ADU Design & Permitting in Los Angeles
Move from an initial ADU idea to a coordinated, permit-ready plan with AXMIS Construction. We manage property feasibility, architectural planning, engineering coordination, cost review, permit documentation, plan-check responses, and city approvals throughout Los Angeles, the South Bay, and the Westside.
What Is ADU Design & Permitting?
ADU design and permitting is the preconstruction process that turns a homeowner’s goals into coordinated drawings and documentation suitable for review by the local jurisdiction.
The process can include site research, feasibility analysis, concept planning, architectural drawings, structural engineering, energy documentation, utility coordination, consultant input, cost review, and preparation of the permit package.
AXMIS keeps design decisions connected to constructability and budget while coordinating submissions, plan-check comments, revisions, and approvals required before construction can begin.
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.
Before Starting ADU Design & Permitting
A strong permit package begins with an accurate understanding of the property. The ADU type, zoning conditions, existing structures, setbacks, utilities, access, topography, fire requirements, easements, and project goals should be reviewed before detailed drawings begin.
What is included in ADU design and permitting?
The scope may include feasibility analysis, measurements or surveys, concept plans, architectural drawings, structural engineering, energy documentation, utility planning, consultant coordination, cost review, permit submission, and responses to plan-check comments.
Can AXMIS manage the design and permit process?
Yes. AXMIS can coordinate the preconstruction process with architects, engineers, consultants, and permitting agencies so the design, scope, budget, and construction requirements remain aligned.
What types of ADUs can AXMIS design and permit?
AXMIS can coordinate planning for detached ADUs, attached ADUs, garage conversions, Junior ADUs, and other property-specific configurations. The recommended option depends on the existing home, lot, local standards, and intended use.
How much does ADU design and permitting cost?
Professional fees depend on the ADU type and size, property complexity, required surveys, engineering, consultant reports, utility work, jurisdictional requirements, and number of review cycles. AXMIS defines the expected scope before design advances.
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
The new foundation, walls, and roof must connect properly to an existing building. Structural movement, water protection, utility routes, finishes, and construction around an occupied home all require careful coordination.
The timeline depends on the ADU type, property conditions, design complexity, required consultants, jurisdiction workload, plan-check comments, and revision cycles. A project-specific schedule is prepared after feasibility review.
Yes. AXMIS can evaluate an existing plan set for completeness, constructability, scope alignment, utility strategy, outstanding corrections, cost assumptions, and current permit status before recommending the next steps.
