| Illustration of Criteria for AL Types | |||||
AL Type |
Required to be Classified as AL Type:* | ||||
| Primary House | Residential Outbuilding | Agricultural Outbuilding | Barn | Secondary House | |
| House | Yes | No | No | No | No |
| Yes | Garage | No | No | No | |
| Farmstead | Yes | Yes or No | Two Minimum | Yes | - |
| Residential Complex | Yes | Any (not counting Garage) | No | - | |
| Orphan Outbuilding(s) | No (lost) | Any one or many | No | ||
| Ex-Farmstead | Yes | - | Two minimum | No (Lost or Recently Replaced) | No |
| No (Lost or Recently Replaced) | - | Yes | Yes | No | |
| Yes | - | Only one or none (lost) | Yes | No | |
| Component House | Yes (Inventoried separately) | - | - | - | Yes |
| Subsumed House | Yes (Inventoried separately) | - | - | - | Yes, combined with Primary House |