Representing Buyers on New Construction in NJ
The short answer: New construction is a different kind of purchase. The seller is a builder with its own contract and sales staff, and the home comes with a state-mandated warranty. Coverage runs 1 year for workmanship and materials, 2 years for plumbing, electrical and heating and cooling systems, and 10 years for major construction defects (N.J.S.A. 46:3B-3). The builder must be registered with the Department of Community Affairs (N.J.S.A. 46:3B-5). A buyer's agent helps the buyer through those differences on the buyer's side.
Here's what changes when a buyer client wants a brand-new home, and what a NJ agent should watch. For the basics of a first purchase, see our guide to working with first-time buyers. It's general information. Contract and warranty questions belong to the buyer's attorney.
How is buying new construction different from a resale?
A few things stand out:
- The builder's contract. Builders usually use their own purchase agreements rather than a form prepared by an agent.
- The person in the model home. On-site sales staff work for the builder. A buyer who wants someone on their side needs their own agent or attorney.
- Timing. Homes not yet built can have long and moving completion dates.
- The warranty. Every new home sold in NJ comes with a warranty under state law (DCA, New Home Warranty for consumers).
What should the buyer's agent do first?
Get your relationship in writing early. In NJ residential deals, a brokerage must sign a written brokerage services agreement with a buyer "before, or as soon as reasonably practical after," it starts providing services (P.L.2024, c.32). Our buyer agreement guide explains what it must say, including who pays you if the builder doesn't.
Then sort out the builder's own policies before the first visit. Many builders have rules about when an agent must first appear or register a buyer. These are business policies, not state law, so ask for them in writing. Nothing here is a legal requirement we can cite, so treat it as practical advice.
Does attorney review apply to a builder's contract?
The NJ attorney-review clause must appear in residential sale contracts prepared by licensees where the licensee has a commission or fee interest (N.J.A.C. 11:5-6.2(g)). A contract drafted by the builder isn't prepared by a licensee. So the buyer should have a NJ attorney read it before signing and explain what review or cancellation rights it gives. See our attorney review guide for how the clause works on agent-prepared contracts.
How does the NJ new home warranty work?
| Coverage | How long, from the warranty date |
|---|---|
| Defects from faulty workmanship and defective materials | 1 year |
| Faulty installation of plumbing, electrical, heating and cooling systems | 2 years (appliances limited to the manufacturer's warranty) |
| Major construction defects | 10 years |
Source: N.J.S.A. 46:3B-3. DCA says coverage runs from the time of sale (closing) (DCA).
Builders must take part in the State warranty plan or an approved private plan. Builders not in a private plan are automatically enrolled in the State Plan (DCA, New Home Warranty for builders). Buyers should get the warranty booklet at closing. If they don't, DCA says to contact the builder or the warranty administrator (DCA).
What are the warranty claim rules buyers miss?
DCA's consumer guidance is blunt about deadlines (DCA):
- Telling the builder isn't filing a claim. Notice to the builder is not notice to the warranty administrator. A formal claim must be filed before the coverage period ends.
- Pick one path. The owner can file a warranty claim or go to court for the same defects, but not both. DCA calls this "election of remedy."
- The warranty stays with the house and should be transferred to a later buyer.
Under the State Plan, the owner first notifies the builder in writing. The builder has 30 days to inspect and repair covered defects. Except for emergencies and major structural defects, a formal Notice of Claim can't be filed until 120 days from the warranty date (DCA builders page; N.J.A.C. 5:25-5.5).
What should you check before closing?
- Builder registration. No builder may build new homes in NJ without DCA registration. Registration lasts 2 years and requires warranty participation (N.J.S.A. 46:3B-5). DCA says unregistered builders face fines of up to $2,000, with each home sold counted separately (DCA).
- CO or temporary CO. A new building can't be occupied until the construction official issues a certificate of occupancy. A temporary CO can be issued when the work is substantially complete and safe to occupy. It lists the work still to be finished (N.J.A.C. 5:23-2.23). If a closing is set on a temporary CO, the buyer's attorney should know what's left and how it'll get done.
- The final walk-through list. Write down unfinished items before closing, so warranty and contract rights are easier to use later.
- Property taxes. A home finished during the year can get an added assessment, prorated for the months remaining (N.J.S.A. 54:4-63.3). Our NJ property tax guide explains it, so buyers aren't surprised by a second bill.
Inspections still matter on a brand-new home. Our contingencies guide covers how inspection rights usually work. Check what the builder's contract actually allows.
New construction warranties also appear on the exam's Transfer of Title section; see our disclosures and transfer of title guide.
If you're starting out, Business Elementary's 75-hour pre-licensing course covers contracts and closings before your first client.
Sources
- N.J.S.A. 46:3B-3, new home warranty periods (via Justia): https://law.justia.com/codes/new-jersey/title-46/section-46-3b-3/
- N.J.S.A. 46:3B-5, builder registration (via Justia): https://law.justia.com/codes/new-jersey/title-46/section-46-3b-5/
- NJ Department of Community Affairs, New Home Warranty information for consumers: https://www.nj.gov/dca/codes/offices/nhw_for_consumers.shtml
- NJ Department of Community Affairs, New Home Warranty information for builders: https://www.nj.gov/dca/codes/offices/nhw_for_builders.shtml
- N.J.A.C. 5:25-5.5, warranty claims procedure (LII): https://www.law.cornell.edu/regulations/new-jersey/N-J-A-C-5-25-5-5
- N.J.A.C. 5:23-2.23, certificates of occupancy (LII): https://www.law.cornell.edu/regulations/new-jersey/N-J-A-C-5-23-2-23
- N.J.S.A. 54:4-63.3, added assessments (via Justia): https://law.justia.com/codes/new-jersey/title-54/section-54-4-63-3/
- N.J.A.C. 11:5-6.2, attorney review clause (LII): https://www.law.cornell.edu/regulations/new-jersey/N-J-A-C-11-5-6-2
- P.L.2024, c.32, Real Estate Consumer Protection Enhancement Act: https://pub.njleg.state.nj.us/Bills/2024/PL24/32_.PDF
Last reviewed: October 31, 2026
Frequently Asked Questions
Does every new home in NJ come with a warranty?
DCA says every new home sold in New Jersey comes with a warranty, with terms set out in the warranty booklet given at closing (DCA).
How long is the NJ new home warranty?
1 year for workmanship and materials, 2 years for plumbing, electrical, heating and cooling systems, and 10 years for major construction defects (N.J.S.A. 46:3B-3).
Can a buyer move in on a temporary certificate of occupancy?
A temporary CO allows occupancy of a substantially complete building that's safe to occupy, and lists the work left to finish (N.J.A.C. 5:23-2.23(g)). Whether to close on one is a question for the buyer and their attorney.
Does the builder's salesperson represent the buyer?
On-site sales staff work for the builder. Buyers who want representation should sign their own written agreement with a brokerage (P.L.2024, c.32).