Fields Corner Post Office Will Close in October 2026

The retail branch at 218 Adams St. is set to shut down on October 26, 2026, due to the expiration of its building lease.

Updated on Oct. 1, 2026 in Openings & Closings

Isometric editorial illustration of a brick neighborhood building, representing a local postal branch, in a muted color palette. — The USPS will close the Fields Corner retail branch in Boston on October 26, 2026, following the expiration of its building lease. AI Illustration. Upload story photo >

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The United States Postal Service plans to close the Fields Corner retail branch in Boston on October 26, 2026. This move follows the expiration of the lease for the facility located at 218 Adams St.

Why it matters

The closure is necessitated by the expiration of the lease at the current site. The building, known as the O'Hearn Building, was sold in 2025 and is slated for redevelopment.

The new 02122 Annex on 18 Clayton St. provides 24-hour access to post office boxes for residents. Additional retail services will be handled at the Codman Square Post Office located at 554 Washington St.

The players

United States Postal Service

The independent agency of the executive branch responsible for providing postal service in the United States.

Beantown Companies

The private firm that acquired the O'Hearn Building in 2025.

The details

Operations will transition to two separate locations to maintain local service. While post office box operations are moving to the Clayton Street annex, all other retail transactions must be completed at the Codman Square Post Office.

The O'Hearn Building was sold and its redevelopment plan was approved in 2025.
The Fields Corner retail branch is scheduled to officially close on October 26, 2026.

Market Landscape

This closure reflects broader trends in urban development where aging commercial leases are increasingly replaced by new mixed-use redevelopment projects. The shift aligns with city planners' initiatives to modernize historic neighborhood properties.

Customers who utilize post office boxes must prepare to transition to the new facility at 18 Clayton St. Those requiring in-person retail services will need to redirect their visits to the Codman Square location at 554 Washington St.

The takeaway

Residents should update their mailing addresses and service locations well before the October 2026 deadline. Picking up mail at the new annex will require valid government-issued photo identification.