Building from the ground up
Everything else on this site walks you through permits for a project on a home or building that already exists. Building something brand new - a house, a detached garage or accessory dwelling unit, or a commercial building - is a bigger process, but it breaks down into a clear, predictable sequence. Here's what's actually involved, and specifically who you'll need on your team at each point.
This guide applies whether you're planning a new single-family home, a new detached structure like a garage, workshop, or accessory dwelling unit, or a new commercial building. Where the process differs by project type, it's called out within each step below.
Who and what you'll need before you can even start
Before you can break ground - before you can even file your first application - a few people and documents typically need to be lined up. This is the part that catches people off guard, so here it is up front:
A current survey from a New Jersey‑licensed land surveyor, showing your lot's exact boundaries. Nearly everything downstream - the zoning check, the site plan, the construction permit - depends on this being accurate and current.
A licensed architect or professional engineer (P.E.) to design and seal your plans. This is required for a full new building in almost all cases - the narrow owner-occupied-home exemption is the exception, not the rule, so confirm it with your construction office rather than assume it applies.
Not legally required, but common if your project needs a variance or site plan approval - that's a public hearing process, and an attorney who does this regularly can save real time and missteps.
A licensed engineer or certified soil scientist to perform a percolation test, if you won't be on public sewer. This determines whether - and how - the lot can support a septic system, and it needs to happen before you get too far into design.
You'll need one for the construction and inspection stages regardless, but it's worth lining one up early - good contractors book out months in advance, and many will flag site issues before you've sunk money into plans.
A construction loan or funding source confirmed before you apply. Land use board approval alone can take a few months, and lenders often want to see your approvals lined up before releasing funds.
The process, stage by stage
1 Zoning approval
Before a construction permit can be issued for a new building, New Jersey requires zoning approval covering the use and location of what you're proposing. Your municipality's zoning officer checks things like permitted use, setbacks, height, and lot coverage against the local zoning ordinance.
If your plans fit the ordinance as written, this step can move quickly - many towns aim to act on a zoning permit within about 10 business days. Detached structures like garages, workshops, and accessory dwelling units go through this same zoning check, though what's allowed varies a lot by municipality - New Jersey doesn't currently have a statewide right to build an accessory dwelling unit, so it comes down entirely to local zoning. Commercial projects almost always get a closer look given parking, signage, and use requirements.
2 Land use board approval (only if needed)
If your project doesn't fit the zoning ordinance as written - you need a variance, you're dividing a larger lot into a new buildable lot (subdivision), or your municipality requires formal site plan approval for your type of project - it goes to a public hearing before the Planning Board or Zoning Board of Adjustment.
Commercial construction almost always needs site plan approval, regardless of whether a variance is involved. This is the step that can add the most time to a ground-up project - often a few months - since it involves public notice and a hearing. Many new single-family homes on an existing, already-approved lot skip this step entirely if the plans meet zoning as-of-right.
3 Site and utility prep
Once zoning is squared away, there's groundwork - literally. This can include a property survey, soil testing if you'll be on well and septic instead of public water and sewer, an elevation certificate if you're in a flood zone, and separate applications to get electric, gas, and water/sewer service run to the site.
If you're on septic, well and septic permits typically go through your county health department rather than the local construction office - worth confirming early, since it can run on its own timeline.
4 Construction permit application
This is where the New Jersey Uniform Construction Code (UCC) comes in. One application covers the whole project, but it's reviewed separately by each subcode office that applies: building, electrical, plumbing, and - for most commercial projects and many residential ones - fire protection and mechanical. Each subcode official has up to 20 business days to review and act on their part.
For a full new home or commercial building, plans generally need to be prepared and sealed by a licensed architect or engineer. Owner-occupied homes sometimes qualify for a narrower exemption - worth confirming with your construction office before assuming either way.
5 Inspections during construction
Each subcode requires inspections at set points as work progresses, not just at the end - things like footing and foundation, framing, and rough electrical, plumbing, and mechanical before walls close up. Skipping a required inspection is one of the most common - and most expensive - new-construction mistakes, since closed-up work sometimes has to be opened back up to verify it.
6 Certificate of occupancy
Once every applicable subcode passes its final inspection, the construction office issues a Certificate of Occupancy - this is what makes the building legally occupiable. Commercial projects sometimes need additional sign-off depending on the specific business, such as a health department review for food service. No certificate of occupancy means no moving in, even if construction looks finished.
Once you know which subcodes and inspections apply to your project, or you're at the point of estimating a specific piece of the work, start the project wizard for permit and fee details by municipality. Have questions about your specific lot or project? Get in touch.