ADU Builder Agoura Hills: Guest Houses, Hillside ADUs and JADUs
Framed by the scenic Santa Monica Mountains, Agoura Hills properties are uniquely suited for custom detached backyard cottages, garage conversions, and luxury guest houses. We design and build seamless, high-end ADUs that complement your main residence while expertly managing local hillside zoning and Los Angeles County building permits from start to finish.
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- Licensed Class B General Contractor
- Turnkey ADU Design & Permitting

The ADU Builder Agoura Hills Homeowners Trust
Agoura Hills sits in the foothills of the Santa Monica Mountains, with roomy lots, oak-studded hillsides and the equestrian feel of Old Agoura. Whether you picture a modern backyard cottage, a guest house for parents or a garage conversion for family, KN Remodeling is the ADU builder Agoura Hills homeowners can count on to plan around the land.
We are a licensed, insured, family-owned design-build team. One crew handles design, engineering, permits and construction, with a free in-home consultation, honest pricing, a schedule we keep and a written warranty on every ADU.
Services From Your ADU Builder Agoura Hills Team
Detached Guest Houses
Standalone homes designed around your lot, views and existing trees.
Hillside ADUs
Foundations, retaining walls and drainage for sloped foothill lots.
Garage Conversions and JADUs
Turn a garage or unused space into a suite for family or guests.
Fire-Hardened Construction
Class A roofing, ember-resistant vents and non-combustible siding.
Turnkey Design and Build
Plans, engineering, permits and construction handled by one team.
Premium Materials
Quality finishes and energy-efficient systems built to last.
What Shapes an ADU in Agoura Hills
Agoura Hills is its own city with its own planning and building review. A local ADU builder Agoura Hills owners hire should plan around these details:
- City of Agoura Hills permits: Plans are reviewed by Agoura Hills, not LADBS or Ventura County, with its own standards.
- Oak tree protections: The city protects native oaks, so ADU placement, grading and utilities are planned around them.
- Fire zones: Many foothill neighborhoods are high fire zones, and the 2018 Woolsey Fire is a reminder of why fire-hardening matters.
- Hillside lots: Sloped lots may need soils reports, grading plans and stepped foundations.
- Old Agoura character: Equestrian properties and rural streets call for ADUs that fit the neighborhood feel.

How Our ADU Builder Agoura Hills Process Works
Here is what to expect when you partner with us on your Agoura Hills ADU:
Free Site Consultation
We walk your lot, note oaks, slope and fire zone needs, and talk through your goals.
Design and 3D Plans
Floor plans and renderings placed to protect trees and capture views.
Selections
Choose roofing, flooring and fixtures within your budget.
Permits and Approvals
We handle City of Agoura Hills review, including any oak tree or grading requirements.
Construction
Our crew builds safely and cleanly, with regular updates.
Final Walkthrough
We review every detail with you before handing over the keys.
ADU Builder Agoura Hills Costs
Slope, fire-hardening and tree protection shape most Agoura Hills budgets. Typical ranges:
- Garage conversion or JADU: roughly $100,000 to $175,000
- Detached ADU, 500 to 800 sq ft: roughly $225,000 to $350,000
- Larger or hillside ADU: roughly $325,000 to $500,000 or more
Every ADU builder Agoura Hills estimate we write is itemized after a site visit. Learn more about the cost to build an ADU in Los Angeles and ADU rental requirements, or visit the City of Agoura Hills website.
ADU Builder Agoura Hills FAQs
Why hire a local ADU builder Agoura Hills homeowners recommend?
Agoura Hills combines oak protections, hillside lots and fire zones. A local builder plans around them from day one, which avoids redesigns and delays.
Will oak trees affect where I can build my ADU?
They can. The city protects native oaks, so we map trees early and place the ADU, grading and utilities to avoid or minimize impacts.
Can I build an ADU on a sloped Agoura Hills lot?
Often, yes. Sloped lots may need soils reports, retaining walls and stepped foundations, which we include in the plan and estimate.
What fire safety rules apply?
Many neighborhoods are high fire zones, so ADUs need fire-hardened construction such as Class A roofing, ember-resistant vents and non-combustible exterior materials.
How much does an ADU cost in Agoura Hills?
Garage conversions often start around $100,000, and detached ADUs usually run about $225,000 to $350,000 depending on size, slope and finishes.
How long does an Agoura Hills ADU take?
Most projects take about 4 to 7 months for design and permits, then 4 to 8 months to build. Hillside or oak-heavy lots may take longer.
Ready to Build Your ADU in Agoura Hills?
Book a free site consultation with the ADU builder Agoura Hills families trust and see what your property can support.
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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.