Our Properties

  • 123 Darling Avenue

    123 Darling Avenue, South Portland, Maine

    A 60,032 square foot, two story office building purchased by Monks O’Neil in 2015. Leased by Wex, Inc, a global provider of payment processing and information management services.

  • 275 US Route One, Cumberland, Maine

    275 US Route One, Cumberland, Maine

    A 16,168 square foot, Class A office building on 9.60 acres purchased by Monks O’Neil in December 2021. Leased by HUB International, a leading insurance brokerage firm with over 450 offices throughout North America.

  • One Portland Square, Portland, Maine

    A 10-story, 173,547 square foot Class A office building in the heart of downtown Portland. The building was acquired by Monks O'Neil in 2003 and includes offices and condominiums. The offices are under a long-term lease to law firm Verrill & Dana (V&D). The condominiums are owned by BCIA and are occupied mostly by BankNorth.

  • 550 Forest Avenue, Portland, Maine

    550 Forest Avenue, Portland, Maine

    Better known as the Sanborn Building, this multi-tenanted, two story, professional office building is located on the corner of Forest Avenue and Belmont Street in Portland. The property was acquired and expanded by Monks O'Neil in 1999 in response to a request for proposals from the General Services Administration for a new home of the Social Security Administration.

  • 6 Post Rd, Portsmouth, New Hampshire

    6 Post Rd, Portsmouth, New Hampshire

    A 44,650 square foot building was acquired by Monks O'Neil in 2002. Erie Scientific, a family-owned, veteran-operated company leases the space.