This portion is called as 'Undivided Share of Land' (UDS). What is UDS? UDS or Undivided Share of Land is a part of the plot given to the owner of the flat in an apartment complex on which the entire. Anyone even remotely related to real estate would have come across the term ' UDS' or Undivided Share of Land. 5 days ago · What Is An Apartment Owner's Undivided Share In Land? (Shutterstock). An apartment without UDS is considered dead asset in real estate, as the value of constructed area depreciates. The first component is the constructed part of the building where the owners will actually reside, while the second is a proportionate share of the land on which the property is built.