Additions · 08
More room, without losing the home.
Additions designed to feel original — same proportions, same light, more space.
Home additions in Los Angeles
Add square footage that feels like it was always there.
A good addition is the one nobody can point to. Sage n' Slate plans and builds residential additions across Los Angeles — designed to match the existing home's proportions, materials, and light, and engineered to integrate cleanly with the original structure.
From a single new room to a full second-story addition, the same team carries the project from feasibility through final walk-through.
Month typical addition
Team, design to build
Drawings, in-house
Why homeowners choose us
What a unified team brings to an addition.
An addition lives or dies on how well it ties into the existing house — structurally, architecturally, and visually. That's a coordination problem, and coordination is what we're built for.
Architecture and construction under one roof
Structural engineering coordinated from day one
Materials matched honestly to the existing home
Senior framers and finishers
invisible seams
Honest schedule, clear scope, transparent pricing
Our process
How an addition moves through the studio.
Same disciplined sequence as a full remodel, scaled to the addition's footprint.
Discovery
site walk, zoning review, lifestyle and budget conversation
Concept design
massing, plan options, and exterior fit
Design development
interior plans, materials, and finishes
Engineering
structural integration with the existing home
Construction documents and permits
Construction
foundation, framing, envelope, finishes
Inspections, walk-through, and handover
What we build
The additions we specialize in.
Residential additions across the city, at every scale.
- 01Room additions and home extensions
- 02Second-story additions
- 03Primary-suite and bathroom additions
- 04Kitchen expansions
- 05ADUs and detached guesthouses
- 06Garage-to-living conversions
Service area
Sherman Oaks and greater Los Angeles.
Sage n' Slate is based in Sherman Oaks and builds additions for homeowners throughout Los Angeles and the surrounding areas.
Service Area
34.05° N / 118.24° WLos Angeles & surrounding neighborhoods.
Common questions
Asked and answered.
How long does a home addition take?
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Most additions run 6–10 months of construction, with a design and permitting phase of 3–6 months before that.
Do additions require permits?
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Yes. Any addition that changes the footprint or adds livable square footage requires permits. We handle the submission and review process.
How will the addition tie into the existing home?
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That's the architectural question. We match proportions, rooflines, and materials so the addition reads as original rather than tacked on.
Can we live in the home during the addition?
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Usually yes, with some inconvenience during framing and envelope work. We'll walk you through what to expect week by week.
Start a project
Let's talk about your home additions.
Tell us a little about the home and the scope. We'll come back within two business days.