Ground-Up Custom Homes
From raw lot to final walkthrough. Foundations, structure, envelope, finishes — managed as one accountable build.
Luxury Renovations
Whole-home remodels, kitchens, and baths executed to museum-grade tolerances.
Architectural Concrete & Steel
Board-formed and exposed concrete, custom steel, the structural detailing that defines high design.
Hillside & Complex Sites
Caissons, shoring, retaining systems, and difficult-access logistics on the sites others decline.
Pre-Construction & Budgeting
Constructability review, value engineering, and real numbers with your architect before you commit.
Project & Owner's Rep
Single point of contact, weekly OAC meetings, open-book accounting, and tight trade coordination.
Interior Build-Out
Custom millwork, stone, specialty finishes, and the integration of design and trades.
Systems Integration
Smart-home, AV, lighting, HVAC, and mechanical systems coordinated from rough-in to commissioning.
Fire Rebuild Consulting
We've bid and scoped multiple rebuilds in Altadena and the Palisades. We know the insurance timelines, structural demo, and agency permitting cold.
Why YAF
Why the hard projects come to us.
Complexity tolerance
Hillside builds, architectural concrete, custom steel, multi-system integration. The hard stuff is the point.
Architect-first
We treat your architect as a peer, not an obstacle — and we protect the design intent through execution.
One point of contact
You get Yousef or a dedicated superintendent. No corporate phone tree, no coordinator you've never met.
Real transparency
Weekly OAC meetings and open-book communication. No surprise change orders buried in the schedule.
Scale without distance
The systems and insurance to handle large-scale projects, with the attention of a builder who answers your call directly.
Bonded & insured
CA License #1113132. Fully bonded and insured for high-value residential work across LA.
How it goes
The process, end to end.
First conversation & site walk
We review your plans, walk the site, and tell you straight whether we're the right builder for it.
Pre-construction & budget
Constructability review with your architect, real line-item budgeting, and value engineering where it helps.
Permitting & preparation
We handle agency coordination, scheduling, and trade procurement so the build starts clean.
Construction
Weekly OAC meetings, open-book accounting, and a single point of contact through every phase.
Finish & handover
Punch-list to the design team's standard, commissioning, and a clean, documented handover.
Common Questions
What clients ask before they build.
How much does it cost to build a custom home in Los Angeles?+
In 2026, ground-up luxury construction in Los Angeles typically costs between $600 and $1,200+ per square foot, depending on site complexity, architectural design, materials, and finishes. A 5,000 sq ft custom home on a flat lot might start around $3M; hillside sites with architectural concrete, caissons, and custom steel can reach $6M–10M+. YAF Development provides line-item budgets during pre-construction so you have real numbers — not ranges — before breaking ground.
How long does ground-up construction take in LA?+
A typical luxury ground-up build in Los Angeles takes 14–24 months from permit to certificate of occupancy. Permitting alone can take 3–6 months depending on the jurisdiction. Hillside projects with complex foundations and shoring often extend the timeline. YAF Development manages constructability reviews during pre-construction to identify schedule risks before they become delays.
Do you work with our existing architect?+
Yes — that is how we prefer it. YAF Development is not a design-build firm. We work alongside your architect as a construction partner, protecting the design intent through every phase of execution. Weekly OAC (Owner-Architect-Contractor) meetings keep all three parties aligned. Our job is to build what your architect designed, on budget, without compromising the vision.
What areas of Los Angeles does YAF Development serve?+
YAF Development serves all of Los Angeles County, with deep experience in Beverly Hills, Bel Air, Brentwood, Pacific Palisades, Malibu, Encino, Studio City, La Canada Flintridge, Pasadena, Altadena, and Hancock Park. We specialize in the hillside and canyon sites common throughout the Westside, the Valley, and the San Gabriel foothills.
What makes YAF different from other luxury GCs in Los Angeles?+
Three things: complexity tolerance, architect-first approach, and direct access to leadership. We take on the architecturally complex projects — hillside builds, board-formed concrete, custom structural steel — that most GCs avoid. We treat your architect as a peer, not an obstacle. And you work directly with Yousef Al-Fassi or a dedicated superintendent. CA License #1113132, fully bonded and insured.
Last updated: June 2026
Not sure where your project lands?
Run a quick estimate, then send us the plans. We'll tell you straight.
Last updated: June 2026