401 W 4th St, Boston MA 02127
Boston, MA 02127 • South Boston
$1,249,000
$1,199,000
Est. $7,115/month
About this home
Amazing opportunity to develop a single family to a 4 floor two family with approved plans included in the sale. The building currently features 3 floors of living space, 4 bedrooms, and a partially finished walk out basement with tenants in place until August 2026. The plans have both units being coveted duplexes with generous square footage and the ability to extend the living area even further by maximizing the by right FAR of 2.0. Buyer has the ability to flip as condos or hold for great rental returns.
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Recently Sold Nearby
Property History
Market Insights
1
Price Changes
4%
Price Range
Property Timeline
Price Reduced
Jul 14, 2026
$1,199,000
$50,000
(-4%)
From $1,249,000 to $1,199,000 (-4.0%)
Listed for Sale
Jun 9, 2026
$1,249,000
Original listing
Agent: Calder Billings
Office: Keller Williams Realty
| Date | Event | Price | Change | $/sqft | Details |
|---|---|---|---|---|---|
| 07/14/2026 | ↓ Price Reduced | $1,199,000 | $50,000 | - | From $1,249,000 to $1,199,000 (-4.0%) |
| 06/09/2026 | 🏠 Listed for Sale | $1,249,000 | - | - | Original listing |
Tax History
| Year | Taxes | Assessment |
|---|---|---|
| 2025 | $10,222 | $882,700 |
Financial Details
Annual Property Tax
$10,222
Tax Year 2025
Assessed Value
$882,700
Facts & Features
Home Facts
Type
Residential Income
Style
Multi Family
Year Built
1900
Living Area
2,795 sq ft
Lot Size
0.03 acres
Bedrooms
5
Full Baths
5
Total Rooms
11
Investment Metrics
Units
2
Unit 1 Rent
— · Y
Unit 2 Rent
— · N
Gross Income
$60,000
Net Operating Income
$60,000
Cap Rate
5.00%
Interior
Heating
None
Cooling
None
Flooring
None
Appliances
None
Fireplace
None
Basement
Partially Finished
Laundry
None
Features
None
Exterior
Construction
None
Architecture
None
Roof
Shingle, Rubber
Features
None
Pool
None
Spa
None
Fencing
None
Patio/Porch
Enclosed, Patio
Parking
Features
None
Utilities
Electric
None
Water
Public
Sewer
Public Sewer
Gas
None
Other
None
Financial
Annual Tax
$10,222
Assessed Value
$882,700
HOA & Community
Fee Includes
None
Amenities
None
Optional Fee Includes
None
MA Disclosures
Seller Disclosures
Currently Is A 4 Bedroom/2 Bathroom Single Family. Approved Plans Included In Sale To Convert To A 2795sqft Two-family. Current Lease Is Until 8/31/26 For $5, 000/month. Plans Could Be Edited To Maximize By Right Far Of 2.0.
Additional Details
Possession
None
Accepted Financing
None
Structure Type
[]
Sq Ft Source
Owner
Sq Ft Disclosures
FAR not Maximized. Buyer to do own due diligence to increase FAR to 2.0 by right amount.
Documents
None
County
Suffolk
Total market time (incl. prior listings)
56 days
Property Overview
Property Type
Multi Family
Listing Type
For Sale
Year Built
1900
Bedrooms
5
Full Bathrooms
5
Living Area
2,795 sq ft
Total Rooms
11
Stories
4
Levels
4
Floor Layout
Interactive room guide
Floor Layout
Finished Area
2,222 sq ft above grade
573 sq ft below grade
Display Options
Outdoor Areas
Patio & porchEnclosed, Patio
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:
Appliances:
Interior Features:
Windows:
Basement:
Partially Finished
Laundry:
Security:
Construction & Materials
Year Built:
1900
Structure Type:
Exterior Materials:
Roof:
Shingle, Rubber
Foundation:
Other
Stories:
4
Heating, Cooling & Utilities
Heating:
Cooling:
Hot Water:
Natural Gas
Water Source:
Public
Sewer:
Public Sewer
Energy Features:
Exterior & Lot
Exterior Features:
Patio & Porch:
Enclosed, Patio
Fencing:
Other Structures:
Lot Features:
Gentle Sloping
Road Surface:
Parking & Garage
Parking Features:
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
10 schools
St. Peter Academy School
< 0.1 mi
Grades PK-08
F
Condon K-8 School
0.2 mi
|
#345 of 352
|
Score: 24.6
Improved 13 spots from last year
-33.6 below state avg
518 students
Diverse
Diverse Student Body
Grades PK-08
F
Tynan Elementary School
0.5 mi
|
#816 of 824
|
Score: 24.8
Dropped 94 spots from last year
-33.5 below state avg
227 students
Very Diverse
Diverse Student Body
Grades PK-06
B
Excel Academy Charter School
0.9 mi
|
#155 of 346
|
Score: 54.9
Improved 160 spots from last year
-3.3 below state avg
1,379 students
Moderate
High Graduation Rate
Rising School
Grades 05-12
F
Clap Elementary School
1.0 mi
|
#808 of 824
|
Score: 26.3
Dropped 23 spots from last year
-31.9 below state avg
140 students
Diverse
Diverse Student Body
Grades PK-06
Saint John Paul II Academy - Columbia
1.2 mi
Grades PK-08
B
Boston Collegiate Charter School
1.2 mi
|
#167 of 346
|
Score: 53.7
Improved 31 spots from last year
-4.5 below state avg
708 students
Diverse
Rising School
College Ready Curriculum
Diverse Student Body
Grades 05-12
F
Blackstone Elementary School
1.2 mi
|
#809 of 824
|
Score: 26.3
Improved 12 spots from last year
-31.9 below state avg
582 students
Moderate
Grades PK-06
D
Dever Elementary School
1.4 mi
|
#752 of 824
|
Score: 32.4
Improved 56 spots from last year
-25.9 below state avg
445 students
Diverse
Rising School
Grades K-06
D
Melvin H. King South End Academy
1.4 mi
|
#24 of 25
|
Score: 20.2
Improved 363 spots from last year
-38.1 below state avg
125 students
Diverse
Rising School
Diverse Student Body
Grades PK-12
Middle Schools
10 schools
Middle School Academy
0.2 mi
A
Uncommon Schools - Roxbury Preparatory Dorchester Campus Middle School
2.1 mi
|
#4 of 16
|
Score: 41.9
Improved 187 spots from last year
-16.3 below state avg
1,126 students
Diverse
Rising School
College Ready Curriculum
Grades 05-08
F
Higginson/Lewis K-8 School
2.2 mi
|
#349 of 352
|
Score: 23.6
Improved 3 spots from last year
-34.6 below state avg
213 students
Diverse
Grades 03-08
Dearborn Middle School
2.6 mi
Mother Caroline Academy
2.7 mi
Grades 05-08
Nativity Prep School
2.9 mi
Grades 05-08
Epiphany School
3.1 mi
Grades 05-08
C
Ohrenberger School
7.3 mi
|
#265 of 352
|
Score: 34.9
Improved 20 spots from last year
-23.3 below state avg
477 students
Diverse
Rising School
Diverse Student Body
Grades 03-08
UP Academy
0.2 mi
McCormack Middle
1.3 mi
High Schools
10 schools
C
Quincy Upper School
1.1 mi
|
#268 of 346
|
Score: 44.6
Improved 4 spots from last year
-13.6 below state avg
557 students
Very Diverse
12 sports
• 208 athletes
High Graduation Rate
Diverse Student Body
Grades 06-12
Cathedral High School
1.1 mi
9 sports
• 430 athletes
Grades 07-12
C
Ruth Batson Academy
1.3 mi
|
#19 of 25
|
Score: 27.6
Improved 346 spots from last year
-30.6 below state avg
604 students
Diverse
8 sports
• 128 athletes
Early College Program
Rising School
Grades 07-12
B
Dearborn STEM Academy
1.8 mi
|
#13 of 25
|
Score: 31.7
Improved 356 spots from last year
-26.6 below state avg
565 students
Diverse
10 sports
• 242 athletes
Early College Program
Rising School
Grades 07-12
Newman School
2.0 mi
Grades 07-12
A-
O'Bryant School of Math & Science
2.1 mi
|
#90 of 346
|
Score: 61.1
Improved 94 spots from last year
+2.9 above state avg
1,509 students
Very Diverse
High Graduation Rate
Rising School
College Ready Curriculum
Diverse Student Body
Grades 07-12
A+
Boston Latin Academy
2.3 mi
|
#2 of 25
|
Score: 63.9
Improved 214 spots from last year
+5.7 above state avg
1,693 students
Very Diverse
17 sports
• 1,298 athletes
High Graduation Rate
Rising School
Strong Athletics
Diverse Student Body
Grades 07-12
A+
Boston Latin School
2.7 mi
|
#19 of 346
|
Score: 73.3
Improved 61 spots from last year
+15.1 above state avg
2,424 students
Very Diverse
18 sports
• 2,006 athletes
Strong AP Program
High Graduation Rate
Rising School
Strong Athletics
Grades 07-12
D
Charlestown High School
3.1 mi
|
#322 of 346
|
Score: 31.0
Improved 49 spots from last year
-27.2 below state avg
754 students
Diverse
11 sports
• 488 athletes
Early College Program
Rising School
Grades 07-12
C-
East Boston High School
3.2 mi
|
#305 of 346
|
Score: 37.3
Improved 31 spots from last year
-20.9 below state avg
1,252 students
Less Diverse
14 sports
• 584 athletes
Early College Program
Rising School
Grades 07-12
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95% Interest
Year 15
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Location
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Neighborhood
South Boston
401 W 4th St, Boston MA 02127
Boston, MA 02127
Listing Information
Listing Agent
Calder Billings
Listing Office
Keller Williams Realty
Office Phone
617-969-9000
Agent MLS ID
CN217368
Office MLS ID
BB5962
Listing Data Updated
Aug 4, 2026 9:32 AM 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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