Planning & Pre-Construction

A Clear Path From Concept to Construction

We help organize your goals, existing site conditions, design decisions, technical requirements, and permit steps into a coordinated plan for moving your project forward.

What We Do

Expert Architectural Design & Engineering Work

Planning, architectural design, engineering coordination, and permit support for additions, ADUs, remodels, rebuilds, and other residential construction projects.

  • Existing-condition and site review
  • Concept development and space planning
  • Architectural drawings and construction documents
  • Structural and engineering coordination
  • Permit submittal and plan-check coordination
  • Pre-construction budgeting and constructability review
Plan Your Project
Architectural Design & Engineering service image

Why Choose Us

Better Coordination Before Construction Begins

Early planning helps uncover site, structural, permitting, and budget considerations before they become field problems. We keep the design and construction sides of the project connected so decisions are practical, documented, and aligned with the work ahead.

  • One coordinated path from initial ideas through construction planning
  • Early review of site conditions, structural needs, scope, and budget
  • Clear communication between the owner, design professionals, engineers, and construction team
Discuss Your Project
Altadena General Contractors team on a project site

Altadena General Contractors Process

Our step-by-step journey from consultation to optional care

1

Consultation & Planning

  • Get In Touch - Reach out by phone, email, or form to schedule your free consultation.
  • On-Site Assessment - We review your property, goals, and project requirements in detail.
  • Custom Plan & Quote - We provide a tailored scope with clear, transparent pricing.
2

Design & Approval

  • Concept Development - We create a practical solution that balances style, function, and long-term performance.
  • Selections & Specifications - We finalize materials, finishes, and key project details.
  • Final Approval - We refine the plan with your feedback before work begins.
3

Installation & Construction

  • Project Kickoff - Our licensed team prepares the site and sets a clean, organized workflow.
  • Expert Execution - We complete the approved scope with quality craftsmanship and dependable communication.
  • Quality Control - We perform checks throughout the job and make adjustments as needed.
4

Final Walkthrough & Completion

  • Client Walkthrough - We review the completed work with you to confirm every detail meets expectations.
  • Final Touches - We address punch-list items and ensure the project is clean and complete.
  • Care Guidance - We share practical maintenance tips to protect your investment.

Get Your Free Consultation

Transform your property with dependable construction solutions.

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Other Services We Offer

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Remodels & ADUs

Plan and build a more functional home with coordinated remodeling, room additions, garage conversions, and accessory dwelling unit construction in Altadena and nearby communities.

Learn about Remodels & ADUs
Foundations & Slabs service image

Foundations & Slabs

New foundations, structural slabs, footings, slab replacement, and repair coordination completed with careful excavation, subgrade preparation, reinforcement, moisture planning, placement, and curing.

Learn about Foundations & Slabs
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Grading & Demolition

Selective demolition, site clearing, excavation support, rough and finish grading, and debris removal handled with a controlled process that prepares the property for the next phase of work.

Learn about Grading & Demolition

Service FAQs

Common Questions About Architectural Design & Engineering

Do you provide architectural and engineering services directly?

We help manage and coordinate the planning process and involve the appropriate architectural and engineering professionals based on the project. The exact team, responsibilities, and required professional services are confirmed before design work begins.

What types of projects can you help plan?

We can support home additions, ADUs, interior remodels, rebuilds, structural alterations, garage conversions, and other residential projects that require organized planning, drawings, engineering, or permit coordination.

Can you help determine whether my project is feasible?

Yes. Early planning can include a review of the property, existing conditions, intended use, approximate scope, structural considerations, access, and likely approval requirements. This helps identify important constraints before the project moves into detailed design.

Can you help with permits and plan-check corrections?

Yes. Depending on the project scope, we can assist with document preparation, permit submittal coordination, responses to plan-check comments, and communication with the appropriate design professionals and reviewing agencies.

Can you build from plans I already have?

Yes. We can review existing plans to better understand the proposed scope, construction requirements, and whether additional details, engineering, updates, or permit corrections may be needed before work begins.

How long does the design and permitting phase take?

Timing varies based on project size, design complexity, required engineering, owner decisions, revisions, and the reviewing agency. After learning more about the property and scope, we can outline the expected steps and provide a more realistic planning timeline.