To paraphrase a Gershwin tune: Summertime, and the selling ain"t easy/ Buyers gone fishing, and the volume is low.

Fifteen contracts were signed last week in Manhattan at $4 million and above, two less than last week and three less than the week before that. We haven’t cracked 20 contracts signed since the last week in June.

The No. 1 contract was 10A at 155 West 11th Street, asking $17,025,000. This 3,951-square-foot unit has 4 bedrooms and 4.5 bathrooms, and features a large living room and a family room off a kitchen with a balcony. It is in the Greenwich Lane, a new complex of 5 buildings with 194 condos and 5 townhouses that is reporting over 96% sold. Remaining inventory is priced north of $3,500/square foot. Amenities include concierge, doorman, fitness center, pool, children’s room, and a garage.

The No. 2 contract was 18F at 530 Park Avenue, asking $11.975 million, reduced from $16.5 million when it went on the market in September. The condo has 3,328 square feet with 3 bedrooms, 3.5 bathrooms, and 2 terraces totaling 1,009 square feet. The living room, dining room, and family room face Park Avenue.