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Construction Timeline Explorer

A sequencing tool for a Santa Barbara–area residential project — from pre-design due diligence through final closeout. Every phase below carries a planning placeholder in weeks that you adjust; the explorer recomputes earliest start and finish for every phase and highlights the critical path. It produces no dates and no deadlines, and it is not an agency guarantee — review durations are your range, informed by current official published guidance.

Sources verified 2026-10-23. Planning education only — not a contractor commitment, an agency promise, or a basis for contractual milestones.

How the sequencing works

Each phase lists the phases that must finish before it can start. Some phases genuinely run in parallel — specialty engineering and design review can both follow concept design — while others only look parallel on paper. The explorer computes the earliest each phase can begin given its dependencies, and marks the critical path: the chain where any slip moves the whole project. Agency plan check is deliberately the least predictable phase; treat it as a range you supply, never a figure this tool invents.

1 · Confirm the jurisdiction track

City, County and Hope Ranch paths differ materially. A schedule built on the wrong jurisdiction is worse than no schedule.

Confirm jurisdiction before trusting any schedule

City and County processes differ materially. A schedule built on the wrong jurisdiction is worse than no schedule.

Use the Permit Navigator to confirm jurisdiction first

2 · Adjust each phase, then read the schedule

Durations are whole weeks from a project start you choose. Zero is allowed (a phase that does not apply to your scope); the math updates immediately.

  1. 1. Pre-design due diligencecritical path

    Due diligence

    Parcel research, title and easement review, existing-conditions documentation, constraint screening.

    Earliest window: week 0 → week 6

  2. 2. Concept and schematic designcritical path

    Design · after Pre-design due diligence

    Design direction, massing, and scope definition with your architect or designer.

    Earliest window: week 6 → week 16

  3. 3. Specialty engineeringcritical path

    Design · after Concept and schematic design

    Structural, geotechnical, civil or other engineering as the site requires. Can overlap late design where your team agrees.

    Earliest window: week 16 → week 24

  4. 4. Design / architectural review

    Review · after Concept and schematic design

    Jurisdiction-dependent: City boards, County review, or Hope Ranch association review. Duration is an owner-supplied range — check current official guidance.

    Earliest window: week 16 → week 24

  5. 5. Permit application submissioncritical path

    Permit · after Specialty engineering, Design / architectural review

    Complete package submitted through the correct portal for your jurisdiction.

    Earliest window: week 24 → week 26

  6. 6. Agency plan check and revisionscritical path

    Permit · after Permit application submission

    The least predictable phase. Treat as a range you supply from current published agency guidance — never a promised date.

    Earliest window: week 26 → week 38

  7. 7. Permit issuance and mobilizationcritical path

    Permit · after Agency plan check and revisions

    Fees, issuance, contractor mobilization, long-lead ordering.

    Earliest window: week 38 → week 41

  8. 8. Structural workcritical path

    Construction · after Permit issuance and mobilization

    Demolition, foundation, framing — the phases inspections gate most heavily.

    Earliest window: week 41 → week 55

  9. 9. Rough mechanical, electrical, plumbingcritical path

    Construction · after Structural work

    Rough-in trades, each with its own inspection before concealment.

    Earliest window: week 55 → week 63

  10. 10. Inspections and envelope closecritical path

    Construction · after Rough mechanical, electrical, plumbing

    Required inspections passed before insulation and drywall conceal the work.

    Earliest window: week 63 → week 69

  11. 11. Finishes and fixturescritical path

    Construction · after Inspections and envelope close

    Cabinetry, tile, flooring, trim, fixtures — the phase most sensitive to selection lead times.

    Earliest window: week 69 → week 81

  12. 12. Final inspection and closeoutcritical path

    Closeout · after Finishes and fixtures

    Final sign-offs, punch list, documentation handover, permit finalization.

    Earliest window: week 81 → week 85

Earliest completion: week 85 from your chosen start

A week offset, not a calendar date — there is deliberately no start date here, so nothing in this schedule can be mistaken for a municipal deadline or a commitment.

3 · Export, import or print your scenario

The export contains only your jurisdiction track and week durations — no address, no names, nothing identifying. Keep what-if scenarios as separate files and compare them.

Questions to bring to your team

  • Which phases in this schedule can genuinely run in parallel on my project, and which only look parallel on paper?
  • What is the current published plan-check turnaround for my jurisdiction, and where is it published?
  • Which long-lead items (windows, cabinetry, panels) should be ordered before permit issuance to protect the finish phase?
  • What inspection sequence applies to my scope, and what work cannot be concealed before each inspection?
  • If agency review takes twice my assumed range, which downstream commitments become expensive to unwind?

Decision checkpoints

  • Jurisdiction confirmed before any schedule is trusted — City and County paths differ materially
  • Agency review durations come from current published guidance or your own range, never from a contractor's optimism
  • Design review and permit review distinguished — they are separate gates with separate timelines
  • Hope Ranch only: association approval tracked as a separate private track alongside the County permit
  • Every duration in the schedule is one you can explain and defend

When to involve a professional

  • Architect or designer of record

    To sequence design, engineering and review realistically — and to tell you which phases can overlap without rework risk.

  • General contractor

    To validate construction-phase durations against actual crew sequencing, inspections and long-lead procurement.

  • Permit expeditor or plans examiner consultation

    When published processing guidance is unclear or your scope touches multiple review bodies.

What this tool does not do

  • This tool produces no dates and no deadlines — only week offsets from a start you choose.
  • Agency processing times are never prefilled: review durations are your range, informed by current official published guidance.
  • No schedule here is an agency guarantee, a contractor commitment, or a basis for a contractual milestone.
  • Association approvals (Hope Ranch) are private processes; this tool tracks them but cannot predict them.
  • Nothing you enter leaves your browser unless you explicitly export a file.

Official sources