45 W 3rd St # 512, Boston MA 02127
Boston, MA 02127 • South Boston
$1,400,000
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Sale Statistics
Sale Overview
Original List Price:
$1,399,000
Final Sale Price:
$1,400,000
Difference:
+$1,000 (+0.1%)
Performance Metrics
100.1%
List to Sale Ratio
Sold above asking price
46
Days on Market
Average time
Price per Square Foot Analysis
Original $/sq ft:
$995
Sale $/sq ft:
$996
This property sold for $996 per square foot
Sale Summary
This property sold for 0.1% above the original asking price, indicating strong buyer demand.
The property spent 46 days on market before selling.
Nearby Sales Comparison
Based on 50 similar properties sold within 0.5 miles in the last 90 days
This Property
$996/sq ft
Area Median
$627/sq ft
Difference
+59.0%
This property sold for significantly more per square foot than similar nearby properties, suggesting premium features or condition.
About this home
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.
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Public Records & Permits
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Recently Sold Nearby
Property History
Market Insights
0.1%
Price Range
48
Total Days on Market
Property Timeline
Sold
Sep 19, 2025
$1,400,000
Property sold
Days on Market: 48
Listed for Sale
Jun 16, 2025
$1,399,000
Original listing
Agent: Mac Chinsomboon
Office: Coldwell Banker Realty - Boston
| Date | Event | Price | Change | $/sqft | Details |
|---|---|---|---|---|---|
| 09/19/2025 | ✓ Sold | $1,400,000 | - | - | Property sold |
| 06/16/2025 | 🏠 Listed for Sale | $1,399,000 | - | - | Original listing |
Tax History
| Year | Taxes | Assessment |
|---|---|---|
| 2025 | $10,572 | $1,249,000 |
Financial Details
Annual Property Tax
$10,572
Tax Year 2025
HOA Fee
$927
Monthly
Assessed Value
$1,249,000
Facts & Features
1 Car Garage
Central AC
Home Facts
Type
Residential
Style
Condominium
Year Built
2018
Living Area
1,406 sq ft
Bedrooms
2
Full Baths
2
Total Rooms
6
Interior
Heating
Central
Cooling
Central Air
Flooring
Hardwood
Appliances
Range, Dishwasher, Disposal, Microwave, Refrigerator, Washer, Dryer
Fireplace
None
Basement
N
Laundry
In Unit
Features
Den
Exterior
Construction
None
Architecture
None
Roof
None
Features
Deck
Pool
None
Spa
None
Fencing
None
Patio/Porch
Deck
Parking
Garage Spaces
1
Has Garage
Yes
Features
Garage Door Opener, Assigned
Total Spaces
1
Utilities
Electric
None
Water
Public
Sewer
Public Sewer
Gas
None
Other
None
Financial
Annual Tax
$10,572
Assessed Value
$1,249,000
HOA & Community
HOA Fee
$927 Monthly
Fee Includes
Water, Sewer, Insurance, Maintenance Structure, Maintenance Grounds, Snow Removal, Trash
Amenities
Elevator(s), Recreation Facilities, Fitness Center, Clubroom
Optional Fee Includes
None
MA Disclosures
Seller Disclosures
Re Tax Of $10, 573 W/ Residential Exemption, Or $14, 464 W/o.
Additional Details
Possession
None
Accepted Financing
None
Structure Type
["Mid-Rise"]
Unit/Building
512
Sq Ft Source
Public Record
Sq Ft Disclosures
Matterport measurement shows even larger at 1572sqft
Documents
Master Deed, Rules & Regs, Management Association Bylaws, Floor Plans (4)
County
Suffolk
Total market time (incl. prior listings)
48 days
Property Overview
Property Type
Condominium
Listing Type
Sold
Year Built
2018
Bedrooms
2
Full Bathrooms
2
Living Area
1,406 sq ft
Total Rooms
6
Stories
1
Entry Level
5
Floor Layout
Interactive room guide
Floor Layout
Finished Area
1,406 sq ft above grade
Display Options
Outdoor Areas
Patio & porchDeck
Room Markers
BABathroom (4)
BRBedroom (5)
DDining (1)
KKitchen (1)
LLiving (2)
OOffice (1)
Conceptual diagram based on MLS room data. It is not to scale and is not a substitute for architectural plans or on-site measurements.
Interior Features
Flooring:
Hardwood
Appliances:
Range, Dishwasher, Disposal, Microwave, Refrigerator, Washer, Dryer
Interior Features:
Den
Windows:
Basement:
N
Laundry:
In Unit
Security:
Intercom, Concierge
Construction & Materials
Year Built:
2018
Structure Type:
Mid-Rise
Exterior Materials:
Roof:
Foundation:
Stories:
1
Heating, Cooling & Utilities
Heating:
Central
Cooling:
Central Air
Hot Water:
Water Source:
Public
Sewer:
Public Sewer
Energy Features:
Exterior & Lot
Exterior Features:
Deck
Patio & Porch:
Deck
Fencing:
Other Structures:
Lot Features:
Road Surface:
Parking & Garage
Garage Spaces:
1
Total Parking Spaces:
1
Parking Features:
Garage Door Opener, Assigned
Nearby Schools
School District
Boston School District local
C-
Where Graduates Go
Class of 2021
52%
attend college
38%
4-Year
14%
2-Year
7%
Out of State
7%
Working
School Safety
2024-25
3.7%
Above Average
3.2%
Suspensions
0.3%
In-School
0.5%
Emergency
1.8% below state avg
Elementary Schools
3 schools
F
Condon K-8 School
0.3 mi
|
#347 of 352
|
Score: 24.2
Improved 11 spots from last year
-34 below state avg
448 students
Diverse
Diverse Student Body
Grades PK-08
St. Peter Academy School
0.4 mi
Grades PK-08
A
Quincy Elementary School
0.7 mi
|
#122 of 825
|
Score: 58.1
Improved 230 spots from last year
-0.1 below state avg
719 students
Diverse
Rising School
Diverse Student Body
Strong Attendance
Grades PK-05
Middle Schools
2 schools
Middle School Academy
0.6 mi
UP Academy
0.6 mi
High Schools
3 schools
F
Boston Collaborative High School
0.6 mi
|
#389 of 346
|
Score: 22.8
Same rank as last year
282 students
Diverse
Grades 09-12
C
Quincy Upper School
0.6 mi
|
#279 of 346
|
Score: 44.4
Dropped 7 spots from last year
-13.8 below state avg
575 students
Very Diverse
12 sports
• 208 athletes
Diverse Student Body
Grades 06-12
Cathedral High School
0.8 mi
9 sports
• 430 athletes
Grades 07-12
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Location
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Neighborhood
South Boston
45 W 3rd St # 512, Boston MA 02127
Boston, MA 02127
Listing Information
Listing Agent
Mac Chinsomboon
Listing Office
Coldwell Banker Realty - Boston
Office Phone
617-266-4430
Agent MLS ID
BB803542
Office MLS ID
AN6192
Listing Data Updated
Sep 26, 2025 11:01 PM EDT
Listing information is deemed reliable but not guaranteed. Data provided by MLS Property Information Network, Inc. All information should be independently verified.
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