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North End/Waterfront, Boston · Condominium Association

Union Wharf Condominiums

A 89-unit condominium community in North End/Waterfront, Boston.

Median Sale
$2.0m
Price / Sq Ft
$1416
Avg Days on Mkt
69 days
Sold
4
HOA Range
$800–2640/mo
Total Units
89

Market figures reflect closed sales over the last 12 months. Data sourced from MLS PIN.

Homes for Sale in Union Wharf

Overview

Union Wharf occupies one of Boston's most storied waterfront addresses at 343 Commercial Street, a granite pier built in 1832 and converted to condominiums in 1978. The 89-unit association sits directly at the harbor's edge in the North End/Waterfront district, offering brick-and-beam residences that range from loft-style flats to expansive multi-level townhomes. Over the last 12 months, four sales closed at a median price of $2,037,500, or roughly $1,416 per square foot, with units averaging 69 days on market.

Amenities & Features

  • Common roof deck with Harbor and City views
  • Seasonal harbor-side pool
  • Deeded parking (select units include one or two spaces)
  • Guest parking availability
  • Marina slips and boat slips available
  • Brick-and-beam construction with exposed original beams
  • Wood-burning fireplaces and wood-burning stoves in many residences
  • Private balconies, terraces, and decks—some among the largest on the Waterfront
  • In-unit washer/dryer, AC, and HVAC in select units
  • Direct, private entries in townhouse and loft units

HOA fees range from approximately $800 to $2,640 per month, reflecting the wide span between compact flats and 4,000+ square-foot townhomes.

Unit Types & Layouts

The building's floor plans are unusually varied. On the smaller end are loft-like 1+ bedroom, 2-bath duplexes with full baths on each level, high ceilings, and custom built-ins. Mid-range residences include 2-bedroom corner units, penthouses with 2,000+ square feet of single-floor living, and 2-bedroom-plus-study layouts with chef's kitchens featuring Subzero, Wolf, and Viking appliances.

Townhomes are the marquee product here—south-facing homes positioned at the "nose" of the wharf, some with 20-foot open loft ceilings, multiple fireplaces, and several private decks. The largest reaches 4,600 square feet with 4+ bedrooms, four private decks, and 2+ fireplaces. Penthouses offer soaring ceilings, skylights, floor-to-ceiling windows, and private terraces. A handful of units were originally used as commercial office space, providing customization opportunities. Three-sided end units and corner residences maximize light and panoramic water views.

Living at Union Wharf Condominium

Positioned at water's edge, Union Wharf places residents steps from the Financial District, historic Faneuil Hall, TD Garden, and the restaurants and shops of the North End. Many homes deliver direct, unobstructed Harbor and City skyline views, with south-facing exposures prized throughout the association. The combination of marina access, a harbor-side pool, and a private-pier setting makes this one of the Waterfront's most sought-after enclaves.

Recent Sales

Sold Jul 20267 Union Wharf
$4.0m
7 Union Wharf #7
2 bd · 3 ba · 2,281 sqft · 62 days
Sold Jun 2026343 Commercial St
$1.8m
343 Commercial St #501
1 bd · 3 ba · 1,363 sqft · 9 days
Sold Dec 2025343 Commercial St
$2.3m
343 Commercial St #212
2 bd · 2 ba · 1,754 sqft · 165 days
Sold Aug 2025343 Commercial St
$1.4m
343 Commercial St #104
2 bd · 2 ba · 1,082 sqft · 40 days
Sold Jul 20258 Union Wharf
$5.2m
8 Union Wharf #8
4 bd · 3 ba · 2,303 sqft · 29 days
Sold Jun 2025343 Commercial St
$3.8m
343 Commercial St #114
4 bd · 4 ba · 3,911 sqft · 258 days

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About Your Union Wharf Expert

JR

Justin Rollo

Union Wharf Condominium Specialist · Signal Real Estate

Justin Rollo is a Massachusetts real estate expert with over a decade of experience and hundreds of South Shore transactions. He tracks every sale, pending, and price movement inside Union Wharf — so whether you're buying into the community or thinking about selling, you're working with someone who knows this specific association inside and out.

Ask Justin about Union Wharf →

Frequently Asked Questions

How much are condos at Union Wharf Condominium selling for?

Over the last 12 months, units at Union Wharf Condominium sold at a median of $2,037,500, about $1416 per square foot.

What are the HOA / condo fees at Union Wharf Condominium?

Monthly condo fees at Union Wharf Condominium currently range from roughly $800 to $2640, depending on unit size and what the association's master policy covers.

How many units are in Union Wharf Condominium?

Union Wharf Condominium is a 89-unit condominium association in Boston, MA.

How fast do condos sell at Union Wharf Condominium?

Recent sales at Union Wharf Condominium averaged about 69 days on market, with 4 closings in the period.