JCPenney offers the A Girls' Dazzling Dream Dollhouse for $39.99. Coupon code "BIGELF" drops it to $33.99 and bags free in-store pickup. (Shipping otherwise costs $7.99.) That's $86 off and the lowest total price we could find. Sales tax is added where applicable. It measures 24" x 23" x 33" and fits all 11.5" dolls.

Of note, it's available for $31.99 with free in-store pickup via the coupon code listed above when using a JCPenney credit card.