Some counties in Indiana would refer to this as an Accessory Dwelling Unit. 

Quote from @Brian Koons: Constructing an Accessory Dwelling Unit (ADU) in Southern California is a smart move, especially in a highly desirable neighborhood.

No idea if it is accurate or if anything has changed since then, but it indicated the following:PROGRAM 1 Owner use up to 2 weeks 50% of Adjusted Gross Standard FF&E in high season & 2 weeks Revenues from the Unit and accessory in low season package required.

This detached unit thats like another rental is called an "ADU" Accessory Dwelling Unit.

It's technically not an ADU if it's the only property on land as it's an accessory dwelling unit to a main unit.

It is something I believe will help me finally get that coveted first deal and first paycheck.

Think lakefront properties in small towns, destinations with new attractions (casinos, amusement parks)...Another idea is investing in properties suitable for accessory dwelling units to create dual-income setups, especially in cities with relaxed ADU regulations.

Another example is converting the garage into an Accessory Dwelling Unit.

Nestled in the coveted Bird Streets above the Sunset Strip, it offers a mix of privacy and urban convenience.

Client Name: Property Adddress: Current Property Type: Post Rehab Property Type: Level of Finishes: List Structural Changes: Final Bed/Bath Count: Exit Strategy (sell or refinance): PHASE 1: PRE-CONSTRUCTION Original Amount Net Adjustments Adjusted Total Description Drawings $ - $ - $ - Permits $ - $ - $ - Expeditor $ - $ - $ - Alarm/Security $ - $ - $ - Temporary Fencing $ - $ - $ - Portable Toilets $ - $ - $ - Engineering Fees $ - $ - $ - Architectural Fees $ - $ - $ - Utilities $ - $ - $ - TOTAL PRE-CONSTRUCTION $ - $ - $ - PHASE 2: DEMOLITION Original Amount Net Adjustments Adjusted Total Description Interior Demo Exterior Demo Dumpsters TOTAL DEMOLITION $ - $ - $ - PHASE 3: CORE AND SHELL Original Amount Net Adjustments Adjusted Total Description Excavation $ - $ - $ - Foundation $ - $ - $ - Underground Plumbing $ - $ - $ - Drain Tile $ - $ - $ - Sump Pump $ - $ - $ - Steel $ - $ - $ - Floor Joists $ - $ - $ - Subfloor $ - $ - $ - Rough Carpentry $ - $ - $ - Interior Stairs $ - $ - $ - Dormer $ - $ - $ - Roof Masonry Siding Windows Exterior Paint Soffit/Fascia Gutters Landscaping Walkways Exterior Doors $ - $ - $ - Exterior Stairs $ - $ - $ - Porch $ - $ - $ - Deck $ - $ - $ - Driveway $ - $ - $ - Garage TOTAL CORE AND SHELL $ - $ - $ - PHASE 4: HVAC Original Amount Net Adjustments Adjusted Total Description HVAC Rough Furnace Condensing Unit & Lineset $ - $ - $ - HVAC Trim $ - $ - $ - TOTAL HVAC $ - $ - $ - PHASE 5: ELECTRICAL Original Amount Net Adjustments Adjusted Total Description Electrical Rough $ - $ - $ - Electrical Finish & Fixtures Low Voltage TOTAL ELECTRICAL $ - $ - $ - PHASE 6: PLUMBING Original Amount Net Adjustments Adjusted Total Description Water Service Upgrade $ - $ - $ - Sewer $ - $ - $ - Plumbing Rough $ - $ - $ - Water Heater $ - $ - $ - Plumbing Trim & Fixtures $ - $ - $ - TOTAL PLUMBING $ - $ - $ - PHASE 7: DRYWALL AND DOORS Original Amount Net Adjustments Adjusted Total Description Insulation $ - $ - $ - Drywall, Tape, Sand $ - $ - $ - Finish Carpentry (Trim) $ - $ - $ - Interior Doors $ - $ - $ - Interior Paint $ - $ - $ - TOTAL DRYWALL $ - $ - $ - PHASE 8: FLOORS Original Amount Net Adjustments Adjusted Total Description Hardwood Floors $ - $ - $ - Tile Vinyl Carpet $ - $ - $ - TOTAL FLOORS $ - $ - $ - PHASE 9: KITCHEN Original Amount Net Adjustments Adjusted Total Description Cabinets Countertops Backsplash Plumbing Fixtures $ - $ - $ - Light Fixtures Appliances TOTAL KITCHEN $ - $ - $ - PHASE 10: BATHROOMS Original Amount Net Adjustments Adjusted Total Description BATHROOM # 1 Tub $ - $ - $ - Shower Tile Vanity Countertop Plumbing Trim & Fixtures Light Fixtures Glass & Mirrors $ - $ - $ - Bath Accessories $ - $ - $ - TOTAL BATHROOM # 1 $ - $ - $ - BATHROOM # 2 Original Amount Net Adjustments Adjusted Total Description Tub $ - $ - $ - Shower Tile Vanity Countertop Plumbing Trim & Fixtures Light Fixtures $ - $ - $ - Glass & Mirrors $ - $ - $ - Bath Accessories $ - $ - $ - TOTAL BATHROOM # 2 $ - $ - $ - BATHROOM # 3 - Basement Original Amount Net Adjustments Adjusted Total Description Tub $ - $ - $ - Shower $ - $ - $ - Tile $ - $ - $ - Vanity $ - $ - $ - Countertop $ - $ - $ - Plumbing Trim & Fixtures $ - $ - $ - Light Fixtures $ - $ - $ - Glass & Mirrors $ - $ - $ - Bath Accessories $ - $ - $ - TOTAL BATHROOM # 3 $ - $ - $ - **Please add itemization of work for additional kitchens or bathrooms** PHASE 11: OPTIONAL Original Amount Net Adjustments Adjusted Total Description Other $ - $ - $ - Fireplace $ - $ - $ - Final Cleaning Staging Stucco Closets General Contractor Fee $ - $ - $ - Finish Carpentry $ - $ - $ - Underpinning $ - $ - $ - Footers $ - $ - $ - Contingency $ - $ - $ - TOTAL OPTIONAL $ - $ - $ - Total Estimated Cost of Repairs $ - $ - $ -