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.
Types of ADUs We Build
What Can Affect ADU Feasibility?
Before an ADU moves into construction, the property and proposed project should be evaluated carefully. Several site-specific conditions can influence the layout, scope and next steps.
A property-specific review is the best way to determine the practical construction path for a proposed ADU.
ADU Projects Require More Than Construction Alone
Depending on the project and jurisdiction, an ADU may involve architectural plans, engineering, permit review, inspections, utility coordination and other approvals. Construction should be coordinated around the approved project documents and applicable requirements.
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.
Planning & Site Coordination
- Property and project evaluation
- Interior layout and space planning
- Coordination around approved plans and project requirements
Structural Construction
- Detached and attached ADU construction
- Garage conversions
- Framing and structural construction
Kitchen & Bathroom Construction
- Kitchen construction
- Bathroom construction
- Cabinetry, fixtures and interior components
Electrical & Lighting
- Electrical installation and upgrades
- Lighting and electrical systems
- Project-specific circuits and electrical infrastructure
Interior & Exterior Finishes
- Insulation and drywall
- Flooring and interior finishes
- Exterior finishes
Inspections & Completion
- Coordination of required project inspections
- Finishing details
- Final construction and project completion
What Affects the Cost of an ADU?
ADU construction costs can vary considerably because the size, configuration, site conditions, utility requirements, plans and finish selections are different for every property. Some of the main factors include:
ADU Type & Size
A detached ADU, attached ADU and garage conversion can involve different structural, foundation, exterior and interior construction requirements. The overall size and layout also affect the scope.
Site Access & Existing Conditions
Access to the construction area, existing structures, lot conditions and the relationship between the ADU and the primary residence can influence how the work is planned and performed.
Utilities & Electrical
Electrical service, circuits, lighting and other project-specific utility requirements can affect the infrastructure needed to support the new living space.
Plans, Permits & Finishes
Approved plans, permit and inspection requirements, kitchens, bathrooms, cabinetry, flooring, fixtures and other finish selections all contribute to the final construction scope.
Because every ADU project is different, a property- and project-specific estimate is the best way to establish realistic pricing for the work you are considering.
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.
Project Consultation
We begin by discussing your property, your goals for the ADU, preferred size and layout, intended use, budget considerations and overall expectations.
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.
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.
Permitting & Pre-Construction
ADU projects may require plans, permits, approvals and inspections from the applicable local authorities. Construction is coordinated around the approved project requirements.
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.
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.
ADU Project Photos
ADU project photography will be added as suitable project images become available.
Ready to Talk About Your Property?
Tell us what type of ADU you are considering and where the property is located. We can discuss the next step for your project.
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.
Related Services
If your ADU project connects with other property improvements, these Southline Construction services may also be useful.
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.