A custom build is a sequence of decisions and verified handoffs. The exact workflow depends on the property, jurisdiction, design team, and contract, but six controlled phases provide a useful planning model: definition, design coordination, approvals, preconstruction, construction, and closeout.
Each phase should produce what the next phase needs.
Phase 1: Define the project
The owner and project team establish the intended use, property, required spaces, quality priorities, decision constraints, and available records. They separate required outcomes from preferences and identify the questions that need investigation.
The output is a written project definition, not a final price. It should show the current goals, known constraints, documents on hand, and next decisions.
Phase 2: Coordinate design and construction
The architect and consultants develop the design while the construction team reviews access, sequence, existing conditions, systems, material interfaces, and procurement risks.
The team should maintain an open-issues log. Each item needs an owner, required information, decision date, and effect on later work. This reduces the chance that a design question appears for the first time during construction.
Phase 3: Secure approvals
The project enters the applicable planning, building, and other agency processes. Los Angeles Department of Building and Safety explains that plan review can include building, mechanical, electrical, plumbing, and grading plans, depending on the project.
The approval path is property-specific. Hillside, coastal, historic, or other controls may add reviews. Complete documents help the agency evaluate the work, but no producer should promise a universal approval duration.
The output is an approved or permit-ready set with remaining conditions clearly recorded.
Phase 4: Complete preconstruction
Preconstruction converts the approved design into a field plan. The team closes critical selections, confirms responsibility, aligns procurement, reviews long-lead items, prepares site logistics, and updates the scope and schedule.
The contract and exhibits should make allowances, exclusions, owner-supplied items, permit responsibility, payment milestones, and the change process visible.
The output is a coordinated start package and a list of any controlled open items.
Phase 5: Build and inspect
Construction proceeds through the sequence required by the work and inspections. LADBS describes stages that include excavation, foundation, framing, masonry, electrical, plumbing, exterior finishing, heating and cooling, waterproofing, and other required inspections. The actual sequence varies by project.
The team tracks decisions, submittals, site observations, inspections, schedule updates, and changes. When an existing condition differs from the documents, the appropriate professional evaluates it and the change process records the response.
The output is completed, inspected work and a current closeout list.
Phase 6: Close out the project
Closeout includes final inspections, correction items, owner orientation, warranties and manuals where applicable, final documents, and confirmation of remaining responsibilities.
The team should distinguish a cosmetic punch list from regulatory completion and contract closeout. The owner needs a clear record of what is complete and what remains.
What the owner should see throughout
- A current scope and decision log.
- A schedule with assumptions and updates.
- Written changes with cost and schedule effects.
- Selection and procurement status.
- Inspection and correction status.
- A clear accountable contact.
The format can vary. The information should not disappear between phases.
Use the phases as gates
Do not advance because a calendar says it is time. Advance when the required decisions and documents are ready. Definition supports design. Design supports approvals. Approvals support preconstruction. Preconstruction supports field work. Construction records support closeout.
Related Jencor planning pages
Sources
- Los Angeles Department of Building and Safety, plan review and inspection overview
- Los Angeles City Planning, zoning review
Plan for cost and home value
Compare remodeling scope, published cost examples and the difference between estimated resale recovery and value while you own the home. The guide includes dated Los Angeles benchmarks and long-term planning considerations.
Compare new custom construction costs and value
Related Jencor services
These service pages connect the planning topic to the project options, construction scope, and next steps Jencor can review.
Related reading
- Remodel, Add On, or Build New: How to Decide
- Boutique Builder vs. High-Volume General Contractor
- Building or Remodeling on a Los Angeles Hillside Lot
Questions
What is the first phase of a custom home build?
Define the intended use, property, required spaces, quality priorities, available records, constraints, and open investigations before treating the scope as final.
When does a custom-build price become reliable?
Reliability improves as design, specifications, site information, approvals, allowances, exclusions, and procurement assumptions become more complete.
What should an owner see throughout the build?
The owner should receive clear decisions, current scope and schedule information, documented changes, inspection status, and identified next actions.
Planning a project in Los Angeles? Send Corey a note or call (310) 770-7707. Rules and requirements depend on the specific property; confirm with the city or county before you build.