24+ years in operation
Established in 2002. Coastline has delivered projects across Southern California through changing markets, codes, and expectations.
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Coastline Home Services
Garage Conversion
Convert garage space into living area with insulation, moisture control, electrical, and permitted finishes.
Service Overview
What this service includes
A garage conversion is a habitability project — not just flooring and paint.
Coastline converts garages into living space with attention to insulation, vapor and moisture control, electrical capacity, egress, and finish quality.
When the goal is an ADU-style unit, we align scope with local ADU and parking rules during evaluation.
Homeowners use Coastline when they want licensed accountability for a conversion that must pass inspection and live well year-round.
- Typical project size
- $120K – $300K
- Typical duration
- 3 – 6 months
- Permit requirements
- Yes
Why Coastline
Why homeowners choose Coastline
Professional project management
Dedicated project managers, structured communication, and clear milestones from evaluation through completion.
Licensed & insured
California General Contractor License #813394. Fully licensed, bonded, and insured for your protection.
Documented process
Clear digital communication and documented milestones — without replacing the human relationship at the center of every build.
Our Process
From evaluation to completion
Evaluation
We review your project scope, site conditions, and goals before scheduling a site visit.
Planning
Design coordination, permits, selections, and a detailed scope aligned to your vision.
Pre-construction
Scheduling, site protection, material procurement, and mobilization before work begins.
Construction
Managed build with regular updates, inspections, and a dedicated project manager.
Completion
Final walkthrough, punch list resolution, and project handoff.
Project Gallery
Garage Conversion in progress and completed
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Before & After
The transformation
Project Video
See the work
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FAQ
Frequently asked questions
Yes in most Southern California jurisdictions when creating habitable space. We confirm requirements for your address during evaluation.
Some cities require replacement parking when a garage is converted. That constraint is part of feasibility — not an afterthought.
Not always. An ADU has specific code and utility requirements. We clarify the intended use and jurisdiction path before design locks.
Permits
Common permit information
Permit requirements for garage conversion vary by scope and jurisdiction. Coastline identifies requirements during evaluation. Typical permit level: Yes.
Permit assessment
We review your project scope against local building department requirements before construction begins.
Documentation & submission
Coastline prepares and submits permit applications and schedules required inspections.
Licensed execution
All work performed under California General Contractor License #813394.
Related Projects
Garage Conversion projects
Whole Home
Laguna Beach Whole Home
Laguna Beach
Demolition
Complete Interior Exterior Demolition
Los Angeles
Service Areas
Southern California
Coastline serves homeowners across Southern California counties.
Smart Project Evaluation
Smart Project Evaluation
Share photos, plans, or a description of your project. A Coastline project manager reviews your submission and responds within one business day — no obligation.
Begin with a project evaluation
No obligation. Share your project details and a Coastline project manager will respond within one business day.
Request a Project EvaluationOr Contact Coastline · License #813394