BMN Boston

Get our mobile app!

Download on the App Store

401 W 4th St, Boston MA 02127

Boston, MA 02127 • South Boston
$1,249,000
$1,199,000
Est. $7,115/month
5
Beds
5
Baths
2,795
Sq Ft
$429
Price/Sq Ft
0.03
Acres
1900
Year Built
40
Days on Market
Active Price Drop -$50,000 Listed Jun 9, 2026 • MLS# 73532773 Copied! • Updated Jul 18, 2026

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.

View in the App

Save this property, schedule tours instantly, and get alerts when the price drops

Scan to download BMN Boston app Scan with phone
Get the full experience in the BMN Boston app

BMN Estimate

Get the number an algorithm can't give you

A free agent CMA factors in condition, upgrades, and the street — the things comps alone can't see.

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

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%
Heating None
Cooling None
Flooring None
Appliances None
Fireplace None
Basement Partially Finished
Laundry None
Features None
Construction None
Architecture None
Roof Shingle, Rubber
Features None
Pool None
Spa None
Fencing None
Patio/Porch Enclosed, Patio
Features None
Electric None
Water Public
Sewer Public Sewer
Gas None
Other None

Financial

Annual Tax $10,222
Assessed Value $882,700
Fee Includes None
Amenities None
Optional Fee Includes None
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.
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) 39 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

Room Details

Other Floor

Bathroom1
Bedroom5
Bedroom4
Bedroom3
Dining Room
Kitchen
Bathroom2
Bedroom2
Living Room
Bathroom3
Master Bedroom
Office
Family Room
Master Bathroom

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:
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
E

Elementary Schools

3 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
Perkins Elementary
0.3 mi
M

Middle Schools

3 schools
Middle School Academy
0.2 mi
UP Academy
0.2 mi
McCormack Middle
1.3 mi
H

High Schools

3 schools
F
Boston Collaborative High School
0.2 mi | #389 of 346 | Score: 22.8
Dropped 2 spots from last year
210 students Diverse
Grades 09-12
Excel High
0.3 mi
F
Excel High School
0.3 mi | #332 of 346 | Score: 26.2
Improved 28 spots from last year
-32.1 below state avg
301 students Very Diverse
11 sports • 241 athletes
Rising School Diverse Student Body
Grades 10-12
Learn about these ratings

Monthly Payment Calculator

Monthly Payment
$0
Principal, interest, taxes & insurance
Loan Amount
$0
After down payment
Total Interest
$0
Over life of loan
Total Cost
$0
Including down payment
%
Down: $0
%

Monthly Payment Breakdown

Principal & Interest $0
Property Tax $852
Homeowners Insurance $200
PMI (if <20% down) $0

Loan Summary

Total of 360 payments $0
Total principal paid $0
Total interest paid $0

Rate Impact

-0.5% Rate
$0/mo
Save $0/mo
Current Rate
$0/mo
+0.5% Rate
$0/mo
Cost $0/mo

Payment Over Time

Interest
Principal
Year 1
95% Interest
Year 15
50/50
Year 30
95% Principal
* Estimates only. Actual payments may vary. Consult with a lender for accurate figures.

Location

Loading map...

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 Jul 18, 2026 3:05 AM EDT
Listing information is deemed reliable but not guaranteed. Data provided by MLS Property Information Network, Inc. All information should be independently verified.

Contact Us

Steven Novak
Steven Novak
BMN Boston Real Estate
Ask about this property — free, no obligation.

Similar Homes for Sale

Comparable Properties

Customize Comparable Search

Finding comparable properties...

Market Analytics for Boston, MA

Real-time market trends and pricing data for this area

401 W 4th St, Boston MA 02127 - Photo 1 401 W 4th St, Boston MA 02127 - Photo 2 401 W 4th St, Boston MA 02127 - Photo 3 401 W 4th St, Boston MA 02127 - Photo 4 401 W 4th St, Boston MA 02127 - Photo 5 401 W 4th St, Boston MA 02127 - Photo 6 401 W 4th St, Boston MA 02127 - Photo 7 401 W 4th St, Boston MA 02127 - Photo 8 401 W 4th St, Boston MA 02127 - Photo 9 401 W 4th St, Boston MA 02127 - Photo 10 401 W 4th St, Boston MA 02127 - Photo 11
Steven Novak

Steven Novak

BMN Boston Real Estate

Your message will be sent to Steven Novak.

Schedule a Tour