ADU Rules: Mahwah vs Teaneck
How do adu rules rules compare between Mahwah, NJ and Teaneck, NJ?
Mahwah and Teaneck have similar restriction levels.
Mahwah, NJ
Bergen County
Mahwah permits accessory apartments as a conditional accessory use in all residential zones under Chapter 24 (Zoning) of the Township Code. Section 24-4.1(d) authorizes the use, while Section 24-6.1(j) sets the conditions: one accessory apartment per single-family residence, 400 to 800 square feet, no more than 30% of the habitable living space, a maximum of three occupants, and the principal building must be owner-occupied at all times. After July 1, 1997, no new affordable accessory apartments may be created.
View full Mahwah rules →Teaneck, NJ
Bergen County
Teaneck restricts accessory dwelling units through its zoning code, generally treating second residential units as conditional uses requiring planning approval and conformance with single-family district standards.
View full Teaneck rules →Key Facts Comparison
| Fact | Mahwah | Teaneck |
|---|---|---|
| Local Authority | Mahwah Code Ch. 24 (Zoning) | - |
| Permitting Section | Sec. 24-4.1(d) (conditional accessory use) | - |
| Standards Section | Sec. 24-6.1(j) | - |
| Where Allowed | All residential zones (conditional use) | - |
| Units Per Lot | One accessory apartment per single-family residence | - |
| Size Range | 400 to 800 sq ft, not more than 30% of habitable living space | - |
| Occupants | Maximum three per apartment | - |
| Owner Occupancy | Required at all times | - |
| State Law | N.J.S.A. 40:55D-1 et seq. (MLUL); N.J.A.C. 5:23 (UCC) | - |
| Code chapter | - | Chapter 33 Zoning |
| ADU status | - | Conditional, variance required |
| Permit required | - | Yes, building and zoning |
| Principal units | - | One per residential lot |
Highlighted rows indicate differences between cities.
Mahwah FAQ
Where in Mahwah can I add an accessory apartment?
Accessory apartments are permitted as a conditional accessory use in all residential zones under Section 24-4.1(d) of the Mahwah Zoning Ordinance. Conditional use approval from the Planning Board is required, and the unit must satisfy the standards in Section 24-6.1(j).
Can I rent out the accessory apartment if I don't live in the main house?
No. Section 24-6.1(j) requires that the building be owner-occupied at all times. An accessory apartment cannot lawfully be operated on a property where the owner does not occupy the principal dwelling.
How big can the accessory apartment be?
The minimum floor area is 400 square feet and the maximum is 800 square feet, and in no case may the apartment exceed 30% of the habitable living space of the dwelling, per Section 24-6.1(j).
Teaneck FAQ
Can I add a basement apartment in Teaneck?
Generally no without a variance. Most residential zones allow only one dwelling unit per lot, and adding a second kitchen for a separate household typically requires zoning board approval.
Are in-law suites allowed?
In-law arrangements within a single dwelling unit are permitted, but they cannot be a separate dwelling unit with its own kitchen unless approved through the zoning process.
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