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150 Seaport Blvd. Unit GPH

Boston, MA 02210

6 beds
10 baths
10,609 sqft
$4,665 per sqft
2022 build
– on site

Experience a new echelon of luxury living at The Grand Penthouse, the crown jewel of the St. Regis Residences. Encompassing over 10,000 sq ft across 2 dramatic levels, this one-of-a-kind home sits atop Boston’s iconic Seaport, offering panoramic views of Boston Harbor and the city skyline through soaring floor-to-ceiling windows. Designed with extraordinary attention to detail, the residence features a double-height great room, a sculptural curved floating staircase with glass railings, and a grand foyer with an Italian marble radial inlay floor. Every element is curated for refined living and entertaining at scale. The outdoor living experience is equally extraordinary, including a custom infinity-edge pool with a clear acrylic bottom, and a retractable Libart International glass roof, and sweeping water views from every angle. Blending the privacy of a custom home with the legendary service of the St. Regis brand, The Grand Penthouse is a truly rare offering Boston has never seen.

Listing courtesy of MLSPIN / The Sarkis Team / Douglas Elliman Real Estate - The Sarkis Team

Last checked: Checking… • Last updated Jun 6, 2025 •

MLS# 73383587 —

The Building

Year Built:

2022
Year Built Details:

Actual,Renovated Since
Year Built Source:

Owner
Building Name:

St. Regis
Structure Type:

High-Rise
Construction Materials:

Stone
Entry Level:

21
Common Walls:

No One Above
Basement:

N
Exterior Features:

Deck - Roof
Patio And Porch Features:

Deck - Roof
Accessibility Features:

Accessible Entrance
Security Features:

Intercom
Unit Number:

GPH
Stories Total:

2
Stories:

2
# of Units Total:

114
Building Area Total:

10609
Building Area Units:

Square Feet
Building Area Source:

Measured

Interior

Rooms Total:

12
Interior Features:

Sauna/Steam/Hot Tub
Flooring:

Marble
Fireplace:

true
Fireplaces Total:

1
Laundry Features:

In Unit

Room Dimensions

Living Area:

10609
Living Area Source:

Measured

Location

Directions:

Located at 150 Seaport Blvd in the Seaport; valet parking available by appointment
Latitude:

42.350754
Longitude:

-71.042766

The Property

Parcel Number:

5233719
Property Type:

Residential
Property Subtype:

Condominium
Property Attached:

true
Lot Size Units:

Acres
Zoning:

0102
View:

City
View:

true
Waterview:

Yes
Waterview Features:

Dock/Mooring
Waterfront:

true
Waterfront Features:

Waterfront
Farm Land Area Units:

Square Feet

Listing Agent

Contact info:

Taxes

Tax Year:

2025
Tax Book Number:

70662
Tax Annual Amount:

420004
Tax Assessed Value:

35911700

Beds

Bedrooms Total:

6

Baths

Total Baths:

9
Total Baths:

10
Full Baths:

8
Half Baths:

2
Master Bath Features:

Yes

The Listing

Home Warranty:

false

Heating & Cooling

Heating:

Forced Air
Heating:

true
Cooling:

Central Air
Cooling:

true

Utilities

Utilities:

for Gas Range
Sewer:

Public Sewer
Water Source:

Public

Appliances

Appliances:

Range

The Community

Senior Community:

false
Community Features:

Public Transportation
Spa:

true
Spa Features:

Hot Tub/Spa
Pool Features:

Association
Pets Allowed:

Yes w/ Restrictions
Association Amenities:

Hot Water
Association Fee:

22930
Association Fee Includes:

Gas
Association Fee Frequency:

Monthly

Parking

Garage:

true
Attached Garage:

true
Garage Spaces:

4
Carport:

false
Parking Features:

Attached
Covered Spaces:

4

Monthly cost estimate

Asking price

$49,500,000

Expense	Monthly cost
Mortgage	$265,057
Taxes	$35,000
Insurance	$13,612
HOA fees	$22,930
Utilities	$472 See report
Total	$337,071/mo.^*
	^*This is an estimate

Explore the Area

My Commute

From

Walk Score®

Provided by WalkScore® Inc.

Bike Score®

Provided by WalkScore® Inc.

Transit Score®

Provided by WalkScore® Inc.

Soundscore™

Provided by HowLoud

Air Pollution Index

Provided by ClearlyEnergy

Sale history

Date	Event	Source	Price	% Change
6/2/25 Jun 2, 2025	Listed / Active	MLSPIN	$49,500,000

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This condo located in South Boston, Boston, MA 02210 is currently for sale for $49,500,000. 150 Seaport Blvd. Unit GPH is a 10,609 square foot condo with 6 beds and 10 baths that has been on Estately for 13 days. 150 Seaport Blvd. Unit GPH is in the South Boston neighborhood of Boston and has a WalkScore® of 85, making it very walkable.

Listing Courtesy of: MLSPIN and Douglas Elliman Real Estate - The Sarkis Team.

The property listing data and information set forth herein were provided to MLS Property Information Network, Inc. (MLSPIN) from third party sources, including sellers, lessors and public records, and were compiled by MLS Property Information Network, Inc. The property listing data and information are for the personal, non commercial use of consumers having a good faith interest in purchasing or leasing listed properties of the type displayed to them and may not be used for any purpose other than to identify prospective properties which such consumers may have a good faith interest in purchasing or leasing. MLS Property Information Network, Inc., Estately and its subscribers disclaim any and all representations and warranties as to the accuracy of the property listing data and information set forth herein. Users may not reproduce or redistribute the data found on this site. The data is for viewing purposes only. All information provided is deemed reliable but is not guaranteed by Estately or MLSPIN and should be independently verified.