简要地说，如果这房子是你们家庭在婚后的主要居住处，算是共同财产
注意keyword "ordinarily used or enjoyed", "substantially improved during the marriage".
Women’s Charter
(CHAPTER 353)
Chapter 4 — FINANCIAL PROVISIONS CONSEQUENT ON MATRIMONIAL PROCEEDINGS
(10) In this section, “matrimonial asset” means —
(a)
any asset acquired before the marriage by one party or both parties to the marriage —
(i)
ordinarily used or enjoyed by both parties or one or more of their children while the parties are residing together for shelter or transportation or for household, education, recreational, social or aesthetic purposes; or
(ii)
which has been substantially improved during the marriage by the other party or by both parties to the marriage; and
(b)
any other asset of any nature acquired during the marriage by one party or both parties to the marriage,
but does not include any asset (not being a matrimonial home) that has been acquired by one party at any time by gift or inheritance and that has not been substantially improved during the marriage by the other party or by both parties to the marriage.