Secaucus, Hudson County · New Jersey

Can you build an ADU in Secaucus, NJ?

An accessory dwelling unit (ADU), a granny flat, in-law suite, or backyard home, can add rental income or family space. Whether Secaucus 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.

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Secaucus zoning & ADU rules

We have not sourced Secaucus's zoning ordinance or its ADU rules yet, so we cannot say what Secaucus permits on your lot. That is our gap, not Secaucus's. Run your address to see what we hold for it today.

Secaucus’s ADU rules, cited

Secaucus does not currently permit ADUs by right, so a variance may be needed.

Sources: Town of Secaucus Code Chapter 135 (Zoning), Section 135-2 (Definitions, 'Accessory structure or use', amended 5-10-2022 by Ord. No. 2022-5) and Section 135-6 (Use regulations, last amended 4-23-2024 by Ord. No. 2024-9). Read 2026-10-03 from the zoneomics mirror of the ecode360 text (ecode360 returns 403 to direct fetch). Section 135-2 says 'No accessory structure shall be used for human habitation.' Section 135-6 permits in the A Residence Zone a single dwelling unit only, and in the B Residence Zone a single dwelling unit or two dwelling units, with 'the following uses only'; Chapter 135 also states that all uses not expressly permitted are prohibited. No accessory dwelling unit or accessory apartment use exists.

See exactly what your lot allows

Accessory dwelling units (ADUs) in Secaucus, New Jersey

New Jersey has no single statewide ADU law. Each of the state's 564 municipalities, Secaucus (Hudson County, NJ) included, sets its own zoning for accessory dwelling units (granny flats, in-law suites, backyard homes). Whether you can build one in Secaucus, how big, and how tall depends on the town's ordinance and your specific lot. We have not sourced Secaucus's zoning ordinance yet, so we cannot tell you what Secaucus permits on your lot. That is a gap in our record, not a finding about Secaucus. What we can do today is measure the lot itself: its dimensions, what already sits on it, and its flood exposure.

Backyard homes that could fit a Secaucus lot

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ADU FAQ

Can I build an ADU in Secaucus, NJ?

Secaucus 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 Secaucus's ordinance yet, so we cannot confirm what it permits. Run your Secaucus address and we will show you what we do hold for that lot, and say plainly what we do not.

How much does an ADU cost in Secaucus?

A detached ADU in Secaucus typically runs $150,000 to $300,000+ all-in depending on size, site, and finishes. The build is financed and the rent helps carry the loan. You own the home.

Do I need to live on-site to build an ADU in Secaucus?

Some NJ towns require owner-occupancy; others (like Jersey City) don't. We check Secaucus's specific ordinance for you when you run your address.

See exactly what your Secaucus lot allows

Enter your address and we read Secaucus’s zoning against your parcel and tell you if an ADU fits, how big, and what it could earn. Free.