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An accessory dwelling unit (ADU), a granny flat, in-law suite, or backyard home, can add rental income or family space. Whether Matawan allows one, and how big, comes down to the town’s zoning and your specific lot. Here’s what we know, and how to check yours.
We have not sourced Matawan's zoning ordinance or its ADU rules yet, so we cannot say what Matawan permits on your lot. That is our gap, not Matawan's. Run your address to see what we hold for it today.
From 890 real Matawan permits in the New Jersey DCA record. The largest group, international residential code, takes a median of 28 days from filing to issue (n=431). This is elapsed time, not review hours: it includes the waiting and the corrections.
| Project type | Permits | Fastest 25% | Median | Slowest 25% |
|---|---|---|---|---|
| International Residential Code | 431 | 12d | 28d | 94d |
| Accessory buildings and miscellaneous structures | 376 | 6d | 13d | 35d |
| Multiple family dwellings, dormitories, etc. | 51 | 14d | 14d | 41d |
| Business Uses | 32 | 7d | 34d | 224d |
New Jersey has no single statewide ADU law. Each of the state's 564 municipalities, Matawan (Monmouth County, NJ) included, sets its own zoning for accessory dwelling units (granny flats, in-law suites, backyard homes). Whether you can build one in Matawan, how big, and how tall depends on the town's ordinance and your specific lot. We have not sourced Matawan's zoning ordinance yet, so we cannot tell you what Matawan permits on your lot. That is a gap in our record, not a finding about Matawan. What we can do today is measure the lot itself: its dimensions, what already sits on it, and its flood exposure.
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Explore all modelsMatawan sets its own ADU rules under New Jersey's home-rule system. Many NJ towns allow ADUs by right in residential zones; some require a variance. We have not sourced Matawan's ordinance yet, so we cannot confirm what it permits. Run your Matawan address and we will show you what we do hold for that lot, and say plainly what we do not.
A detached ADU in Matawan typically runs $150,000 to $300,000+ all-in depending on size, site, and finishes. Because the build is financed, you can add rental income to your Matawan property without paying the build cost up front, and the rent helps carry the loan.
Some NJ towns require owner-occupancy; others (like Jersey City) don't. We check Matawan's specific ordinance for you when you run your address.
Enter your address and we read Matawan’s zoning against your parcel and tell you if an ADU fits, how big, and what it could earn. Free.
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