15 Union Wharf # 15, Boston MA 02109

Boston, MA 02109 • Waterfront

$5,500,000

Est. $33,484/month

4

Beds

2.5

Baths

2,282

Sq Ft

$2,410

Price/Sq Ft

0.05

Acres

1855

Year Built

Condominium

Type

1

Days on Market

Active Listed Jun 17, 2026 • MLS# 73537004 Copied!

About this home

Newly constructed townhouse at Harbor’s edge on the south side of prestigious Union Wharf. Flawlessly designed and custom-built with exposures on two sides and unobstructed views of Boston's Harbor and Skyline. Living/Dining area offers ceiling-to-floor glass, views, fireplace, white oak floors. Center Chef’s kitchen with Scavolini Italian Cabinetry, Wolf/Sub Zero, waterfall island and Italian Calacatta Marble. Master Suite features grand ceiling, additional balcony overlooking the Harbor and City, Ensuite bath w/dual vanities, walk-in steam shower, skylight and Italian Marble. 2 guest bedrooms with built-ins & large Den with views. Sonos invisible Sound, Brilliant light system, Italian light crystals. New: Roof, Windows, Doors, Skylights, HVAC, Electrical, HW Heater. Union Wharf features 24-hour gated parking, guest parking, sea-side heated swimming pool, on-site management, marina slips, and a common roof deck. On the primary footpath of The Waterfront.

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Public Records

Current Owner

Owner GRUBER WILLIAM R

Mailing Address 75 HOPESTILL BROWN RD, SUDBURY, MA, 01776

Land Use

Use Code 102

Description Condominium

Style Row Middle

Tax Information

Assessed Value $1,311,900

Tax Rate $10.29 per $1,000

Base Tax $13,499

CPA Surcharge 1% ($125)

Estimated Annual Tax $13,624

Assessment History

Year	Land	Building	Total	Change
FY2023	$0	$1,311,900	$1,311,900	—

Sale History

Date	Price	Book/Page
Jun 10, 2022	$1,975,000	67782/13
Jun 7, 2022	$2,225,000	67761/69
May 27, 2022	$1,800,000	67709/253
May 16, 2022	$6,300,000	67647/131
Apr 29, 2022	$3,675,000	67568/274
Mar 11, 2022	$1	67303/283
Nov 1, 2021	$3,650,000	66585/310
Oct 13, 2021	$3,495,000	66466/310
Aug 31, 2021	$6,000,000	66194/1
Aug 2, 2021	$2,900,000	66014/246

Building Permit History

Issued	Type / Work	Status	Value
Jan 22, 2025	Plumbing Permit PLUMBING Plumbing Permit #PL1684868	Closed	$26,000
Jan 21, 2025	Electrical Low Voltage LVOLT Low Voltage Permit #ELV1684599	Closed	$2,000
Jan 21, 2025	Electrical Fire Alarms FA Fire Alarm Permit #EFA1684597	Open	$1,400
Jan 21, 2025	Electrical Permit ELECTRICAL Electrical Permit #E1684596	Closed	$42,000
Dec 29, 2022	Electrical Permit ELECTRICAL Electrical Permit #E1426425	Closed	$28,000
Aug 16, 2022	Long Form/Alteration Permit INTEXT Interior/Exterior Work Permit #ALT1345365	Closed	$400,000

Data: City of Boston Open Data (Analyze Boston)

Municipal Context: BOSTON

Median Home Value $745,000

Avg SF Tax Bill $4,523

Residential Tax Rate $10.29/1000

CPA Surcharge 1%

County Suffolk

Property Data Comparison

Field	Assessor	MLS	Match
Year built	1,855	1,855	✓

Match: geocode_proximity (71.2% confidence) · Data as of Jun 1, 2026

Property Overview

Property Type

Condominium

Listing Type

For Sale

Year Built

1855

Bedrooms

4

Full Bathrooms

2

Half Bathrooms

1

Living Area

2,282 sq ft

Total Rooms

6

Stories

3

Entry Level

1

Facts & Features

Central AC

Home Facts

Type Residential

Style Condominium

Year Built 1855

Living Area 2,282 sq ft

Lot Size 0.05 acres

Bedrooms 4

Full Baths 2

Half Baths 1

Total Rooms 6

Interior

Heating Forced Air, Heat Pump, Individual, Unit Control

Cooling Central Air, Heat Pump, Individual, Unit Control

Flooring Marble, Hardwood

Appliances Oven, Dishwasher, Disposal, Microwave, Range, Refrigerator, Freezer, Washer, Dryer, Water Treatment, Range Hood, Plumbed For Ice Maker

Fireplace None

Fireplaces 1

Basement N

Laundry In Unit, Electric Dryer Hookup, Washer Hookup

Features Sauna/steam/hot Tub, Wired For Sound, Internet Available - Broadband, Internet Available - Dsl, High Speed Internet

Exterior

Construction Brick, Stone

Architecture None

Roof Other

Features Patio, Balcony

Pool Association, In Ground, Heated

Spa None

Fencing None

Patio/Porch Patio

Parking

Features Deeded, Driveway

Total Spaces 1

Utilities

Electric Circuit Breakers, 200+ Amp Service

Water Public

Sewer Public Sewer

Gas None

Other For Electric Range, For Electric Oven, For Electric Dryer, Washer Hookup, Icemaker Connection

Financial

Annual Tax $38,686

Assessed Value $3,089,900

Interior Features

Flooring: Marble, Hardwood

Appliances: Oven, Dishwasher, Disposal, Microwave, Range, Refrigerator, Freezer, Washer, Dryer, Water Treatment, Range Hood, Plumbed For Ice Maker

Interior Features: Sauna/Steam/Hot Tub, Wired for Sound, Internet Available - Broadband, Internet Available - DSL, High Speed Internet

Windows: Insulated Windows, Storm Window(s)

Basement: N

Laundry: In Unit, Electric Dryer Hookup, Washer Hookup

Security: Intercom, Security Guard, Security Gate

Construction & Materials

Year Built: 1855

Effective Year (Renovated): 2022

Structure Type: Townhouse

Exterior Materials: Brick, Stone

Roof: Other

Foundation:

Stories: 3

Heating, Cooling & Utilities

Heating: Forced Air, Heat Pump, Individual, Unit Control

Heating Zones: 3

Cooling: Central Air, Heat Pump, Individual, Unit Control

Cooling Zones: 3

Hot Water:

Water Source: Public

Sewer: Public Sewer

Energy Features:

Exterior & Lot

Exterior Features: Patio, Balcony

Patio & Porch: Patio

Fencing:

Other Structures:

Lot Features:

Road Surface:

Parking & Garage

Total Parking Spaces: 1

Parking Features: Deeded, Driveway

Special Features

Fireplaces: 1

Fireplace Type:

Waterfront: Yes

Waterfront Type: Waterfront, Harbor, Dock/Mooring, Direct Access

Community Amenities: Public Transportation, Shopping, Pool, Tennis Court(s), Park, Walk/Jog Trails, Medical Facility, Laundromat, Bike Path, Conservation Area, Highway Access, House of Worship, Marina, Private School, Public School, T-Station, University, Other

Location

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Neighborhood

Waterfront

15 Union Wharf # 15, Boston MA 02109

Boston, MA 02109

Walkability

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Nearby Schools

School information not available for this location.

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Property Tax $3,224

Homeowners Insurance $200

HOA Fee $2,249/mo

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95% Interest

Year 15

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Property History

Property Timeline

🏠

Listed for Sale

Jun 17, 2026

$5,500,000

Original listing

Agent: Carmela Laurella Office: CL Properties

Date	Event	Price	Change	$/sqft	Details
06/17/2026	🏠 Listed for Sale	$5,500,000	-	-	Original listing

Price & Status History

Date	Event	Price	Change
Jun 17, 2026	New Listing Added	$5,500,000	—

Market Statistics

Days on Market

1 days

Price per Sq Ft

$2,410

Tax History

Year	Taxes	Assessment
2026	$38,686	$3,089,900

Financial Details

Annual Property Tax

$38,686

Tax Year 2026

HOA Fee

$2,249

Monthly

Assessed Value

$3,089,900

Monthly Payment Breakdown

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Listed for Sale

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15 Union Wharf # 15, Boston MA 02109

About this home

Public Records

Current Owner

Land Use

Tax Information

Assessment History

Sale History

Building Permit History

Municipal Context: BOSTON

Property Data Comparison

Property Overview

Facts & Features

Home Facts

Interior

Exterior

Parking

Utilities

Financial

Interior Features

Construction & Materials

Heating, Cooling & Utilities

Exterior & Lot

Parking & Garage

Special Features

Location

Neighborhood

Walkability

Nearby Schools

Monthly Payment Calculator

Monthly Payment Breakdown

Loan Summary

Rate Impact

Payment Over Time

Property History

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Listed for Sale

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Listing Information

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