Design Vogue

• Advise on DADU permissibility

• Navigate permitting process

• Relieve burden of planning

• Contractor fee

• Less flexible timeline

• Must use contractor's subcontractors

Hiring a contractor to turn a shed into a tiny house may seem contrary to the DIY, cost-saving nature of the project. But a strong case can be made for hiring a qualified contractor who has built DADUs, particularly one who has converted sheds into tiny houses. 

A qualified contractor can advise you on municipal permissions, requirements, zoning, and permits. The contractor takes all of the work of planning and scheduling off of your shoulders.

Though it's common for municipalities to allow homeowners to do electrical and plumbing work on their own houses, it's often different with tiny houses. Plumbing may need to be installed by a licensed residential or commercial plumber and all electrical work may need to be performed by licensed electrical contractors or licensed electricians.

Zoning, Code, and Ordinances

Before starting a shed conversion into a tiny house, the first consideration is whether local ordinances even allow tiny homes to be built and, if so, how easy or difficult it is to turn the shed into a house.

Begin with your city's building and planning department. Some communities are friendly to ADU development, making special efforts to cut the red tape and meet the needs of ADU tiny home builders.

Permits

To turn a shed into a tiny house, you may be required to apply for several permits:

• Building permit: Permit that describes the comprehensive nature of the shed conversion project
• Mechanical permit: Furnaces, A/Cs, fireplaces, clothes dryer exhausts, and similar items
• Electrical permit: Lighting, outlets, and all other grid-based or independent electricity
• Plumbing permit: Water for sinks, showers, toilets, and bathtubs

Inspections

Inspections are a component of most permits. Applying for permits is the first step; permit approvals are the last step. Between application and approval are several inspections by municipal inspectors, such as this three-step sequence just for electrical permits:

1. Cover inspection: The inspector visits the tiny house and inspects all wired circuits, with boxes installed, wires run through framing, grounding conductor established, and nail plates in place. 
2. Service/feeder inspection: The inspector views the electrical service mast, meter base, electrical service panel, grounding conductor, and branch circuits.
3. Final inspection: The inspector views the electrical system for the last time to inspect covered panel boxes, circuits established and labeled, and cover plates, as well as relevant electrical appliances (like stoves) hooked up and grounded.

Electricity

Electricity transforms the converted shed into a comfortable, habitable living space. Even if the shed currently has electricity, substantial changes will likely be required. 

Power can be brought over from the main house with buried cables or above-ground conduit. The shed should have its own electric service panel and electric circuits independent of the main house. In some cases, a common electric service panel may be approved. If so, both the converted shed and the main house must have direct access to it.

Water and Sewer

Add water and sewer to the tiny house by hooking into the property's existing municipal water and sewer system. Check with the local planning and building department to see if this is allowed and if your system has the capacity to handle the extra demand.

Installing a composting toilet eliminates the steep cost of water and sewer installations. But not all areas permit the use of composting toilets, so check in advance with your environmental or health department and consult local building codes.

Heating and Cooling

Heat and cool your converted tiny home with passive methods: solar gain through windows for heating and airflow, open gables, and reflective paint for cooling.

For active heating and cooling, install a ductless mini-split system. Mini splits provide both heating and cooling. Pellet stoves, baseboard heaters, and radiant floor heating are other tiny home heating options. Window air conditioners and ceiling fans are effective options for cooling tiny homes.

Parking Requirements

Off-street parking provisions are sometimes required when developing DADUs such as converted sheds. Communities friendly to DADUs sometimes pare down or eliminate this requirement altogether.

Going Off the Grid With a Tiny House

One appeal of tiny houses is the chance to seek privacy and serenity outside of the city. Unhooking from the grid—municipal electricity, sewer, and other utilities—is often the trade-off. You can turn a shed into an off-grid tiny house with a few modifications to its utilities.

Power

Solar power has more uses than ever—heating water, powering fans, or heating the tiny home. Situate the tiny house so that roof-mounted solar panels gain the most light throughout the day. The best solar panels for tiny houses will be sized to fit the limited roof area of tiny houses.

Home generators offer reliable power for whenever you need it, at the cost of noise and consumption of fuels that cause greenhouse gasses.

Water

Bringing in water in containers or digging a well are two ways to supply water to an off-grid tiny house. Greywater systems that recycle water from the kitchen and bath stretch out your off-grid water supplies. 

Sewer

Using a composting toilet allows your off-grid tiny house to handle waste without water and sewer installations. Composting toilets turn human waste into a compost-like material, without the need for a water supply. If local laws permit, the material can even be used for garden fertilizer.

Cost to Turn a Shed Into a Tiny House

The average cost of a tiny home is $45,000 to $50,000. Starting with an existing shed in build-ready shape would defray the cost of the tiny home by $8,000 to $21,000, as this is the cost range of a new, professionally installed wood shed, including delivery.

How to Turn a Shed Into a Tiny House

The process of turning a shed into a tiny house varies with each project, especially with the type of shed used and your need for utilities.

1. Assess the current shed or purchase a shed.
2. Create detailed interior plans.
3. Decide on the interior materials.
4. Supplement the framing, if necessary.
5. Install the windows and skylights.
6. Rough-in the electrical and plumbing systems.
7. Order electrical, plumbing, and mechanical inspections.
8. Add insulation to the walls and ceiling.
9. Install floor covering on top of the shed floor covering.
10. Hang and finish the drywall.
11. Install the cabinets and other permanent fixtures.
12. Landscape to integrate the tiny house with the yard.