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.
Sold for $1,400,000
$1,400,000
45 W 3rd St Unit 512, South Boston, MA 02127
2beds
1,406sqft
Condominium
Built in 2018
-- sqft lot
$1,417,200 Zestimate®
$996/sqft
$5,940 Estimated rent
Home value
$1,417,200
Estimated sales range
Not available
$5,940/mo
Zestimate® history
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List your homeWhat's special
Contemporary living spacePrivate outdoor spacesCustom blindsCaesarstone islandBuilt-in sleeping loftFloor to ceiling windowsBosch stainless steel appliances
Zillow last checked:
Listing updated:
Listed by:
Mac Chinsomboon 617-905-6622,
Coldwell Banker Realty - Boston 617-266-4430,
Mac Chinsomboon 617-905-6622
Bought with:
Samantha Hollister Johnson
Compass
Source: MLS PIN,MLS#: 73391317
Facts & features
Interior
Bedrooms & bathrooms
- Bedrooms: 2
- Bathrooms: 2
- Full bathrooms: 2
Heating
- Central
Cooling
- Central Air
Appliances
- Included: Range, Dishwasher, Disposal, Microwave, Refrigerator, Washer, Dryer
- Laundry: In Unit
Features
- Den
- Flooring: Hardwood
- Basement: None
- Has fireplace: No
Interior area
- Total structure area: 1,406
- Total interior livable area: 1,406 sqft
- Finished area above ground: 1,406
Property
Parking
- Total spaces: 1
- Parking features: Garage Door Opener, Assigned
- Garage spaces: 1
Features
- Patio & porch: Deck
- Exterior features: Deck
- Waterfront features: Harbor, Ocean, Direct Access, Walk to, 1 to 2 Mile To Beach, Beach Ownership(Public)
Details
- Parcel number: 5087514
- Zoning: RES
Construction
Type & style
- Home type: Condo
- Property subtype: Condominium
- Attached to another structure: Yes
Condition
- Year built: 2018
Utilities & green energy
- Sewer: Public Sewer
- Water: Public
Community & HOA
Community
- Features: Public Transportation, Shopping, Park, Highway Access, T-Station
- Security: Intercom, Concierge
HOA
- Amenities included: Elevator(s), Recreation Facilities, Fitness Center, Clubroom
- Services included: Water, Sewer, Insurance, Maintenance Structure, Maintenance Grounds, Snow Removal, Trash
- HOA fee: $927 monthly
Location
- Region: South Boston
Financial & listing details
- Price per square foot: $996/sqft
- Tax assessed value: $1,249,000
- Annual tax amount: $10,572
- Date on market: 12/9/2025
Price history
| Date | Event | Price |
|---|---|---|
| 9/19/2025 | Sold | $1,400,000+0.1%$996/sqft |
Source: MLS PIN #73391317 Report a problem | ||
| 7/20/2025 | Contingent | $1,399,000$995/sqft |
Source: MLS PIN #73391317 Report a problem | ||
| 6/16/2025 | Listed for sale | $1,399,000+3.6%$995/sqft |
Source: MLS PIN #73391317 Report a problem | ||
| 7/19/2018 | Sold | $1,350,000$960/sqft |
Source: Public Record Report a problem | ||
Public tax history
| Year | Property taxes | Tax assessment |
|---|---|---|
| 2025 | $14,463 +10% | $1,249,000 +3.5% |
| 2024 | $13,149 +4.5% | $1,206,300 +3% |
| 2023 | $12,577 +1.7% | $1,171,000 +3% |
| 2022 | $12,369 +2% | $1,136,900 |
| 2021 | $12,131 +15.9% | $1,136,900 +14.7% |
| 2020 | $10,463 | $990,800 |
Find assessor info on the county website
Neighborhood: South Boston
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Nearby schools
GreatSchools rating
- 3/10James F. Condon SchoolGrades: PK-8Distance: 0.3 mi
- 3/10Quincy Upper SchoolGrades: 6-12Distance: 0.6 mi
- 8/10Josiah Quincy Elementary SchoolGrades: PK-5Distance: 0.7 mi
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Estimated market value
$1,417,200
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Estimated market value
$1,417,200
- Massachusetts
- Suffolk County
- Boston
- 02127
- South Boston
- 45 W 3rd St Unit 512
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