Discovering Your Ideal ADU: A Lowcountry Guide

What is an ADU?

An Accessory Dwelling Unit (ADU) is a versatile secondary housing unit on a single-family residential lot. Often called “granny flats,” “in-law suites,” or “carriage houses,” ADUs offer significant benefits for homeowners across the Holy City and Sea Islands. Whether you’re looking to house a family, generate rental income, or simply add flexible living space, understanding the various ADU types is crucial.

The demand for ADUs has surged as homeowners recognize their potential for:

• Increasing property value
• Providing flexible living solutions
• Addressing housing shortages

This guide explores the different forms of ADUs, their unique characteristics, and key considerations, all within the charm and regulations of the Lowcountry. 

Detached ADUs: Privacy and Standalone Versatility

Detached ADUs are separate structures from the main house, offering maximum privacy. These can range from newly constructed tiny homes in your West Ashley backyard to custom-built cottages perfect for a downtown Charleston rental.

A detached ADU provides a distinct living space, often including:

• Kitchen
• Bathroom
• Sleeping area
• Sitting/Living area
• Closets/Storage

These make them ideal for:

• Long-term tenants
• Independent family members
• Dedicated home offices or studios

The appeal of a detached ADU lies in its complete separation, minimizing sound transfer and maximizing independence. Imagine a charming bungalow among live oaks, offering a serene escape or steady rental income.

Considerations for Detached ADUs:

• Entry/Outdoor Access/Space: Consider on what could be possible. Does setback already cover? Should you integrate into the setback litem? Sufficient space is essential.
• Zoning Ordinances: Adherence to local setbacks and height restrictions. Zoning and planning departments have varying restrictions on ADU use. Will your department allow a kitchen? Utilities? Are you grandfathered in or are these already in place?
• Utility Extensions: Cost of extending water, sewer, and electricity.
• Parking: If your ADU will be used for a rental occupant this may be a necessary accommodation. 

An experienced ADU contractor in the Lowcountry can guide you from design and permitting to construction. They ensure compliance with all local regulations in areas like Johns Island, Downtown, West Ashley or Mt. Pleasant and can advise on sustainable building practices relevant to our coastal climate.

Attached and Internal ADUs: Seamless Integration & Enhanced Functionality

Attached ADUs are physically connected to the primary residence but feature their own independent entrance, kitchen, and bathroom. These can be:

• Converted garages
• Additions to the side or rear of your home
• Attic and FROG conversions

Attached ADUs offer convenience by typically sharing utilities with the main house, often making them a cost-effective alternative to fully detached units. They’re perfect for homeowners who need extra living space but have limited yard size or prefer a more integrated feel. Additionally, attached ADUs can can be great for guests, visiting or aging family members, etc. 

Homeowners in areas like Mount Pleasant or James Island find this a practical way to expand living space without sacrificing valuable yard space, especially in denser areas.

Key considerations for attached ADUs:

• Soundproofing: Ensuring adequate soundproofing between units.
• Fire Separation: Maintaining fire separation requirements.
• Zoning: Navigating permits for structural modifications.

An experienced ADU contractor can help design an attached unit that seamlessly blends with your existing architecture, enhancing both functionality and curb appeal. They can also advise on separate metering for utilities if desired for rental purposes.

Homeowners must also consider the impact on the existing main house, such as potential loss of storage space or changes to privacy. Consulting with experienced ADU contractors can help assess feasibility and design possibilities for an attached or internal ADU, ensuring all building codes and safety regulations are met. They can also advise on soundproofing solutions and creating a truly independent living experience within shared walls.

Finding Your Perfect ADU Solution in the Lowcountry

No matter your goals—whether it’s providing a private sanctuary for guests, creating a valuable income stream, or offering accessible housing for family members—exploring the various ADU options available can open up a world of possibilities for your property in the Charleston area and beyond. An ADU can be a significant asset, enhancing your lifestyle and contributing to the vibrant fabric of our communities.

Stono Construction stands as a trusted ally for homeowners throughout the Lowcountry, delivering superior craftsmanship and outstanding service. Should you be contemplating enhancing your home with an ADU, we encourage you to connect with Stono Construction for a consultation today. Allow us to assist in transforming your ADU aspirations into reality. Contact us today!