Lapp Structures and Accessory Dwelling Units
Over the past decade, Accessory Dwelling Units — commonly referred to as ADUs — have become an increasingly popular option in residential construction. An ADU is essentially a secondary living space located on a single-family residential property. This could take the form of a small detached structure sharing a lot with a larger home, or an attached in-law suite. As an ADU builder, Lapp Structures has experience constructing the structural shell of these units, working alongside other trade professionals to bring a complete living space to life.
One notable example of their work is a three-car, two-story garage with a Gambrel roof, built to function as a fully usable accessory dwelling unit. The structure measures 24 feet wide by 36 feet long and is finished with Red Smart Panel Wood siding. It includes several customizations such as Heritage Overhead Garage Doors, exterior lights over each garage door, pent roof overhangs, and a full-sized shed dormer to expand the upstairs living area.
What the Structure Includes
The first floor of this particular build functions as a standard three-car garage, with shelving for tools, bike storage, and space for a water heater and water softener. The structure also features central air conditioning — a practical consideration given that it is primarily used during warmer months.
The second floor serves as the living quarters. It includes:
- An open living room and kitchen area with hardwood floors
- A kitchen with a working sink, mid-sized refrigerator, electric grill, coffee maker, toaster oven, and microwave
- A furnished living room with seating and an entertainment center
- A queen-sized bedroom with a wardrobe closet, dresser, and walk-in closet
- A bathroom with toilet, standing shower, and sink
While the kitchen is not full-sized, it provides considerably more functionality than what is typically found in a tiny home. The bedroom and bathroom are also more spacious than one might expect given the overall footprint of the structure.
Costs and Considerations
Pricing an ADU can be complex, as it depends on the size, style, and scope of the project. As a detached ADU builder, Lapp Structures focuses on constructing the structural shell of the unit. For reference, a three-car Gambrel garage from Lapp Structures is estimated to cost between $50,000 and $60,000 to build on a cement pad. Interior work — including drywall, insulation, electrical, and plumbing — requires licensed professionals in those respective trades, and those costs are separate.
There are ways to manage overall costs. Opting for a smaller structure, such as a two-car garage or a larger single-story shed style, can reduce the initial build cost while still providing adequate living space. Building on land already owned by the homeowner or a family member also significantly reduces overall expenses compared to acquiring new property.
Beyond the financial side, there are practical benefits to consider when thinking about an ADU:
- They allow extended family members to live nearby while maintaining their own space
- They can serve as an alternative to assisted living for aging relatives
- Younger families can live on a parent's property, making childcare more accessible
- Smaller structures generally require less energy to heat and cool
- When not in use, the space can potentially be rented out for additional income
Before beginning any ADU project, it is important to review local zoning and land use regulations, as these can vary significantly between municipalities. Once the necessary approvals are in place, Lapp Structures offers design consultations to help guide customers through the process of planning their structure.