One Monument Square Portland, ME 04101

Building Details

Year Built

1970

Spaces For Lease

at One Monument Square Contact us

Listing office The Dunham Group

Listing date May 13, 2026

Source Crexi

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Investment Insights

Based on property information with market context.

Available for sublease is a 12,671± SF, full floor, Class-A office suite located in One Monument Square, one of Portland's most prestigious buildings. The building is situated in the heart of Portland's Downtown Financial and Business District, adjacent to Monument Square. The location provides convenient access to the amenities of Portland's Old Port, Arts District, and working waterfront, all within walking distance. The 4th-floor space, currently leased to Dechra, was fully renovated in 2014. The suite features open work areas, private offices, abundant natural light, a breakroom/kitchen area, conference rooms, dedicated men's and women's restrooms, and direct elevator access.

Key Highlights

• Class‑A office suite in the prestigious One Monument Square, located in Portland's Downtown Financial and Business District.
• Full floor (12,671± SF) with direct elevator access.
• Fully renovated in 2014, featuring open work areas and private offices.

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FAQs

What type of property is this?

Office units - Full floor office suite in Portland's Financial District.

Where is this office units located?

The property is located at One Monument Square Portland, ME.

What are key features of this property?

This property features: Class‑A office suite in the prestigious One Monument Square, located in Portland's Downtown Financial and Business District.; Full floor (12,671± SF) with direct elevator access.; Fully renovated in 2014, featuring open work areas and private offices.