Jack has answered your question correctly in a single word but I'll try to clarify the rules regarding JSA:
Anyone who has been paying full National Insurance contributions, who then loses their job (and who is actively seeking work) is entitled to receive 'contribution-based' JSA for up to 6 months. That type of JSA is NOT means-tested. (A billionaire with several dozen mansions is entitled to it).
Anyone who is unemployed (and actively seeking work) but who doesn't qualify for contribution-based JSA (either because they've not been paying full NI contributions or because they've reached the end of the 6 month qualification period) can be considered for 'income-based' JSA but that form of the benefit IS means-tested. Savings are taken into account, as are the earnings of a partner, but property ownership is not a bar to entitlement.
Chris