User blog comment:BuckMagic/How do you get back the "unique building" button/@comment-80.232.240.160-20120226101047/@comment-4111213-20120226201043

No. Like it says on the 3 confirmation windows you go through to ignore a sale, you will not see that particular offer again. the developers may offer the same buildings in future offers, but this is not guaranteed, there is no estimated date for it to happen (last time was Black Friday), and typically the building prices have been much higher.