We first consider the propriety of the trial court's inclusion of the entire equity value of the condominium as part of the marital estate. As previously indicated, defendant provided a $14,000 down payment for the condominium before the parties married, and equity was built up in the condominium as a result of payments solely made by defendant before the parties married. Further, the condominium may have appreciated after defendant purchased it but before the parties married. The sharing and maintenance of a marital home affords both spouses an interest in any increase in its value (whether by equity payments or appreciation) over the term of a marriage. Such amount is clearly part of the marital estate. However, the down payment, the equity built up before the parties' marriage, and any 4*4 appreciation that occurred before the parties' marriage should have been considered defendant's separate estate. Thus, we find the trial court erred in considering the entire equity value of the condominium as part of the marital estate. On remand, the trial court may not consider as part of the marital estate the equity value of the condominium immediately before the parties married.