100 Old Harbor St # 3, Boston MA 02127

Boston, MA 02127

$550,000

Est. $3,561/month

Beds

Baths

569

Sq Ft

$967

Price/Sq Ft

0.01

Acres

1873

Year Built

Condominium

Type

14 hours 9 minutes

Time on Market

Active Open House Listed May 26, 2026 • MLS# 73524001 Copied!

About this home

OPEN HOUSE SATURDAY MAY 30th 9-10am. CHECK OUT THE VIEW from your private roof deck! This adorable 1BR penthouse unit with granite counters and stainless steel appliances is located in the heart of Southie. Soaring cathedral ceilings and a custom walk in closet with washer and dryer in unit. Close to many shops and restaurants as well as the beach and ocean! Close to 11 bus with access to financial district and seaport. Showings begin immediately!

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Property Overview

Property Type

Condominium

Listing Type

For Sale

Year Built

1873

Bedrooms

Full Bathrooms

Living Area

569 sq ft

Total Rooms

Stories

Entry Level

Main Level Bedrooms

Open House Schedule

May

Saturday, May 30

9:00 AM - 10:00 AM EDT

Facts & Features

Home Facts

Type Residential

Style Condominium

Year Built 1873

Living Area 569 sq ft

Lot Size 0.01 acres

Bedrooms 1

Full Baths 1

Total Rooms 4

Interior

Heating Forced Air, Natural Gas

Cooling Window Unit(s)

Flooring Hardwood

Appliances Range, Oven, Dishwasher, Disposal, Refrigerator, Washer

Fireplace None

Basement N

Laundry Flooring - Hardwood, Main Level, Third Floor, In Unit

Features None

Exterior

Construction None

Architecture None

Roof None

Features Deck, Deck - Roof

Pool None

Spa None

Fencing None

Patio/Porch Deck, Deck - Roof

Parking

Features On Street

Utilities

Electric 100 Amp Service

Water Public

Sewer Public Sewer

Gas None

Other For Gas Range

Financial

Annual Tax $5,541

Assessed Value $478,500

Interior Features

Flooring: Hardwood

Appliances: Range, Oven, Dishwasher, Disposal, Refrigerator, Washer

Interior Features:

Windows:

Basement: N

Laundry: Flooring - Hardwood, Main Level, Third Floor, In Unit

Security:

Construction & Materials

Year Built: 1873

Structure Type: 2/3 Family

Exterior Materials:

Roof:

Foundation:

Stories: 1

Heating, Cooling & Utilities

Heating: Forced Air, Natural Gas

Heating Zones: 1

Cooling: Window Unit(s)

Cooling Zones: 1

Hot Water:

Water Source: Public

Sewer: Public Sewer

Energy Features:

Exterior & Lot

Exterior Features: Deck, Deck - Roof

Patio & Porch: Deck, Deck - Roof

Fencing:

Other Structures:

Lot Features:

Road Surface:

Parking & Garage

Parking Features: On Street

Location

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Neighborhood

100 Old Harbor St # 3, Boston MA 02127

Boston, MA 02127

Walkability

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Nearby Schools

School information not available for this location.

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Down Payment

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Interest Rate

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Monthly Payment Breakdown

Principal & Interest $0

Property Tax $462

Homeowners Insurance $200

HOA Fee $118/mo

PMI (if <20% down) $0

Loan Summary

Total of 360 payments $0

Total principal paid $0

Total interest paid $0

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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.

Property History

Property Timeline

🏠

Listed for Sale

May 26, 2026

$550,000

Original listing

Agent: Kimberly O'Neil Mara Office: Century 21 North East

Date	Event	Price	Change	$/sqft	Details
05/26/2026	🏠 Listed for Sale	$550,000	-	-	Original listing

Price & Status History

Date	Event	Price	Change
May 26, 2026	New Listing Added	$550,000	—

Market Statistics

Time on Market

14 hours 9 minutes

Price per Sq Ft

$967

Tax History

Year	Taxes	Assessment
2025	$5,541	$478,500

Financial Details

Annual Property Tax

$5,541

Tax Year 2025

HOA Fee

$118

Monthly

Assessed Value

$478,500

Listing Information

Listing Agent Kimberly O'Neil Mara

Listing Office Century 21 North East

Agent MLS ID B8000844

Office MLS ID AN8462

Listing Data Updated May 26, 2026 1:19 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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Listed for Sale

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100 Old Harbor St # 3, Boston MA 02127

About this home

Property Overview

Open House Schedule

Facts & Features

Home Facts

Interior

Exterior

Parking

Utilities

Financial

Interior Features

Construction & Materials

Heating, Cooling & Utilities

Exterior & Lot

Parking & Garage

Location

Neighborhood

Walkability

Nearby Schools

Monthly Payment Calculator

Monthly Payment Breakdown

Loan Summary

Rate Impact

Payment Over Time

Property History

Property Timeline

Listed for Sale

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