23 Concord St, Boston MA 02129

Boston, MA 02129 • Charlestown
$1,900,000
Est. $10,813/month
Estimate assumptions

20% down, a 30-year loan at 6.5%, and $200/month estimated insurance.

Includes the supplied property-tax and HOA inputs; missing inputs contribute $0. HOA fees with an unspecified frequency are treated as monthly. PMI and closing costs are excluded.

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4
Beds
3
Baths
2,083
Sq Ft
$912
Price/Sq Ft
0.05
Acres
1870
Year Built
41
Days on Market
For Sale Open House Listed Sep 11, 2026 • MLS# 73576215 Copied! • Updated Oct 19, 2026

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Open House Schedule

24
Oct
Saturday, October 24
2:00 PM - 3:30 PM EDT
25
Oct
Sunday, October 25
2:00 PM - 3:30 PM EDT

About this home

OPEN HOUSE SAT 10/24 AND SUN 10/25 AT 2PM - 3:30PM. Rare opportunity to own a charming, turnkey 2-family home in Charlestown’s historic Gaslight District. Spanning just under 2,100 square feet, this versatile stand alone property is on one of the rare two way streets in Charlestown, and offers plenty of storage space throughout the entire house. It is the perfect setup for savvy investors or owner-occupants looking for premium built-in rental income. Property highlights include; Prime Location: Situated in the highly desirable Gaslight District on a rare, accessible two-way street near local dining, parks, and transit. Stunning Views: Enjoy iconic views of the Bunker Hill Monument and exceptional natural light throughout. Storage & Amenities: Ample storage solutions throughout the house, including custom built-in wardrobes and shared basement laundry. Outdoor Space: Access to a deck and a private backyard oasis, perfect for entertaining. Unit 1 (1 Bed, 1 Bath): Features a large bedroom with a custom built-in wardrobe, bright living space, and direct access to the deck and backyard. Boasting sun-drenched living spaces, sweeping Monument views, and three oversized bedrooms, each equipped with it’s own built-in wardrobe for maximum organization. Whether you look to convert to a large single family home, rent both units, or live in the upper unit while the lower unit offsets your mortgage, this Owner-Managed sale is a Charlestown gem.

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Recently Sold Nearby

Price & Status History

Market Insights

Property Timeline

•
Back On Market
Oct 14, 2026
Active
📋
Status: Active under contract
Oct 2, 2026
Active → Active Under Contract
🏠
Listed for Sale
Sep 12, 2026
$1,900,000
Original listing
Agent: Edmund Wong Office: New Year Realty

Tax History

Year Taxes Assessment
2026 $12,069 $1,315,800

Financial Details

Annual Property Tax
$12,069
Tax Year 2026
Assessed Value
$1,315,800

Facts & Features

Home Facts

Type Residential Income
Style Multi Family
Year Built 1870
Living Area 2,083 sq ft
Lot Size 0.05 acres
Stories 3
Bedrooms 4
Full Baths 3
Total Rooms 11

Investment Metrics

Units 2
Unit 1 Rent $2,700/mo · Y
Unit 2 Rent — · N
Total Monthly Rent $2,700/mo
Gross Income $32,400
Net Operating Income $28,196
Operating Expenses $4,271
Water/Sewer Expense $733
Electric Expense $871
Insurance Expense $2,600
Cap Rate 1.48%
Heating Steam, Natural Gas, Baseboard
Cooling Window Unit(s)
Flooring Wood, Tile, Vinyl, Carpet, Varies, Hardwood
Appliances Washer, Dryer, Range, Dishwasher, Disposal, Refrigerator, Freezer, Energy Star Qualified Dishwasher, Microwave, Range Hood, Plumbed For Ice Maker
Fireplace None
Basement Full, Interior Entry, Concrete, Unfinished
Laundry Electric Dryer Hookup, Washer Hookup
Features Laundry Room, Pantry, Storage, High Speed Internet, Bathroom With Tub & Shower, Smart Thermostat, Internet Available - Broadband, Crown Molding, Stone/granite/solid Counters, Upgraded Cabinets, Upgraded Countertops, Walk-in Closet(s), Bathroom With Shower Stall, Remodeled, Living Room, Kitchen
Construction Frame
Architecture None
Roof Shingle, Rubber
Features Balcony/deck, Garden
Pool None
Spa None
Fencing Fenced
Patio/Porch Deck, Deck - Composite, Patio
Features On Street
Electric Circuit Breakers
Water Public
Sewer Public Sewer
Gas None
Other For Gas Range, For Gas Oven, For Electric Dryer, Washer Hookup, Icemaker Connection

Financial

Annual Tax $12,069
Assessed Value $1,315,800
Fee Includes None
Amenities None
Optional Fee Includes None
Lead Paint Unknown
Seller Disclosures None
Possession None
Accepted Financing None
Structure Type []
House Color Ocean Blue
Sq Ft Source Measured
Documents None
County Suffolk
Total market time (incl. prior listings) 38 days

Property Overview

Property Type
Multi Family
Listing Type
For Sale
Year Built
1870
Bedrooms
4
Full Bathrooms
3
Living Area
2,083 sq ft
Total Rooms
11
Stories
3
Levels
3

Floor Layout

Interior Features

Flooring: Wood, Tile, Vinyl, Carpet, Varies, Hardwood
Appliances: Washer, Dryer, Range, Dishwasher, Disposal, Refrigerator, Freezer, ENERGY STAR Qualified Dishwasher, Microwave, Range Hood, Plumbed For Ice Maker
Interior Features: Laundry Room, Pantry, Storage, High Speed Internet, Bathroom With Tub & Shower, Smart Thermostat, Internet Available - Broadband, Crown Molding, Stone/Granite/Solid Counters, Upgraded Cabinets, Upgraded Countertops, Walk-In Closet(s), Bathroom with Shower Stall, Remodeled, Living Room, Kitchen
Windows: Skylight(s), Insulated Windows
Basement: Full, Interior Entry, Concrete, Unfinished
Laundry: Electric Dryer Hookup, Washer Hookup
Security:

Construction & Materials

Year Built: 1870
Structure Type:
Exterior Materials: Frame
Roof: Shingle, Rubber
Foundation: Block, Stone
Stories: 3

Utilities & Systems

Heating: Steam, Natural Gas, Baseboard
Heating Zones: 2
Cooling: Window Unit(s)
Hot Water: Tank
Water Source: Public
Sewer: Public Sewer
Energy Features:

Exterior & Lot

Exterior Features: Balcony/Deck, Garden
Patio & Porch: Deck, Deck - Composite, Patio
Fencing: Fenced
Other Structures:
Lot Features: Other
Road Surface:

Parking & Garage

Parking Features: On Street

Nearby Schools

School information not available for this location.

Monthly Payment Calculator

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Loan Amount
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After down payment
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Over life of loan
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Including down payment
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Down: $0
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Monthly Payment Breakdown

Principal & Interest $0
Property Tax $1,006
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

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Save $0/mo
Current Rate
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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

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Neighborhood

Charlestown

23 Concord St, Boston MA 02129

Boston, MA 02129

Listing Information

Listing Agent Edmund Wong
Listing Office New Year Realty
Office Phone 339-400-8007
Agent MLS ID BB805141
Office MLS ID AN1076
Listing Data Updated Oct 19, 2026 9:58 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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Steve Novak Real Estate
Steve Novak Real Estate
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