How long after a New Jersey demolition permit does the rebuild permit get filed?

Across the 2,318 New Jersey addresses in our file that carry a demolition permit followed by a new-construction permit, the median gap is 45 days. The middle half falls between 17 and 99 days. 878 of those rebuild permits were filed within 30 days of the demolition and 1,669 within 90. The commonly repeated idea that a demolition precedes its rebuild by months is true at the slow end of the range and wrong at the fast end, which is where most of the volume sits.

What share of New Jersey demolition permits lead to a new building?

19.7% of the 11,781 distinct addresses with a demolition permit also carry a later new-construction permit. That figure is a floor rather than an estimate, because our New Jersey file currently runs to 2026-08-07 and recent demolitions have not had time to produce a rebuild filing. Looking only at demolitions filed in 2025, which have had at least eight months of observation, the rate settles at 22.9% for the first half of the year and 22.6% for the second. Roughly one in four is the honest number.

Which New Jersey county has the highest teardown rebuild rate?

Cape May, at 62.0% of 466 demolished addresses. Ocean follows at 43.3% and Atlantic at 39.9%. At the other end, Sussex converts 1.0% of 957 demolitions into a new-construction permit and Hunterdon 2.5% of 283. A demolition permit in Cape May and a demolition permit in Sussex are not the same event and should not sit in the same list.

Does New Jersey permit data name the demolition contractor?

No. All 640,741 New Jersey records in our file carry zero contractor names and zero owner names. New Jersey is a targeting file, not a calling list. It tells you the address, the municipality, the work class, the subcodes filed, the declared cost and the date. Who did the work, and who owns the lot, has to come from the county clerk, the tax record or your own field knowledge.

Why do New Jersey demolition permits come in building and fire versions?

New Jersey permits are issued by municipal construction officials under the state Uniform Construction Code at N.J.A.C. 5:23, and each permit records which subcode officials reviewed it. Demolition splits almost evenly: 6,559 records carry a fire subcode and 5,647 a building subcode. Both are demolitions. Filtering on the building version alone drops close to half the cohort, which is a common and expensive mistake when reading this file.

New Jersey Demolition Permits and the 45-Day Rebuild Clock

By the permits.llc team · Last reviewed September 5, 2026 · Optimal window: Weeks 1–6

In New Jersey, the median gap between a demolition permit and the new-construction permit at the same address is 45 days. Not months. Across 2,318 matched addresses in our file, 878 rebuild permits were filed within 30 days of the teardown, and the middle half of the range closes inside 99 days.

TL;DR

2,318 New Jersey addresses carry a demolition permit followed by a new-build permit.
Median gap is 45 days. Quartiles: 17 days and 99 days.
Roughly one demolished address in four comes back, once truncation is allowed for.
Conversion runs 62.0% in Cape May County and 1.0% in Sussex.

How long is the gap between a New Jersey demolition permit and the rebuild?

Forty-five days at the median, and the distribution is tighter than the industry assumes.

Our New Jersey file holds 640,741 permits filed between 2025-01-01 and 2026-08-07. 14,150 of them are demolitions. Stripping the 1,027 that carry no usable street address leaves 11,781 distinct addresses, and 2,318 of those later carry a new-construction permit in the same municipality.

Gap from demolition to rebuild	Addresses	Share of the 2,318
Within 30 days	878	37.9%
Within 90 days	1,669	72.0%
25th percentile	17 days
Median	45 days
75th percentile	99 days

Most published advice about teardown targeting says the demolition lands "months" before the rebuild. Our own coverage of the shore counties said something close to that. The measured version is sharper and less comfortable: for nearly four in ten of these addresses, the rebuild paperwork is in within a month, which means the design was finished and the contract awarded before the excavator arrived.

That changes what the demolition filing is worth. It is an excellent territory signal. It is a poor last-minute sales signal, unless you know the local lag.

How often does a demolished New Jersey address actually get rebuilt?

19.7% in the raw file, and roughly 23% once you account for the window.

This is the number most likely to be quoted badly, so it is worth being careful. A demolition filed in July 2026 has had five weeks to produce a rebuild permit before our file ends. A demolition filed in March 2025 has had seventeen months. Pooling them understates the rate.

Demolition filed	Addresses	Later rebuild	Rate
H1 2025	3,753	858	22.9%
H2 2025	3,991	903	22.6%
H1 2026	3,523	543	15.4%
Jul–Aug 2026	514	14	2.7%

The two settled cohorts agree with each other to within a third of a percentage point. The two recent ones are censored, not different. So the working figure is that about 23% of New Jersey demolitions become a new building on the same address, and the 19.7% headline is a floor.

A quarter is a real hit rate for a list you can pull out of a permit file. It is also a reminder that three quarters of demolitions in this state are something else: a garage, an outbuilding, a fire-damaged structure cleared and left, a commercial pad cleared for a parking expansion.

Which New Jersey counties turn demolitions into rebuilds?

The spread is 62 to 1, which is the widest county-level divergence we have measured anywhere in the New Jersey file.

County	Demolished addresses	Rebuilt	Rate
Cape May	466	289	62.0%
Ocean	991	429	43.3%
Atlantic	298	119	39.9%
Monmouth	795	246	30.9%
Bergen	1,461	417	28.5%
Essex	1,062	206	19.4%
Middlesex	735	133	18.1%
Union	890	130	14.6%
Morris	1,262	106	8.4%
Passaic	529	35	6.6%
Hunterdon	283	7	2.5%
Sussex	957	10	1.0%

Sussex is the one to sit with. It files 957 demolition permits, more than Bergen files in half a year, and ten of those addresses come back with a new house. Whatever is being demolished in Sussex is overwhelmingly not a dwelling that anyone intends to replace. Morris behaves the same way at larger volume.

Anyone sorting New Jersey demolition permits by count is going to spend a lot of time in the two counties least likely to pay them.

Why does the county number mislead you?

Because the New Jersey teardown market is municipal, and the county average buries it.

Essex County converts 19.4% of its demolitions. Livingston, inside Essex, converts 62.9% of 178. Bergen County converts 28.5%. Paramus, inside Bergen, converts 60.3% of 116. Union County converts 14.6%, and Westfield inside it converts 30.4% of 138.

Municipality	County	Demolished	Rebuilt	Rate
Ocean City	Cape May	159	114	71.7%
Stafford	Ocean	72	49	68.1%
Margate	Atlantic	94	63	67.0%
Avalon	Cape May	78	51	65.4%
Livingston	Essex	178	112	62.9%
Long Beach Township	Ocean	150	92	61.3%
Paramus	Bergen	116	70	60.3%
Toms River	Ocean	97	52	53.6%
Millburn	Essex	78	34	43.6%
Westfield	Union	138	42	30.4%

There are two teardown geographies in this state and they have little to do with each other. One is the barrier island and bayfront strip, where an older cottage is replaced by a house built to a current elevation standard. The other is the affluent inner-ring suburb, where a mid-century split level on a large lot is replaced by something several times its declared value. Ocean City and Livingston sit near the top of the same table for entirely different reasons.

Our Jersey Shore permit coverage works the coastal half. The inland half has had no coverage at all, and it is the half that a general contractor in Essex or Bergen can actually drive to.

What does the lag itself tell you about the sale?

It tells you whether the job is still open.

This is the part that competitors do not publish, because it requires matching two permits and measuring the interval. The rebuild rate tells you where to work. The lag tells you when, and by implication whether there is anything left to win.

Municipality	Pairs	Median lag	Median rebuild cost
Livingston	112	9 days	$532,500
Toms River	52	34 days	$356,879
Long Beach Township	92	36 days	$861,650
Ocean City	114	42 days	$591,812
Paramus	70	44 days	$540,000
Stafford	49	55 days	$439,650
Avalon	51	62 days	$938,800
Edison	60	72 days	$400,100
Margate	63	74 days	$769,500
Lakewood	70	88 days	$476,020

Livingston files the rebuild nine days after the demolition. Nine days is not a pipeline. It is a project that was fully drawn, permitted and contracted before the house came down, and a subcontractor arriving on the demolition signal is arriving after every decision has been made. In Livingston the useful signal is the new-construction permit itself, and the useful motion is being on the general contractor's list before the lot is bought.

Margate at 74 days and Lakewood at 88 are the opposite. There is a real interval there, and trades that get specified late (site work, hardscape, low-voltage, appliances, flooring) have something to sell into it.

Read the rebuild costs across the same rows. A New Jersey rebuild that follows a demolition runs a $542,000 median declared cost statewide, against $149,000 for new-construction permits generally. Avalon runs $938,800. These are among the largest residential jobs in the file, and they are identifiable months before a competitor working from a listing feed will see them.

What this data cannot tell you

Quite a lot, and the limits are worth stating plainly.

New Jersey carries no contractor names and no owner names across all 640,741 records. There is no applicant name either. Every one of these addresses is a place, not a person. A permit here is a signal about the homeowner, not the contractor, and in New Jersey it is a signal without a name attached to it.

The address match is imperfect. 1,027 demolition permits carry no usable street address, and some New Jersey records identify a property only by block and lot inside the description text, which our block and lot coverage explains. Those pairs are invisible to this method, so the true conversion count is higher than 2,318.

The file currently ends 2026-08-07. The Jul–Aug 2026 cohort in the second table is not a trend, it is an artifact of that boundary, and anyone reproducing this analysis after the feed catches up should recompute rather than quote these figures forward.

Lakewood deserves a specific warning. It appears in the lag table at 70 pairs, but Lakewood also files large volumes of tract new-construction permits with placeholder valuations, which we cover in the square footage signal. Some share of its matched pairs is development-tract paperwork rather than one family replacing one house. Verify before you build a territory on it.

And a demolition permit is not a commitment. Roughly three in four never produce a new building on that address inside our window. Some of those are outbuildings. Some are owners who ran out of money after the excavator left.

How permits.llc fits in

We hold 640,741 New Jersey permit records across all 21 counties and 496 municipalities, filed under the New Jersey Uniform Construction Code and issued by municipal construction officials. Demolition is one of four work classes in that file and the only one that reliably predicts a much larger job at the same address.

If you want to run this cut yourself, download the New Jersey permit file and match demolitions to new-construction filings on the normalized address inside each municipality. If you would rather start from geography, the New Jersey county pages break the file down by county so you can see whether your territory converts like Cape May or like Sussex before you commit a season to it.

Contractors who work teardown rebuilds tend to pair this with two other reads. Container and haulaway operators are on site before anyone else in the sequence. Investors buying teardown lots are reading the same records from the acquisition side. If you want the new filings as they land rather than as a quarterly pull, daily permit alerts cover the same data on a next-day cadence.