Deemed ownership of allotted or part-performed property triggers inclusion of property value in net wealth. Where an assessee is allotted or leased a building or part under a house building scheme, the assessee is deemed to be the owner and the value of that building or part is included in computing net wealth, with outstanding installments payable under the scheme deducted as a debt; persons in possession under part-performance contracts or who acquire specified transaction rights (excluding short-term leases) are likewise deemed owners and must include the value of the building or part in computing net wealth.