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A renovation timeline is a chain of permissions, decisions, materials, trades, and inspections. The earlier the chain is visible, the more honestly the project can be planned.
A useful starting point
01
The company planning figure includes 3–5 months for design and pre-construction, 4–7 months for construction, and about 1 month for close-out. A Letter of Completion may be part of that close-out where applicable; the DOB authority explains the context.
Read the close-out overview ↗02
Once permits are issued, active construction is typically planned at 4–6 months (16–24 weeks). The total figure still needs room for design, board review, procurement, inspections, closeout, and existing-condition discoveries.
03
Board review, permits, long-lead appliances, stone, windows, millwork, and specialty materials can each affect the start or finish. A useful schedule shows dependencies instead of presenting one optimistic construction duration.
04
Clarify whether a date means design complete, approval received, site ready, demolition start, substantial completion, or final handover. Those milestones should not be collapsed into one promise.
AI-generated illustration. Not a completed Corniel project.
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A property address and a rough scope are enough to begin. The first conversation is about understanding the conditions, not forcing a premature answer.
Corniel Construction
Manhattan renovation guidance
Rules-based prototype · not production-approved
