Arlington County should soon allow accessory cottage type building to be built in the backyard ..  

In R-1AA, R-1A, R-1, R-1N and R-2A zoning districts an Accessory Apartment, Accessory Cottage, or Garage Apartment may beallowed as a second dwelling unit on a single-family building site under the following conditions:i) Accessory Apartment.(1) Inside the Traditional City, one Accessory Apartment shall be allowed as a Permitted Use when the building site is at least 1.5 times theminimum lot size for the applicable zoning district.(2) Outside the Traditional City, one Accessory Apartment may be allowed as a Conditional Use in accordance with the regulations andprocedures provided in Chapter 65, Part 2D, when the building site is at last 1.5 times the minimum lot size for the applicable zoningdistrict.ii) Accessory Cottage.(1) Inside the Traditional City, one Accessory Cottage shall be allowed as a Permitted Use when the building site is at least 2.0 times theminimum lot size for the applicable zoning district.(2) Outside the Traditional City in the R-1AA, R-1A, R-1 and R-1N Districts, one Accessory Cottage may be allowed as a Conditional Use inaccordance with the regulations and procedures provided in Chapter 65, Part 2D provided that the building site is at least 2.0 times theminimum lot size for the applicable zoning district.(3) In the R-2A district inside and outside of the Traditional City, Accessory Cottages shall be a permitted use provided that the minimumbuilding site area for an Accessory Cottage shall be the same as that required for a duplex development.

I'm looking at a property that has R2 zoning it is listed  as a single-family with an accessory unit in the public records.

So we're kind of limited in which towns we can buy it because not all cities allow accessory apartments. currently our searches for Cedar Hills, pleasant Grove, American Fork, and eagle mountain.

Also, the second unit is considered an Accessory Dwelling Unit or ADU and I cannot re-zone this property or have the basement as a 3rd unit.

If someone is going to put a foundation and accessory building in their back yard, from an investment perspective, it makes sense to build to highest and best use by maximizing the square footage and maybe putting in a second half or full bath.  

A good new plow would run $4-8k depending on what you scholar and accessories.

Finding investments that fit your lifestyle and marriage is key....maybe just a single family with an accessory is a baby step to see the rent checks coming in...

They are called "accessory dwelling units" and are only allowed in properly zoned areas.

But I am in no hurry to give up the tax benefits of buy-and-hold real estate: The ability to write off the interest, insurance, property taxes, 1/27.5 of the property, 1/5 of the appliances and accessories, and 1/15 of the landscaping, every year.