1 of 41

Want to see this home?

45 W 3rd St Unit 512

Boston, MA 02127

2 beds
2 baths
1,406 sqft
$995 per sqft
2018 build
– on site

Rare PENTHOUSE at Award-Winning PORT45, Residence #512 offers 1,406 sqft of contemporary living space, 2 Bed+Den, Dining area, 2 en-suite baths, 2 private outdoor spaces (LR & roof), nearly floor to ceiling windows overlooking courtyard, custom blinds. Built in 2018, professionally managed, concierge, package HUB, grand lobby, modern fitness center, resident’s lounge & terrace, Silver LEED Certified, state-of-the-art Butterfly lobby system, garage offers electric charging stations, pet spa & dog run, bike storage. The kitchen features Bosch stainless steel appliances, hex glass/marble backsplash, Caesarstone island. Den w/ built-in sleeping loft w/ under working area/storage, its own closet. Located where South Boston meets Seaport, BCEC, Broadway MBTA (red line), Starbucks, other great restaurants/entertainment of West Broadway, just a hop over the bridge to the South End, Whole Foods at Ink Block/SOWA area. See 3D/Video via social media, by searching listing agent’s name.

Listing courtesy of MLSPIN / Mac Chinsomboon / Coldwell Banker Realty - Boston

Last checked: Checking… • Last updated Jun 16, 2025 •

MLS# 73391317 —

The Building

Year Built:

2018
Year Built Details:

Approximate
Year Built Source:

Owner
Building Name:

Port45
Structure Type:

Mid-Rise
Entry Level:

5
Basement:

N
Exterior Features:

Deck
Patio And Porch Features:

Deck
Security Features:

Intercom
Unit Number:

512
Stories Total:

1
Stories:

1
# of Units Total:

105
Building Area Total:

1406
Building Area Units:

Square Feet
Building Area Source:

Public Records

Interior

Rooms Total:

6
Interior Features:

Den
Flooring:

Hardwood
Fireplace:

false
Laundry Features:

In Unit

Room Dimensions

Living Area:

1406
Living Area Source:

Public Record

Location

Directions:

Corner of A Street and W 3rd Street
Latitude:

42.342132
Longitude:

-71.054289

The Property

Parcel Number:

5087341
Property Type:

Residential
Property Subtype:

Condominium
Property Attached:

true
Lot Size Units:

Acres
Zoning:

RES
Waterview:

No
Waterfront:

false
Waterfront Features:

Harbor
Farm Land Area Units:

Square Feet

Listing Agent

Contact info:

Taxes

Tax Year:

2025
Tax Book Number:

99999
Tax Annual Amount:

10572.42
Tax Assessed Value:

1249000

Beds

Bedrooms Total:

2

Baths

Total Baths:

2
Total Baths:

2
Full Baths:

2

The Listing

Home Warranty:

false
Sub Agency Relationship Offered:

No

Heating & Cooling

Heating:

Central
Heating:

true
Cooling:

Central Air
Cooling:

true

Utilities

Sewer:

Public Sewer
Water Source:

Public

Appliances

Appliances:

Range

The Community

Senior Community:

false
Community Features:

Public Transportation
Spa:

false
Pets Allowed:

Yes w/ Restrictions
Association Amenities:

Elevator(s)
Association Fee:

927
Association Fee Includes:

Water
Association Fee Frequency:

Monthly

Parking

Garage:

true
Attached Garage:

false
Garage Spaces:

1
Carport:

false
Parking Features:

Garage Door Opener
Covered Spaces:

1

Monthly cost estimate

Asking price

$1,399,000

Expense	Monthly cost
Mortgage	$7,491
Taxes	$881
Insurance	$384
HOA fees	$927
Utilities	$180 See report
Total	$9,863/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

Max Internet Speed

Xfinity

Provided by BroadbandNow®

Sale history

Date	Event	Source	Price	% Change
6/16/25 Jun 16, 2025	Listed / Active	MLSPIN	$1,399,000	3.6% (0.5% / YR)
7/23/18 Jul 23, 2018		MLSPIN	$1,350,000

Want a closer look?

Go see 45 W 3rd St

Or Call Toll Free 1-800-258-2512

We guarantee that we’ll never spam you.

* indicates a required field

More homes

Newest listings in Boston, MA

Similar sold homes

This condo located in South Boston, Boston, MA 02127 is currently for sale for $1,399,000. 45 W 3rd St Unit 512 is a 1,406 square foot condo with 2 beds and 2 baths that has been on Estately for 0 days. 45 W 3rd St Unit 512 is in the South Boston neighborhood of Boston and has a WalkScore® of 93, making it a walker’s paradise.

Listing Courtesy of: MLSPIN and Coldwell Banker Realty - Boston.

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.