"Detached Townhome" vs. "Single Family House"

MLS Style Category Definitions

1. (SF) One Story (ONEST)
One story single-family house
2. (SF) One 1/2 Stories (ONEHF)
One 1/2 story single-family house. Second floor only has adequate ceiling height in a portion of it.
3. (SF) Two Stories (TWOST)
Two story single-family house. Has adequate ceiling height throughout upper story.
4. (SF) More Than Two Stories (MRTTS)
Single-Family house with more than two stories.
5. (SF) Modified Two Story
(MODTS)
Two story single-family house where the second story has full ceiling height throughout but has less square feet of finished space than the first level, leaving a portion of the structure without the second story. However, there is a full set of stair risers to the second story. (Does not include multi-level homes with a half set ofrisers but not a shorter fullset.).
6. (SF) Three Level Split (THRLS)
Three level split home
7. (SF) Four or More Level Split (FOURM). Built like a three level split, except it has a basement level and/or additional levels.

The Multiple Listing Service lists 19 different kinds of housing styles (the first seven are above).

Which one's the most confusing?

Personally, my candidate is "Townhome Detached."

I ran into the issue when a townhome I'd been tracking for a client cancelled and re-listed, but was no nowhere to be found on the townhome search I'd set up and saved for the clients.

The explanation?

The listing agent switched the property's category from "Townhome Detached" to "Single Family (Two Stories)."

The distinction?

The former has a homeowner association that takes care of building exterior maintenance, snow removal, sanitation, etc.

Apparently, at least one other agent is fuzzy on the distinction, too (she was right the first time, when the property was listed as a "detached townhome").