for its Eichler homes, can need design review for ADUs visible from the street.
- Hillside and fire zones: Lots near the foothills may fall in high fire hazard zones that call for ember-resistant vents and fire-rated roofing.
- Aging in place: Step-free entries, grab-bar blocking and wider halls make an ADU work for parents now and later.
- Utilities: We decide early whether to share the main electrical panel or add a separate LADWP meter.

How Our ADU Builder Granada Hills Process Works
Here is how your Granada Hills project moves from idea to move-in day:
Free In-Home Consultation
We walk your lot, check setbacks and overlay zones, and talk through who will live there.
Design and 3D Views
Floor plans and 3D renderings so the whole family can see the result first.
Selections
Choose finishes, flooring and accessible fixtures within your budget.
Permits
We file with LADBS, including any historic review, and manage plan check corrections.
Construction
Our crew builds your ADU safely, cleanly and on schedule.
Final Walkthrough
We review every detail with you and close out the permit.
ADU Builder Granada Hills Cost Guide
Your price depends on size, ADU type, site work and finishes. Typical Los Angeles ranges:
- Garage conversion or JADU: roughly $90,000 to $150,000
- Detached ADU, 500 to 800 sq ft: roughly $180,000 to $260,000
- Larger detached ADU, 800 to 1,200 sq ft: roughly $280,000 to $350,000 or more
Hillside site work, fire-zone requirements and accessibility features can affect the budget. As your ADU builder Granada Hills team, we give you a written, itemized estimate after the free consultation. Compare an attached ADU, a detached ADU and a garage conversion, or read about the Balboa Highlands HPOZ.
ADU Builder Granada Hills FAQs
How much does an ADU builder Granada Hills project cost?
Garage conversions and JADUs usually run about $90,000 to $150,000. Detached ADUs typically range from about $180,000 to $350,000 or more, depending on size, site work and finishes.
Can you design an ADU for my aging parents?
Yes. We often build single-level ADUs with step-free entries, wider doors, curbless showers and blocking for grab bars.
I live in Balboa Highlands. Can I still build an ADU?
Usually, yes. Because it is a Historic Preservation Overlay Zone, an ADU visible from the street may need design review. We plan for that from the start.
Who issues ADU permits in Granada Hills?
Granada Hills is part of the City of Los Angeles, so permits go through LADBS. We handle the filings, plan check and inspections for you.
How long does an ADU take to build?
Design and permits usually take two to four months, and historic review can add time. Construction typically takes three to five months for a detached ADU.
Can I rent out my Granada Hills ADU?
Yes. Long-term rentals of 30 days or more are allowed. Short-term rentals are generally not allowed for ADUs in Los Angeles.
Meet the ADU Builder Granada Hills Families Recommend
Book a free in-home consultation and plan a home for the people you love.
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What Our Clients Are Saying
We are deeply honored by the feedback from our extensive list of 100+clients regarding our services.
EXCELLENT Based on 46 reviews Jeffrey MorrisTrustindex verifies that the original source of the review is Google. We used k&n Remodeling for a complete kitchen remodel, and they were so amazing! Nathan and his team were very professional and did excellent work. We are so happy with our new kitchen! Richard TaylorTrustindex verifies that the original source of the review is Google. I was very satisfied with the work KN Remodeling did on my kitchen. They were very professional and finished the job on time. The quality of their work was excellent and they were always available to answer any questions or concerns I had. I would highly recommend KN Remodeling to anyone looking for a reliable and efficient kitchen remodeler. Nadia MunozTrustindex verifies that the original source of the review is Google. "I recently had the pleasure of working with KN Remodeling on adding an Accessory Dwelling Unit (ADU) to my property, and I couldn't be happier with the results. The team at KN Remodeling was professional, efficient, and extremely knowledgeable throughout the entire process. The quality of their ADU products exceeded my expectations, and the final result was exactly what I envisioned. I highly recommend KN Remodeling for anyone looking to add an ADU to their property. Thank you for a job well done!" Ching BaltazarTrustindex verifies that the original source of the review is Google. We have done two major home renovations with Nathan and his team over the last few years. They are great to work with: very professional and responsive, so when we wanted to remodel our kitchen, we trusted them with the project. They completed the work quicker than the estimated time frame and within budget. We could not be happier with the outcome and we're already planning future projects with his team. We strongly recommend KN Remodeling for any home projects you may have! Sally ChabertTrustindex verifies that the original source of the review is Google. KN Remodeling did a fantastic job on a complete remodel of our kitchen-from planning to completion, the job was seamless, on time and budget, and we are delighted with the results. Nathan had very helpful suggestions and an aesthetic eye for detail. His crew was professional, reliable, meticulous in their work, and a pleasure to have around. The entire team was courteous and very respectful of our living area and left our space tidy at the end of each work day. I wouldn't hesitate to hire them again or to recommend them to family and friends. We feel lucky to have found them. Jose PrendesTrustindex verifies that the original source of the review is Google. We took A LOT of quotes on our kitchen refresh, and Nathan was the only one who wasn't pushy or threw out high-pressure sales pitches. He listened to our concerns and approached them realistically and offered options that were doable, and not empty promises. His work teams were very professional, worked diligently, and were never rude. They took as much care of our house as we would. Even when we pointed out certain imperfections and mistakes they were quick to fix and patch up. Our kitchen was done way sooner than we had anticipated, so that's always a plus. One of the things I really liked about Nathan was that he was always a phone call away and he was very attentive to our concerns. He never dismissed us or ignored us. He cared and he never let us down. We've had experiences with other companies that have been less than favorable, and what we disliked the most was being ignored when we noticed imperfections in their work. Even today, as the kitchen is finished and Nathan came over to do final checks, we noticed our drawer hardware was rusty (it was a refresh and not a remodel), and Nathan offered to send someone over to install new ones free of charge. I would wholeheartedly recommend this company, and especially Nathan, who I found to be an honorable contractor. Ralph DavisTrustindex verifies that the original source of the review is Google. Nathan's team did two projects for us: new roof and finishing off our garage with drywall, paint and new cabinets. We couldn't be more pleased. Completely professional crew, friendly, attentive and project was completed on time. Working with Nathan was a pleasure and we would use KN again for sure. Highly recommend. HSZ33Trustindex verifies that the original source of the review is Google. I highly recommend Nathan and his team. They are Professionals who get the job done right the first time. Nathan truly cares and is very passionate about high-quality work. Thank you for a job well done. We definitely look forward to working with you again Banafsheh EsmaeiliTrustindex verifies that the original source of the review is Google. professional team, they get the job done fast, on time, with amazing results. Mr Nathan saved our unit with his professional experience and great knowledge we highly recommend him.