How do we depreciate a house pala? According to google, in the US, it's 3.6% per annum or fully depreciated in 27.5 years. It just crossed my mind earlier because I wondered if I depreciated today's cost to build a modest 2 storey house of 25k/sqm, how my selling price compared. Actually, I priced my house at lot x zonal value + floor area x 10k/sqm. The house was 19 years old.