| AbstractOrder | An abstract object order. |
| Area | Order by area. |
| City | Order by city. |
| GroupNr | Order by group number. |
| LastMod | Order by time of last modification. |
| ObjectId | Order by object ID. |
| ObjectNr | Order by public object nr. |
| Postal | Order by postal code. |
| Price | Order by price. |
| Rooms | Order by number of rooms. |
| Title | Order by object title. |