Five leases totaling more than 40,000 square feet have been signed at 101 Summer St. in Boston.

Three office deals and two retail transactions, respectively, were facilitated with Murphy & Riley PC for 18,507 square feet; Louison, Costello, Condon, & Pfaff LLP for 10,785 square feet; R&Q USA Inc. for 8,278 square feet; Chipotle Mexican Grill for 1,996 square feet; and Supercuts hair salon for 734 square feet.

Synergy, a Boston-based real estate investment and development firm, purchased the five-story 50,673-square-foot office building in May. Since then, the company has secured leases that increase the occupancy to more than 81 percent, according to a statement.

"The quick lease up at 101 Summer St. speaks to the superior quality and location of the building. We welcome four new high-quality tenants to our growing Synergy portfolio and are very happy to accommodate the expansion needs of one of our existing tenants in Murphy & Riley," said Synergy President David Greaney.

The CB Richard Ellis office leasing team of Bill Crean, senior vice president/partner, and Kevin Kennedy, first vice president, represented the landlord in all of the office transactions in collaboration with the CBRE/Grossman Retail Advisors’ team handling the retail level transactions.

Murphy & Riley, PC has leased the entire second floor and the majority of the third. Louison, Costello, Condon & Pfaff LLP, attorneys at law, have already moved into the entire fourth floor. R&Q USA Inc., a specialist non-life insurance investor, service provider and underwriting manager, was represented by NAI Hunneman’s Jeffrey Becker and will lease the majority of the fifth floor.

Chipotle Mexican Grill and Supercuts hair salon will be located on the retail level and plan to open their doors during the fourth quarter.

CBRE/Grossman Retail Advisors’ Andrea Matteson, senior associate, brokered the retail deals on behalf of Synergy.