How many previous owners does 838 Hougang Central, #xx-xx have?

The specific number of previous owners for a particular unit, such as 838 Hougang Central #xx-xx, is not publicly available through general property listings or transaction records. This information is typically considered private and is not disclosed in public databases or property portals like EdgeProp Singapore.

To obtain detailed ownership history, you would need to contact the relevant authorities, such as the Housing and Development Board (HDB) or the Singapore Land Authority (SLA), which may require specific permissions or authorizations.