ADU Remodeling in Westlake Village – Custom Backyard Homes for Lakeside Living
Set around the shores of Westlake Lake on the Los Angeles–Ventura County line, Westlake Village properties offer generous lots ideal for a custom detached ADU or guest house. We design and build seamless backyard homes that complement your main residence, with City of Westlake Village permitting handled start to finish.
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- Licensed Class B General Contractor
- Turnkey ADU Design & Permitting
ADU Remodeling in Westlake Village – Expand Your Property with Custom ADUs by KN Remodeling
For more than thirty years, KN Remodeling has been turning properties into high-value multi-dwelling estates. We are a licensed, insured, family-owned design-build team, so one expert crew carries your accessory dwelling unit project from the first sketch to the final walkthrough, ensuring the structural framing, plumbing, and insulation are done properly rather than rushed. Free in-home consultation, honest pricing, a strict schedule we keep, and a written warranty on every ADU build.
Your Trusted Local ADU Partner
Whether you picture a modern detached backyard cottage with clean architectural lines or a spacious garage conversion to host family, KN Remodeling is here to bring your ADU vision to life in Westlake Village.
Set around the shores of Westlake Lake on the Los Angeles–Ventura County line, Westlake Village properties offer generous lots ideal for expansion. We understand local zoning regulations within the City of Westlake Village and help you maximize your property value with functional independent living spaces.
Our Westlake Village ADU Construction Services
Fully licensed building team ensuring all structural work complies with City of Westlake Village building codes and safety standards.
Complete architectural blueprint and planning collaboration. No need to manage multiple contractors—we oversee your build from start to finish.
Custom standalone secondary dwelling units designed to integrate seamlessly with your yard layout and aesthetic.
Specialized conversion solutions to transform underutilized garages into comfortable, modern rental units or guest suites.
Skilled specialists covering every detail: structural framing, electrical grids, sub-panel installations, and custom interior finishes.
We source top-quality building materials and energy-efficient systems to guarantee lasting durability and lower utility bills.
The KN Remodeling ADU Process
Here is what you can expect when you partner with us for your Westlake Village ADU project:
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Locations We Serve
KN Remodeling provides expert construction services of ADU in Los Angeles and Neighborhoods in LA, ensuring high-quality, customized solutions for your additional dwelling unit needs.
San Fernando Valley
Los Angeles
Ventura County
What Our Clients Are Saying
We are deeply honored by the feedback from our extensive list of 100+clients regarding our services.
Frequently Asked Questions
Pricing depends on the square footage, whether you are building a detached backyard cottage or converting an existing garage, and the interior finishes you choose. As a general guide for the Los Angeles area:
- Garage conversion or Junior ADU (JADU): roughly $90,000 to $150,000
- Detached custom ADU (500 to 800 sq ft): roughly $180,000 to $260,000
- Larger detached luxury ADU (800 to 1,200+ sq ft): $280,000 to $350,000+
Site prep for hillside properties, trenching long utility lines, or foundation upgrades can influence final costs. We provide a written, itemized estimate after your free in-home consultation so there are no vague allowances or surprise line items later.
Most detached ADU construction takes three to five months of active on-site work. Garage conversions can often be completed slightly faster, typically within two to four months.
- Architectural design, structural engineering, title-24 energy calculations, and city permit approval take place before breaking ground and typically add two to four months
- Custom elements like cabinetry, specialized roofing, and window packages require lead times, so we order them early
- You receive a clear written schedule at the start and regular updates throughout the build
We streamline every phase to ensure your project moves forward smoothly without unnecessary delays.
Yes. KN Remodeling is a licensed Class B general contractor in California with more than 30 years of building experience. We carry full general liability and workers' compensation insurance on every project.
- Your project is managed from concept to completion by a dedicated project manager
- Structural framing, electrical panels, and plumbing connections are performed by licensed professionals and signed off by city inspectors
- You work with a reliable, consistent construction crew rather than a revolving door of subcontractors
- All structural and construction work is backed by our written warranty
Yes, building permits are strictly required for all new ADU construction and legal conversions. Westlake Village contracts with the Los Angeles County Department of Public Works for all building and safety functions, so plans are submitted through the County's Building and Safety Division office in Calabasas rather than a city building department.
- Permits ensure your structure complies with local height limits, setbacks, and fire safety codes
- A Planning Department zoning clearance is required before the County's Building and Safety office will issue your permit
- Properties near Westlake Lake or the surrounding hillsides may need additional grading or drainage review
We handle all architectural filings, engineering reports, city reviews, and mandatory inspections so you don't have to navigate city bureaucracy on your own.
Westlake Village's lakeside and hillside properties around Westlake Lake call for their own planning approach:
- County-Contracted Permitting: Building and safety functions run through LA County's Calabasas office rather than a city department
- Lakeside & Hillside Lots: Properties near the lake or surrounding hillsides may need grading or drainage review
- Utility Connections: Determining whether to tie into the main house sub-panel or add a separate meter through Southern California Edison
- HOA Guidelines: Many Westlake Village communities enforce architectural review separate from county code
We evaluate all of these site-specific conditions during your free initial consultation.