The San Francisco Bay Area housing shortage has prompted a lot of homeowners and investors to add Accessory Dwelling Units (ADUs) to their properties.

Here is text taken from the HOUSABLE website for Oakland:Utility ConnectionsCategory One: No new or separate utility connection shall be required.Category Two: A new or separate utility connection may be required, but the connection fee or capacity charge shall be proportionate to the burden of ADU on the water or sewer system.Here are definitions of the ADU categories from the City of Oakland website:CATEGORY ONE ADU: Involves either conversion of space within an existing Single-Family Dwelling, or conversion or rebuild of an existing accessory structure; includes no expansion of the existing building envelope other than up to 150 sq. ft. for purposes of accommodating ADU access and egress only.CATEGORY TWO ADU: Involves construction of a new detached or attached structure, including an exterior addition to an existing structure to accommodate the ADU, in conjunction with a proposed or existing Single-Family dwelling.It seems that Oakland is making things confusing with the language they are using, but I still believe that my original interpretation is correct based on the State Assembly Bill. 

how can you have an accessory dwelling unit at 4+ units?

My team an I hauled over 12 tons of items from the house, did a minor renovation, and converted the workshop into an Accessory Dwelling Unit (ADU).

Some properties, especially those with Accessory Dwelling Units (ADUs), provide opportunity to break even or cashflow with lower down payments.Out of state (as well as Upstate NY) investing is appealing when taking this all into consideration.

Cost TrackerLot Purchase Price 20% - 15%Architect & Engineering Plans RenderingSurvey 1 (Stake Corners & Elevation Cert)Surveyor (Final Elevation Cert & Final Survey)County Permit Municipality Utilities District Portable ToiletFoundationSilt Fence Site Work (tree removal / 8in Dirt Scrape)Concrete SlabFramingLumberEngineering Wood Products (Trusses)Accessories & LumberFraming Labor $2.5 per sqftPlumbingPlumbing TurnkeySinksToiletsFaucets & Shower TrimElectricalElectricalHVACHvacInterior Windows & Material Back DoorFront DoorSiding, Sheathing & Cornice MaterialSiding, Cornice, Doors, Window LaborRoofRoof Deck MaterialRoof Deck LaborStanding Seam Metal Roof (optional)InsulationInsulationDrywallDrywallFirewallHang, Tape, Float & Texture LaborDrywall Touch Up LaborPaintExterior PaintInterior PaintExtra Cost (Caulk & Paint Upgrade)CarpentryDoor Handles CabinetsInterior DoorsBaseboards & Shelving (closets, utilities & Pantry)Carpentry LaborCounter TopsCounter TopsMirrors MirrorsGarageGarage Door & OpenerDrivewayDriveway Flat Work (AC Pad, Walkways, Steps, Backyard Steps)TilingTile MaterialTile LaborLVPLVP MaterialLVP LaborRailingRailingLandscapingLandscape Final gradeSODFlower BedDumpsterDumpsterApplianceseDish WasherStoveMicrowaveMiscMail BoxFinal CleaningHouse Plan PrintsWater & Electric During buildRefunds / DepositsRefundable Deposit

Search for "Accessory Dwelling Unit" in the PDF and you'll see what I'm referencing.

Hanging a large picture or something at the head of the bed usually looks nice.Additional Bedrooms:Any additional bedrooms, I stage either as an office with a writing desk and computer chair, a workout room (yoga mat and pretty exercise accessories), or a nursery with a neutral white or wood toddler bed and a changing table. 

@Mack Bailey what do you mean by Adu, accessory dwelling unit?

I'm interested in purchasing a single-family home (SFH) with an accessory dwelling unit (ADU) in concord, CA of approximately $800K-$900k.