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Fan Pier's final tower begins closings, capping Fallon's Seaport buildout

Fan Pier's final tower begins closings, capping Fallon's Seaport buildout

Built World Boston, MA local

The 122-unit One Harbor Shore is the last residential piece of the 3 million-square-foot Fan Pier master plan.

Today: One Harbor Shore begins closings

Overview

Updated 47 minutes ago

The last residential tower at Boston's Fan Pier has begun closings, with more than a third of its 122 units already presold. One Harbor Shore, a 15-story luxury condo building, completes The Fallon Company's three-million-square-foot mixed-use development on the South Boston waterfront, a project that began in 2005.

The milestone lands as Boston's luxury condo market faces headwinds. The average 30-year mortgage rate sits at 7.4 percent, and 451 unsold units linger in other new high-end buildings. The tower's sales pace will show whether the Seaport's transformation can weather rising borrowing costs.

Why it matters

One Harbor Shore is the last new luxury condo tower in Boston's urban core; its sales will test demand against 7.4% mortgage rates.

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Key Indicators

122
Units at One Harbor Shore
Total condominium units in the final Fan Pier tower.
>33%
Units presold
More than a third of units sold before closings began.
7.4%
Average 30-year mortgage rate
As of Oct 8, 2026, per Freddie Mac.

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People Involved

Organizations Involved

Timeline

2005 October 2026

5 events Latest: Today
Tap a bar to jump to that date
  1. One Harbor Shore begins closings

    Today Milestone

    The 122-unit condo tower begins closings after preselling more than a third of its units, completing Fan Pier's master plan.

  2. Vertex opens headquarters

    Move-in

    Vertex Pharmaceuticals opens its headquarters at Fan Pier, adding 1,500 employees to the neighborhood.

  3. Condo tower plans announced

    Announcement

    Fallon announces plans for the first luxury condo tower at Fan Pier, aiming to start construction in 2013.

  4. Groundbreaking on first office

    Construction

    Fallon breaks ground on One Marina Park Drive, the first speculative office building at Fan Pier.

  5. Fallon acquires Fan Pier

    Acquisition

    The Fallon Company buys the nine-block Fan Pier site from the Pritzker family, who had failed to advance development.

Scenarios

1

One Harbor Shore sells out by 2028

Possible Resolves by Oct 14, 2028

Discussed by: Banker & Tradesman and The Collaborative Companies point to limited new supply and strong Seaport demand.

With half of buyers paying cash and no other new luxury towers planned in the urban core, demand could absorb the 122 units within two years. The project's prime harbor location supports sustained interest despite mortgage rate headwinds.

2

Price cuts as sales slow

Possible Resolves by Q2 2027

Discussed by: Some market analysts note the 7.4% mortgage rate and 451 unsold luxury units elsewhere could pressure pricing.

If mortgage rates stay high and economic uncertainty grows, potential buyers may wait. The Fallon Company has said it will adjust prices periodically. A reduction would signal the market's weakness.

3

Steady sales pace with prices held

Likely Resolves by Oct 14, 2027

Discussed by: The project's reported presales and cash buyer ratio suggest resilience.

Despite headwinds, the tower could sell steadily, with half of units going to cash buyers who are insensitive to rates. Prices may hold or slightly increase, supporting the Seaport's luxury market.

Historical Context

2 moments from history that rhyme with this story — and how they unfolded.

2006-2019

Hudson Yards (2006-2019)

A $25 billion development on Manhattan's West Side, built on a platform above active rail yards. It was the largest private real estate development in U.S. history, with skyscrapers, residential towers, and a public square.

Then

First phase opened in 2019, with offices and retail attracting major companies.

Now

Created a new neighborhood and spurred billions in surrounding investment.

Why this matters now

Like Fan Pier, Hudson Yards transformed an underused industrial area into a dense mixed-use district over decades, facing similar challenges of financing and market cycles.

1988-2000s

Canary Wharf (1988-2000s)

A massive office and retail development on disused docklands in East London, built by Olympia & York. It aimed to create a second financial district.

Then

Initial oversupply and recession led to bankruptcy and incomplete towers in the 1990s.

Now

After a bailout and phased development, it became a major financial centre, home to many banks.

Why this matters now

Shows how a waterfront mega-project can face setbacks but ultimately succeed over decades, much like Fan Pier's evolution.

Sources

(4)