Custom ADU Remodeling in Manhattan Beach – Expand Your Property's Potential
Manhattan Beach's tight coastal lots call for efficient, well-designed ADUs that make the most of limited square footage. We manage City of Manhattan Beach permitting and zoning review to deliver a custom accessory dwelling unit built for beach-community living.
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- Licensed Class B General Contractor
- Turnkey ADU Design & Permitting
ADU Remodeling in Manhattan Beach – 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 space-efficient ADU on a Sand Section lot or a detached unit on a larger Hill Section property, KN Remodeling is here to bring your ADU vision to life in Manhattan Beach.
Manhattan Beach's neighborhoods each come with their own constraints: Sand Section lots are famously narrow, the Coastal Zone west of Valley Drive requires a Coastal Development Permit alongside the standard ADU permit, and the Tree Section protects mature trees along streets like Elm, Pine, and Walnut, which can affect siting. The city's local ADU permit is still ministerial with no public hearing, but it layers design rules like alley-access driveways and translucent-glazing requirements on top of state law. We identify which set of rules applies to your lot before design work begins.
Our Manhattan Beach ADU Construction Services
Fully licensed building team ensuring all structural work complies with City of Los Angeles 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 Manhattan Beach ADU project:
Ready to Build Your Dream ADU in Manhattan Beach?
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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
South Bay & Peninsula
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
Manhattan Beach's small, high-value lots and coastal permitting layer tend to push pricing above the broader LA average. As a general guide:
- Garage conversion or Junior ADU (JADU): roughly $110,000 to $170,000
- Detached custom ADU (500 to 800 sq ft): roughly $210,000 to $310,000
- Larger detached luxury ADU (800 to 1,200+ sq ft): $330,000 to $420,000+
Narrow Sand Section and Hill Section lots, alley access, and coastal-grade materials can all affect the final number. We provide a written, itemized estimate after your free in-home consultation.
Most detached ADU construction in Manhattan Beach takes three to five months of active on-site work.
- Design, structural engineering, and Title 24 compliance typically add two to four months before ground-breaking
- Properties in the Coastal Zone need a Coastal Development Permit reviewed alongside the building permit, which generally adds about two to six months depending on scope and whether the project is appealed
- Small, narrow beach lots can require more detailed site planning up front, which we factor into your schedule from the start
You'll receive a written project schedule that accounts for coastal review timing, plus regular updates throughout construction.
Yes. KN Remodeling is a licensed Class B general contractor in California with more than 30 years of building experience, including coastal projects, and we carry full general liability and workers' compensation insurance.
- A dedicated project manager oversees your Manhattan Beach ADU from concept through final inspection
- Structural, electrical, and plumbing work is performed by licensed trades and signed off by city inspectors
- You work with a consistent, experienced crew familiar with small beach-city lots and Coastal Zone requirements
- All structural and construction work is backed by our written warranty
Yes, permits are required for every new ADU or legal conversion. Manhattan Beach is its own city, and applications go through the Community Development Department rather than Los Angeles.
- Properties within the city's Coastal Zone need a Coastal Development Permit in addition to the standard building permit, reviewed together by Community Development under the certified Local Coastal Program
- Per the City's own ADU guidance, projects in the Coastal Zone are governed by state ADU law rather than certain local Manhattan Beach Municipal Code standards, such as the alley-driveway and translucent-glazing rules
- ADUs are addressed in Manhattan Beach Municipal Code Chapter 10.74, with a 16-foot height cap under the local standards
We handle the architectural filings, coastal coordination, and inspections so you're not navigating two permitting tracks on your own.
Manhattan Beach's beach-city layout brings a few considerations that differ from inland neighborhoods:
- Narrow Lots: Sand Section and Hill Section parcels are often compact, which limits detached ADU placement and favors efficient, well-planned layouts
- Alley Access: many properties load garages from a rear alley, which frequently becomes the access point for an ADU as well
- Coastal Zone Timing: budgeting extra months for Coastal Development Permit review helps keep expectations realistic
- Height Limits: local ADU standards include a 16-foot height cap, which we design around from the first concept sketch
We evaluate all of these site-specific conditions during your free initial consultation.