Junior ADU Builder in Los Angeles
Create a compact, independent living space within your existing single-family home. AXMIS Construction plans and builds Junior ADUs throughout Los Angeles—coordinating feasibility, interior reconfiguration, permits, efficiency kitchens, private entrances, building systems, and final inspections.
What Is a Junior ADU?
A Junior Accessory Dwelling Unit, commonly called a JADU, is a compact independent living space created entirely within the walls of an existing or proposed single-family residence. Under California standards, a JADU is limited to no more than 500 square feet.
A JADU includes a separate entrance and an efficiency kitchen with cooking appliances, food-preparation space, cabinets, and appropriate utilities. It may have its own bathroom or share sanitation facilities with the primary residence when permitted.
AXMIS plans each Junior ADU around the home’s existing layout, privacy, circulation, utilities, natural light, ventilation, storage, and intended use so the limited footprint feels practical and comfortable.
Custom Planned
Designed Around the Property
Full-Service
Preconstruction Through Completion
LA Based
South Bay and Westside Projects
The right ADU for the property
AXMIS evaluates the existing lot, structures, access and intended use before determining the most practical direction.
ADU Design & Permitting
Ground-up homes shaped around your site, architecture, and way of living. Ground-up homes shaped around your site, architecture, and way of living.
Attached ADUs
Ground-up homes shaped around your site, architecture, and way of living. Ground-up homes shaped around your site, architecture, and way of living.
Detached ADUs
Ground-up homes shaped around your site, architecture, and way of living. Ground-up homes shaped around your site, architecture, and way of living.
Garage Conversion ADUs
Ground-up homes shaped around your site, architecture, and way of living. Ground-up homes shaped around your site, architecture, and way of living.
Junior ADUs
Ground-up homes shaped around your site, architecture, and way of living. Ground-up homes shaped around your site, architecture, and way of living.
Turnkey ADU Construction
Ground-up homes shaped around your site, architecture, and way of living. Ground-up homes shaped around your site, architecture, and way of living.
Every square foot has to work harder
Property Feasibility
The lot, existing structures, access, setbacks, utilities and likely construction constraints are reviewed before the project advances.
Design Coordination
Architecture, engineering and consultants are aligned around a single buildable plan before permitting begins.
Utility Coordination
Electrical, plumbing, sewer, water, HVAC and site connections are assessed as part of early constructability planning.
Transparent Budgeting
Scope, allowances, selections and assumptions are documented so the owner can understand the budget before field work begins.
Our process,
step by step
- Site protection and layout
- Grading and excavation
- On-site utility trenching
- Under-slab plumbing
- Footings, rebar and slab
- Wall and roof framing
- Sheathing and hardware
- Roofing and waterproofing
- Windows and exterior doors
- Exterior cladding
- Plumbing rough-in
- Electrical rough-in
- HVAC installation
- Rough inspections
- Insulation and air sealing
- Drywall and paint preparation
- Cabinets and countertops
- Tile and flooring
- Interior doors and trim
- Interior painting
- Fixtures and appliances
- Finish plumbing and electrical
- Touch-ups and punch list
- Final inspections
- Cleaning and handover
One structure.
Multiple possibilities
The best layout and specifications depend on who will use the ADU now and how the property may need to adapt in the future.
Multigenerational Living
Private, nearby space for parents, adult children or extended family with independent living functions.
Guest Residence
A comfortable place for visitors that preserves privacy for both the guests and the main household.
Work & Creative Space
A quiet studio, office or flexible workspace separated from daily activity inside the primary residence.
Long-Term Flexibility
Additional living space that can evolve as household needs, work patterns and family arrangements change.
Property Improvement
Thoughtfully designed square footage that can improve the usefulness and long-term appeal of the property.
Independent Living
A complete residence with its own kitchen, bathroom, sleeping area, mechanical systems and entrance.
Custom accessory dwelling units built for Southern California homes
Building in Los Angeles requires a coordinated understanding of the property, local standards, structure requirements, utility and construction elements. AXMIS Construction manages general contractors in the South Bay, LA market and focuses on Los Angeles, where custom homes and ADU-oriented projects demand a more focused, thorough build.
What makes an ADU project complex?
A smaller building is not necessarily a simpler project. ADUs share many of the same systems as a full-size home within a more compact footprint and limited backyard. Site access, setbacks, service capacity, structure design, drainage, privacy and construction staging all require attention in a way that a straightforward addition does not.
Can an ADU match the primary residence?
Yes. Exterior materials, roof forms, windows, proportions and landscape relationships can be coordinated with the existing home. This still allows the ADU to function independently as its own complete residence while complementing the architecture of the main structure.
Does AXMIS work with existing ADU plans?
Yes. AXMIS can start consultation from existing plans, though constructability, site conditions, utility strategy, design assumptions and project scope are always reviewed before construction begins.
Built for the way you want to live
From a ground-up residence to a transformative remodel, every project receives the same rigorous planning and field oversight.
ADU / Service Areas
Before starting an ADU project
We specialize in high-end custom home construction, major whole-home remodels, luxury ADUs, and architectural additions across South Bay and Westside Los Angeles.
Yes. We manage the entire preconstruction process — including feasibility analysis, detailed cost estimation, permit submissions, and city approvals.
We serve coastal Los Angeles including Manhattan Beach, Hermosa Beach, Redondo Beach, Pacific Palisades, Brentwood, Santa Monica, and Palos Verdes.
Absolutely. We regularly collaborate with leading architects and interior designers, bringing cost and constructability expertise early to protect the vision.
