- Type
- Sale
- Status
- Active
- Asking Price
- $1
- Price/SF
- $0.00/SF
- List Date
- Apr 6, 2026
- Days on Market
- 140
- Financing Available
- No
- Sale Investment
- YES
- Owner Occupied
- No
- Last Verified
- Jul 21, 2026
- Agent Ownership Interest
- No
OFFICE TOWER | PARKING GARAGE FOR SALE
Porta & Company is pleased to present the opportunity to acquire 511. Congress Street ("511 Congress" or "the Property"), a 128,400 square foot Class A office building with a 256 space on-site parking garage in the rear right in the heart of Downtown Portland. The property at 511 Congress enjoys a premier location opposite Monument Square in the center of the city. With the ability to immediately occupy full floors and the ability to take advantage of the opportunity zone program, this opportunity is ideal for both investors and owner occupants.
Space Details
- Primary Use
- Office
- Type
- Office
- Subtype
- Mixed use
- Building Class
- Class A
- Size
- 128,400 SF
- Acreage
- 1.01 Acres
- Occupancy Type
- Multi Tenant
- Year Built
- 1974
- Year Renovated
- 2013
- Floors
- 9
- Zoning
- B-3
- Sprinklered
- Yes
- County
- Cumberland
- Submarket
- Portland-South Portland
- Type
- Sale
- Status
- Active
- Asking Price
- $1
- Price/SF
- $0.00/SF
- List Date
- Apr 6, 2026
- Days on Market
- 140
- Financing Available
- No
- Sale Investment
- YES
- Owner Occupied
- No
- Last Verified
- Jul 21, 2026
- Agent Ownership Interest
- No
OFFICE TOWER | PARKING GARAGE FOR SALE
Porta & Company is pleased to present the opportunity to acquire 511. Congress Street ("511 Congress" or "the Property"), a 128,400 square foot Class A office building with a 256 space on-site parking garage in the rear right in the heart of Downtown Portland. The property at 511 Congress enjoys a premier location opposite Monument Square in the center of the city. With the ability to immediately occupy full floors and the ability to take advantage of the opportunity zone program, this opportunity is ideal for both investors and owner occupants.
Space Details
- Primary Use
- Office
- Type
- Office
- Subtype
- Mixed use
- Building Class
- Class A
- Size
- 128,400 SF
- Acreage
- 1.01 Acres
- Occupancy Type
- Multi Tenant
- Year Built
- 1974
- Year Renovated
- 2013
- Floors
- 9
- Zoning
- B-3
- Sprinklered
- Yes
- County
- Cumberland
- Submarket
- Portland-South Portland