Forum member dho7622u informs us that this week from October 23-29, Target will be offering roughly 5% off ALL LEGO City Space and Harbor theme sets. Deals that have a higher discount are City Space Center for $56 (reg.$69.99), City Marina for $40 (reg.$49.99) and City Harbour for $76.95 (reg.$89.99).
Note: Interestingly, some of the regular prices have been lowered as well. Though, Target did not mentioned that its on sale. Good example would be the LEGO City Train Station set for $39.99 (reg.$49.99).