2 Best ADU Builders in Paramus, New Jersey

Verified ADU contractors and builders in Paramus, NJ

Frequently Asked Questions — ADU Builders in Paramus

How much does it cost to hire an ADU builder in Paramus?

ADU construction costs in Paramus, New Jersey vary widely depending on size, type, and site conditions. Detached ADUs typically range from $150,000–$400,000+, while garage conversions and attached ADUs can be more affordable. Contact multiple builders in Paramus to get accurate quotes for your specific project.

How long does it take to build an ADU in Paramus?

In Paramus, the ADU construction timeline typically ranges from 6 to 18 months from permit application to move-in. Permitting alone can take 2–6 months depending on New Jersey local regulations. Prefab and modular ADUs often have faster timelines than site-built units.

Do I need a permit to build an ADU in Paramus?

Yes, a building permit is required for ADU construction in Paramus, New Jersey. Your ADU builder will typically handle the permit application as part of their service. New Jersey has adopted streamlined ADU permitting laws in recent years, which may reduce wait times.

What types of ADUs can be built in Paramus?

Common ADU types in Paramus include detached ADUs (backyard cottages), attached ADUs, garage conversions, basement conversions, and prefab/modular ADUs. The best type for your property depends on lot size, zoning, and budget. A local Paramus ADU builder can advise on what's allowed on your specific parcel.