The work
We build what others won't.
Most general contractors in Los Angeles stick to straightforward builds on flat lots with standard finishes. We take the projects they pass on — hillside construction with complex grading, architecturally demanding designs with custom steel and board-formed concrete, homes that require tight coordination between multiple design professionals and city agencies.
We're currently building an 11,000 sq ft ground-up luxury residence in La Cañada Flintridge. The site is open to walk if you'd like to see how we work — a level of transparency most GCs can't offer, because most don't have an active site they're proud enough to show.
Start to finish
What ground-up construction actually involves.
Pre-Construction
Site analysis, soils and geotechnical reports, structural engineering coordination, and permit applications. We handle LADBS, county, fire department, and HOA if applicable.
Foundation & Framing
Excavation, grading, foundation, and framing. On hillside builds this is where the real complexity lives — caisson drilling, retaining walls, and engineered fill.
MEP & Rough-Ins
Mechanical, electrical, and plumbing rough-ins, smart-home planning, and HVAC design for large-format spaces. This is where cutting corners shows up years later — we don't.
Finishes & Close-Out
Interior finishes, custom millwork, imported stone and tile, fixtures, landscaping, and final inspections. Weekly OAC meetings keep every trade and supplier on schedule.
Real numbers
What it costs to build ground-up in LA.
In 2026, a luxury ground-up build in Los Angeles runs $600 to $1,200+ per square foot, depending on finish level, site conditions, and design complexity. A 5,000 sq ft custom home on a flat lot typically starts around $3M in construction cost; hillside sites with architectural concrete, caissons, and custom steel can reach $6M–10M+.
Key cost drivers we see repeatedly: hillside sites add 15–30% for grading, caissons, and retaining; architectural concrete runs $40–80/sq ft installed; custom steel moment frames $15,000–$50,000+; smart-home integration $50,000–$200,000+. We provide detailed, line-item estimates broken down by trade — no surprise change orders.
Architect-first
We execute your architect's vision.
We're not a design-build firm. We don't compete with your architect — we protect the design intent through execution. In OAC meetings we're there to solve problems and flag constructability issues early, not to value-engineer the soul out of a project. If you're an architect designing a complex home in LA and you need a GC who understands what you're trying to build, let's talk.
Common Questions
What clients ask before they build.
How long does it take to build a custom home in Los Angeles?+
A luxury ground-up build in LA typically takes 14 to 24 months from permit to certificate of occupancy, plus 3 to 6 months of permitting before construction starts. Hillside builds with complex foundations run to the longer end.
What does it cost to build a custom home in LA?+
In 2026, ground-up luxury construction in Los Angeles runs $600 to $1,200+ per square foot depending on finish level, site conditions, and design complexity. Hillside sites with caissons and architectural concrete push toward the top of that range.
Can I visit your current job site?+
Yes. Our 11,000 sq ft ground-up project in La Cañada Flintridge is open for site walks. Seeing our active work is the best way to evaluate what we do.
What is the difference between a GC and a design-build firm?+
A design-build firm controls both design and construction. YAF Development is a general contractor — we execute your architect's design, protecting the intent while managing buildability, schedule, and cost. Your architect keeps creative control.
Ready to build?
Whether you have plans ready to bid or you're just starting, send it over. We'll tell you straight.
Last updated: July 2026