45 W 3rd St, Unit 512

1,406 Sq. Ft.
$996 / Sq. Ft.
1,406
Sq. Ft.
$996
per Sq. Ft.

Description

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...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.
  1. Listed by Mac Chinsomboon • Coldwell Banker Realty - Boston

Property Details for 45 West 3rd Street, Unit 512

Town
Boston
MLS Area
South Boston
Area
MA-Boston-South Boston, MA-Boston
Style
Mid-Rise
Garage Spaces
1
Open Parking Spaces
.00
Parking Spaces Total
1
LISTING UPDATED: 09/26/2025 11:05 PM

Property Details for 45 West 3rd Street, Unit 512

StatusSold
MLS #73391317
Days on Market48
Taxes$10,572 / year
HOA Fees$927 / month
Property TypeCondo
MLS TypeCondominium/Co-Op / Condo
Year Built2017
CountySuffolk County

Location

Listing Courtesy of Coldwell Banker Realty - Boston, Mac Chinsomboon

Sold By Compass, Samantha Hollister Johnson

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Building Information for 45 West 3rd Street, Unit 512

Building/ComplexPort 45Floor5Stories-Residences105Pet PolicyAllowedPet Policy DetailsPets AllowedYear Built2017

Payment Calculator

$8,858 per month

30 year fixed, 6.46% Interest

Principal and Interest

$7,050

Property Taxes

$881

HOA Dues

$927

The Payment Calculator is for illustrative purposes only.

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Property Information for 45 West 3rd Street, Unit 512

General Details
Property Details
  • Association Amenities: Elevator(s), Recreation Facilities, Fitness Center, Clubroom
  • Building Area Units: Square Feet
  • Community Features: Public Transportation, Shopping, Park, Highway Access, T-Station
  • Current Financing: Cash
  • Living Area: 1406.0
  • SqFt with Basement: No
  • Total Units: 105
  • Property Attached: Yes
  • Type of Condo: Condo
  • Waterfront: No
  • Water View: No
  • Year Built Details: Approximate
  • Year Built Source: Owner
Features
Interior Features
  • Appliances: Range, Dishwasher, Disposal, Microwave, Refrigerator, Washer, Dryer
  • Basement Features: N
  • Num of Baths: 2.0
  • Num of Full Baths: 2
  • Num of Half Baths: 0
  • Bathrooms Total Decimal: 2.00
  • Bathrooms Total Integer: 2
  • FireplaceYN: No
  • Fireplaces: 0
  • Flooring: Hardwood
  • Interior Features: Den
  • Interior Features: Intercom
  • Laundry Features: In Unit
  • SpaYN: No
Exterior Features
  • Exterior Features: Deck
  • Exterior Features: Deck
  • Patio And Porch Features: Deck
  • Structure Type: Mid-Rise
  • Waterfront Features: Harbor, Ocean, Direct Access, Walk to, 1 to 2 Mile To Beach, Beach Ownership(Public)
Parking Features
  • Attached Garage: No
  • Carport: No
  • Covered Spaces: 1.00
  • Garage: Yes
  • Garage Parking: Garage Door Opener, Assigned
  • Parking Features: Garage Door Opener, Assigned
  • Parking Features: Assigned
Utilities
  • Cooling: Central Air
  • Cooling: Yes
  • Heating: Central
  • Heating: Yes
  • Sewer: City/Town Sewer
  • Water: Public
Property Information
Property Info
  • Year Round: Yes
  • Documents Available: Master Deed, Rules & Regs, Management Association Bylaws, Floor Plans
  • Documents Count: 4
  • Farm Land Area Units: Square Feet
  • WARRANTY: No
  • Lot Size Units: Acres
  • Disclosures: RE tax of $10,573 w/ residential exemption,or $14,464 w/o.
Tax Information
  • Tax ID: 5087514
  • Assessments: $1,249,000
  • Book: 99999
  • Tax Year: 2025
  • Zoning: RES
Building / Association Information
Living Characteristics
  • Beds Total: 2
  • Total Living Levels: 1
Complex & Association Information
  • Association Fee Frequency: Monthly
  • Association Fee Includes: Water, Sewer, Insurance, Maintenance Structure, Maintenance Grounds, Snow Removal, Trash
  • Complex Name: Port45
  • Complex Complete: Yes
  • Management: Professional - Off Site
  • Association Security: Intercom, Concierge
  • Adult Community: No
Unit Information
Unit Information
  • Unit Building: 512
  • Unit Floor Level Integer: 5.0

Property History for 45 West 3rd Street, Unit 512

DateEvent & SourcePriceAppreciation
Sep 19, 2025

Sold

MLS PIN #73391317

$1,400,000—
Aug 21, 2025

Sold (Public Record)

Public Record #1914255549

$1,400,000—
Jul 19, 2025

Under Agreement

MLS PIN #73391317

—
DateEvent & SourcePrice
09/19/2025

Sold

MLS PIN #73391317

$1,400,000
08/21/2025

Sold (Public Record)

Public Record #1914255549

$1,400,000
07/19/2025

Under Agreement

MLS PIN #73391317

—

For completeness, Compass often displays two records for one sale: the MLS record and the public record.

Public Records for 45 West 3rd Street, Unit 512

Taxable ValueLand-Additions$1,249,000Total-
Tax Record2025$14,463 ($1,205 / month)
Home Facts
Beds2Baths2Total Finished SqFt1,406 SqFtAbove Grade Finished SqFt1,406 SqFtStories1StyleCondominiumYear Built2018ZoningCDCountySUFFOLKAPNSBOS W:06 P:01233 S:190

Schools near 45 West 3rd Street, Unit 512

This home is within Boston Public Schools.
Rating
School
Type
Grades
Distance
Public - PK to 8
Public - 9 to 12
Public - PK to 5
Public - PK to 6
Rating
School
Distance
James F. Condon School
PublicPK to 8

Josiah Quincy Elementary School
PublicPK to 5

Perkins Elementary School
PublicPK to 6

School ratings and boundaries are provided by GreatSchools.org and Pitney Bowes. This information should only be used as a reference. Proximity or boundaries shown here are not a guarantee of enrollment. Please reach out to schools directly to verify all information and enrollment eligibility.

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No guarantee, warranty or representation of any kind is made regarding the completeness or accuracy of descriptions or measurements (including square footage measurements and property condition), such should be independently verified, and Compass, Inc., its subsidiaries, affiliates and their agents and associated third parties expressly disclaims any liability in connection therewith. Photos may be virtually staged or digitally enhanced and may not reflect actual property conditions. Offers of compensation are subject to change at the discretion of the seller. No financial or legal advice provided. Equal Housing Opportunity. Subject to change at any time. Compass, Inc., its subsidiaries, affiliates and their agents and associated third parties make no guarantee, warranty or representation regarding the accuracy of any waterfront feature, water view or waterfront view.

Listing Courtesy of Coldwell Banker Realty - Boston, Mac Chinsomboon

The property listing data and information, or the images, set forth herein were provided to MLS Property Information Network, Inc., Martha's Vineyard MLS, CCIMLS, Link MLS, and Berkshire County Board of REALTORS from third party sources, including sellers, lessors and public records, and were compiled by MLS Property Information Network, Inc., Martha's Vineyard MLS, CCIMLS, Link MLS, and Berkshire County Board of REALTORS. The property listing data and information, and the images, 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., Martha's Vineyard MLS, CCIMLS, Link MLS, and Berkshire County Board of REALTORS and its subscribers disclaim any and all representations and warranties as to the accuracy of the property listing data and information, or as to the accuracy of any of the images, set forth herein.