Sale of housing and real property
In principle, any gain made on the sale (or other realisation) of housing and real property is taxable. However, there are many exceptions to the liability to pay tax in connection with the sale of your own home/holiday home provided that certain requirements concerning period of ownership and occupancy/use are met. Gains from the sale of plots of land are always taxable.
You can deduct any loss on the sale of real property if any profit would have been taxable. You should note that different requirements apply to period of ownership and occupancy/use for housing and holiday homes.
What are you selling?