paying off houses sooner

[mike l.]

im thinking of putting all my money into paying off my house and a condo we own much sooner than the loan period (30 yrs). like 2 years for the condo ($165k owed) and 5 years for the house ($475k owed). there are no prepays on either loan. is this a good idea or bad idea and why? i have no other debt and would prefer to not pay so much interest to banks over the next several years. we have NO plans to sell these houses for a long time.