Custom homes & additions
Second Story Additions.
Build up with a sound plan from the ground up.
Vertical expansion with structural clarity, temporary living plans, and finishes that connect to the existing home.
Coastline DC Inc. · California general contractor · Since 2002
Thoughtful work, from the start
Build up with a sound plan from the ground up.
Coastline manages second-story additions with foundation and framing evaluation, engineering coordination, permitting, weather protection, and finish work.
We plan for occupied homes carefully: access, dust control, temporary roofing, and weekly communication.
What we can plan with you
- Structural engineering coordination
- Existing foundation review
- Floor and roof framing
- Stair and circulation planning
- Utility extensions
- Exterior and interior finishes
The final inclusions are confirmed in your written proposal. Engineering, specialist trade work, and permits are coordinated as the project requires.
A clear way forward
From the first call
to the final walkthrough.
Talk it through
Share your goals, property location, priorities, and the problems you want to solve.
Define the work
Review site conditions, selections, plans, and a written scope before committing to construction.
Build with a plan
Coordinate the work, trades, access, and inspections around the agreed project scope.
Review the details
Walk through the finished work together and identify any remaining agreed items.
Before you begin
Good questions.
Clear next steps.
A little planning now helps you make better decisions about the work ahead.
Can my foundation support a second story?
That depends on existing structure, soils, and proposed loads. Evaluation and engineering determine feasibility before design is finalized.
Will we need to move out during construction?
Some projects allow partial occupancy; others require temporary relocation during framing or roof work. We assess this early.
How long do permits take?
Jurisdiction and plan complexity drive timing. We set expectations after reviewing the city or county process for your address.
What affects the cost of second story additions?
Access, existing conditions, dimensions, materials, engineering, and permit requirements all affect the proposal. A site-specific written scope is more useful than an online price guess.
Where do you work?
Our primary service area is Los Angeles County and Ventura County. Tell us the project address so we can confirm fit and availability.
Plan the whole project
Related services.
Let's talk about your project
A great result
starts with a conversation.
Tell us what you have in mind and where the work is located. We will review the details and contact you to discuss a site visit and the next steps.
Free initial consultation. Your construction proposal will be based on the actual scope, site conditions, selections, and permit requirements.