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Full-Service Development & Construction Company in Los Angeles

Let Us Do The Heavy Lifting

Architect reviewing residential construction plans and architectural drawings during project planning phase in Pasadena.

Design Services

Architecture, engineering, and permitting — aligned with real-world construction from day one.

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Construction team reviewing framing progress on a residential build site in Pasadena.

Full-Service Construction

Ground-up builds, additions, and renovations managed from foundation to final inspection.

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Not sure where to start? That’s exactly what we’re here for.

Our 5-Stage Development & Construction Process 

 Every project is unique, but our structured process remains consistent from feasibility through completion. 

Initial Review & Feasibility

We begin with a detailed site review, zoning analysis, and early budget alignment. Existing conditions are evaluated and rebuild requirements confirmed so you have clear expectations before design begins.

Design & Engineering Coordination

Architecture and engineering are aligned early to reduce delays and avoid redesigns later. Structural planning, grading considerations, and permit-ready documentation are coordinated from the start to ensure a smooth path forward.

Permitting & Approvals

Our team manages city coordination on your behalf, handling plan-check revisions and compliance requirements. Clear timelines and proactive communication keep your project moving toward approval without unnecessary surprises.

Construction & Structural Build-Out

From excavation and foundation work to framing and system installation, our dedicated team manages the build with consistent oversight and clear communication. Quality and accountability remain central throughout construction.

Final Construction & Completion

We complete all final inspections, organize documentation and warranties, and ensure a smooth handoff. Even after close-out, our team remains available to support long-term performance and future needs.

The Numbers Speak For Themselves

30+
Years Experience
650+
Projects Completed
300+
Clients

Recent Residential Projects in Los Angeles

From hillside projects to large-scale multifamily developments — explore our recent work across Los Angeles and Pasadena.

  • Modern single-story home with blue vertical siding, large floor-to-ceiling windows, and landscaped front yard.
  • Contemporary open-concept kitchen with wood cabinetry, stainless steel appliances, and natural light, modern residential interior design
  • Mid-century ranch style home with landscaped front yard and mountain views in Pasadena, classic California residential architecture
  • Contemporary open-concept kitchen with wood cabinetry, stainless steel appliances, and natural light, modern residential interior design-1
  • Luxury modern two-story home with pool, large glass walls, and rooftop terrace, contemporary California residential architecture
  • Mid-century inspired dining and kitchen area with bold retro wallpaper, modern lighting, and open-concept interior design
View Our Projects

What Our Clients Say

Hear from homeowners and developers who trusted ATP for their residential and multifamily projects.

“Incredibly knowledgeable and relentlessly hardworking — I can’t recommend them more.”

ATP helped navigate everything from home renovations to complex commercial development. They truly care about clients and collaborators.

★★★★★
Alex Ashbaugh,
Google review

“First-class supervision and craftsmanship on our 13-unit build.”

ATP served as GC and delivered beyond scope. Integrity, attention to detail, and real ownership — a rare and valuable trait. Highly recommend.

★★★★★
Ben Rocca,
Google review

“Rare to find someone so transparent and genuinely dedicated.”

Thanks to Sergio and the team for professionalism, sincerity, and client-first support throughout the process.

★★★★★
Dexter C,
Google review

“High-quality work that exceeded my expectations.”

Professional, reliable, and clear communication. The team kept us on schedule and made the entire process smooth and stress-free.

★★★★★
Luis Bañuelos,
Google review

View All Reviews on Google