How long does a home renovation take in New Jersey?

Planning takes longer than building

Among U.S. homeowners who renovated in 2025, kitchen projects averaged 9.5 months of planning and 5.8 months of construction, and primary bathrooms 8.4 and 4.8 months, according to the 2026 U.S. Houzz & Home Study. The averages include do-it-yourself work, so treat them as a broad benchmark rather than a schedule.

The pattern holds for every project: design, selections and pricing take longer than the build. Every product chosen before demolition is one less reason for the crew to stop and wait.

What adds time in New Jersey

• Permits. Work beyond ordinary maintenance needs a construction permit before it starts (N.J.A.C. 5:23-2.14), and a contractor may not begin until the permits are issued (N.J.A.C. 13:45A-16.2).
• Inspections. In a one- or two-family home, work stops until each required inspection is made, including the mid-point inspections of framing, rough plumbing and rough electrical (N.J.A.C. 5:23-2.18).
• Zoning. An addition that changes the footprint or height of the house can need zoning approval before the construction permit.
• The house. Older homes hide rot, old wiring and failed plumbing that only show once walls are open, and paid work that disturbs paint in a home built before 1978 follows the EPA's lead-safe work practices.
• Selections and lead times. Custom cabinets, special-order tile and measured glass all take time to arrive.

The dates belong in the contract

New Jersey requires a home improvement contract to state the dates or time period on or within which the work will begin and be completed (N.J.A.C. 13:45A-16.2). Any change to those dates must be agreed to in writing, and a contractor who is delayed by something outside its control must tell you in writing, with the reason and when the work will begin or finish.