4 Best ADU Builders in Silver Spring, Maryland

Verified ADU contractors and builders in Silver Spring, MD

Frequently Asked Questions — ADU Builders in Silver Spring

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

ADU construction costs in Silver Spring, Maryland 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 Silver Spring to get accurate quotes for your specific project.

How long does it take to build an ADU in Silver Spring?

In Silver Spring, 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 Maryland local regulations. Prefab and modular ADUs often have faster timelines than site-built units.

Do I need a permit to build an ADU in Silver Spring?

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

What types of ADUs can be built in Silver Spring?

Common ADU types in Silver Spring 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 Silver Spring ADU builder can advise on what's allowed on your specific parcel.