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100 Old Harbor St #3, 
Boston, MA 02127

$550,000

1

Bed

1

Bath

569

Sq Ft

Condo

Active

Listed by

Kimberly O'Neil Mara

Century 21 North East

800-844-7653

Last updated:

May 30, 2026, 04:55 AM

MLS#

73524001

Source:

MLSPIN

About This Home

100 Old Harbor St #3

OPEN HOUSE CANCELLED - OFFER ACCEPTED. 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!

Home Facts

Condo

1 Bath

1 Bedroom

Built in 1873

Price Summary

550,000

$966 per Sq. Ft.

MLS #:

73524001

Last Updated:

May 30, 2026, 04:55 AM

Rooms & Interior

Bedrooms

Total Bedrooms:

1

Bathrooms

Total Bathrooms:

1

Full Bathrooms:

1

Interior

Living Area:

569 Sq. Ft.

Structure

Structure

Building Area:

569 Sq. Ft.

Year Built:

1873

Lot

Lot Size (Sq. Ft):

569

Finances & Disclosures

Finances

Price:

$550,000

Price per Sq. Ft:

$966 per Sq. Ft.

Source:MLSPIN
The property listing data and information, or the Images, set forth herein were provided to MLS Property Information Network, Inc. from third party sources, including sellers, lessors and public records, and were compiled by MLS Property Information Network, Inc. The property listing data and information, and the Images, are for the personal, non-commercial use of consumers having a good faith interest in purchasing or leasing listed properties of the type displayed to them and may not be used for any purpose other than to identify prospective properties which such consumers may have a good faith interest in purchasing or leasing. MLS Property Information Network, Inc. and its subscribers disclaim any and all representations and warranties as to the accuracy of the property listing data and information, or as to the accuracy of any of the Images, set forth herein.

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Contact an Agent

Yes, I would like more information. Please use and/or share my information with a Coldwell Banker ® affiliated agent to contact me about my real estate needs. By clicking Contact, I request to be contacted by phone or text message and consent to being contacted by automated means. I understand that my consent to receive calls or texts is not a condition of purchasing any property, goods, or services. Alternatively, I understand that I can access real estate services by email or I can contact the agent myself.

If a Coldwell Banker affiliated agent is not available in the area where I need assistance, I agree to be contacted by a real estate agent affiliated with another brand owned or licensed by Anywhere Real Estate (BHGRE®, CENTURY 21®, Corcoran®, ERA®, or Sotheby's International Realty®). I acknowledge that I have read and agree to the terms of use and privacy notice.