ADU Construction Built Around Your Property
Every property presents different opportunities and challenges. Lot size, existing structures, access, utilities, layout, zoning requirements and the way you intend to use the new space can all influence the right approach to an ADU project.
Southline Construction takes a project-specific approach rather than treating every ADU the same. We work to understand your goals, evaluate the construction requirements and develop a clear scope of work before moving forward. The result is an ADU planned around your property, your priorities and how the space will actually be used.
Complete ADU Construction Services
We can assist with the major stages involved in bringing an ADU project from concept to completion. The exact scope depends on the property, approved plans and requirements of the individual project.
- New detached ADU construction
- Attached ADU construction
- Garage conversions
- ADU additions and conversions
- Interior layout and space planning
- Kitchen and bathroom construction
- Electrical installation and upgrades
- Lighting and electrical systems
- Framing and structural construction
- Insulation and drywall
- Flooring and interior finishes
- Exterior finishes
- Coordination of required project inspections
- Final construction and project completion
From an Idea to a Finished Living Space
Building an ADU involves much more than constructing four walls. A successful project requires careful coordination between planning, design, permitting, construction, utilities, inspections and finishing work. Our goal is to make that process easier to understand and easier to manage.
1. Project Consultation
We begin by discussing your property, your goals for the ADU, preferred size and layout, intended use, budget considerations and overall expectations.
2. Property & Project Evaluation
We review the proposed construction area and identify important project considerations such as access, existing structures, electrical requirements, utilities and site conditions.
3. Planning & Scope Development
Once the project requirements are understood, we establish a clearer construction scope and coordinate the next steps needed to move the project forward.
4. Permitting & Pre-Construction
ADU projects may require plans, permits, approvals and inspections from the applicable local authorities. We help coordinate the construction process around the approved project requirements.
5. Construction
Construction is completed according to the approved project scope, with attention to workmanship, structural requirements, electrical systems, finishes and the details that make the space comfortable and functional.
6. Final Details & Completion
As construction approaches completion, we address finishing details and required project inspections so the new ADU can move toward final completion.
Designed for the Way You Plan to Use It
An ADU can serve many purposes, and understanding that purpose early can help shape a better design. Your new space might become:
- A private living area for family members
- Additional space for aging parents
- An independent guest residence
- A long-term rental unit
- A home office with greater privacy
- Flexible living space for changing family needs
- An investment in the long-term usefulness of your property
Whatever your plans may be, we focus on creating a space that feels intentional and integrated with the property rather than simply added to it.
Quality Construction From the Structure to the Finishing Details
A well-built ADU should provide more than additional square footage. It should feel comfortable, functional, durable and consistent with the quality of the main property.
We pay attention to both the visible and behind-the-wall components of construction—from framing and electrical systems to lighting, flooring, cabinetry, fixtures and final finishes. Our objective is straightforward: build a space that homeowners can feel confident about for years to come.
ADU Electrical Construction
Electrical planning is an important part of ADU construction. Depending on the project, a new ADU may require dedicated circuits, new lighting, receptacles, electrical panel modifications or other electrical infrastructure.
Southline Construction holds both B General Building and C-10 Electrical classifications under California contractor license #1042863, allowing us to bring general construction and electrical experience together within the ADU construction process.
ADU Construction Across Los Angeles County, Orange County & the South Bay
Southline Construction provides ADU construction services throughout communities in Los Angeles County, Orange County and the South Bay, including Torrance, Redondo Beach, Manhattan Beach, Hermosa Beach, Palos Verdes Estates, Rancho Palos Verdes, Rolling Hills Estates, Long Beach, El Segundo, Culver City, Marina del Rey, Newport Beach, Irvine, Huntington Beach and surrounding communities.
ADU Construction Frequently Asked Questions
What types of ADUs can Southline Construction build?
Depending on your property and approved project plans, ADU projects can include detached units, attached units, garage conversions and other configurations that create independent living space.
Do ADUs require permits?
ADU projects generally require plans, permits, approvals and inspections from the applicable local authorities. The exact requirements depend on the property, project scope and local jurisdiction.
Can an existing garage be converted into an ADU?
A garage conversion may be an option for some properties. Feasibility depends on the existing structure, site conditions, utilities, applicable requirements and the plans approved for the project.
Can you handle the electrical work for an ADU?
Yes. Southline Construction holds a C-10 Electrical classification in addition to its B General Building classification. Electrical scope varies by project and may include circuits, receptacles, lighting, panel work and other required electrical infrastructure.
How long does an ADU project take?
The timeline varies based on design, permitting, project size, site conditions, construction scope, inspections and material selections. We prefer to evaluate the specific project before discussing a realistic construction schedule.
Where do you provide ADU construction services?
We serve communities throughout Los Angeles County, Orange County and the South Bay, including Redondo Beach, Torrance, Manhattan Beach, Long Beach, Palos Verdes Estates, Newport Beach, Irvine and Huntington Beach.
Start Planning Your ADU
If you are considering adding an ADU to your property, the first step is understanding what you want to build and what your property may require. Tell us about your project, your property and the type of space you are considering. Southline Construction can help you evaluate the construction scope and determine the next steps toward bringing your ADU project to life.
Southline Construction — CSLB License #1042863 (B & C-10), General Building & Electrical Contractor.